Be sure to report any Grakn boot up issues!


#24

Hi,
I’m trying to start Grakn server using ./grakn server start cmd, but it is starting only Grakn Storage and Grakn Queue. For Grakn Engine it is printing only . . . . . . After few min when i check for ./grakn server status status it is showing all the 3 (Storage, Queue and Engine) running.

Other Details:
Grakn version: 1.3
operating system: Red Hat Enterprise Linux 7 (64 bit)
Download: Downloaded from Grakn site ([https://grakn.ai/download])
o/p of “ls -la /tmp/*.pid” :
-rw-------. 1 admin wheel 5 Feb 15 14:30 /tmp/grakn-engine.pid
-rw-------. 1 admin wheel 6 Feb 15 14:29 /tmp/grakn-queue.pid
-rw-------. 1 admin wheel 5 Feb 15 14:29 /tmp/grakn-storage.pid
o/p of “ps -ef | grep redis-server”:
admin 20689 1 0 14:29 ? 00:00:00 services/redis/redis-server-linux 127.0.0.1:6379
admin 21251 21113 0 14:47 pts/1 00:00:00 grep --color=auto redis-server

getting below error in grakn.log file:

2019-02-15 10:16:04,739 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:16:04,747 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:16:04,811 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:16:04,811 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:18:33,597 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:18:33,603 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:18:33,653 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:18:33,654 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:18:33,656 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:18:33,656 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:18:34,215 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:18:34,215 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:19:34,395 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:19:34,405 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:19:46,969 [main] INFO a.g.engine.task.BackgroundTaskRunner - Registering a new background task.
2019-02-15 10:19:47,037 [main] INFO ai.grakn.engine.Server -

2019-02-15 10:19:47,038 [main] INFO ai.grakn.engine.Server -

  ________  _____     _______  __    __  __    __      _______  _______  _____     _______
 |   __   ||   _  \  |   _   ||  |  /  /|  \  |  |    |   _   ||   _   ||   _  \  |   ____|
 |  |  |__||  | |  | |  | |  ||  | /  / |   \ |  |    |  | |__||  | |  ||  | |  | |  |
 |  | ____ |  |_| /  |  |_|  ||  |/  /  |    \|  |    |  |     |  | |  ||  |_| /  |  |____
 |  ||_   ||   _  \  |   _   ||   _  \  |   _    |    |  |  __ |  | |  ||   _  \  |   ____|
 |  |__|  ||  | \  \ |  | |  ||  | \  \ |  | \   |    |  |_|  ||  |_|  ||  | \  \ |  |____
 |________||__|  \__\|__| |__||__|  \__\|__|  \__|    |_______||_______||__|  \__\|_______|

                                     THE KNOWLEDGE GRAPH

====================================================================================================
2019-02-15 10:19:47,038 [main] INFO ai.grakn.engine.Server -

2019-02-15 10:19:47,043 [main] INFO ai.grakn.engine.Server - EngineID{value=blrrhl7.ad.infosys.com-a8a887e3-913f-4fc8-922d-4b65ac9300a8} is checking the system schema
2019-02-15 10:20:20,788 [main] INFO ai.grakn.engine.KeyspaceStore - Loading schema
2019-02-15 10:20:23,100 [main] INFO ai.grakn.engine.KeyspaceStore - Loaded system schema to system keyspace. Took: 36.06 s
2019-02-15 10:20:35,918 [main] INFO ai.grakn.engine.Server - Grakn started in 48.88 s
2019-02-15 10:24:04,032 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:24:04,037 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:24:04,082 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-dist-1.3.0
2019-02-15 10:24:04,082 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-dist-1.3.0/conf/grakn.properties
2019-02-15 10:49:46,977 [pool-2-thread-1] ERROR a.g.engine.task.BackgroundTaskRunner - An exception has occurred during the execution of a background task [ai.grakn.engine.task.postprocessing.PostProcessingTask@58e1d9d]. Skipping…
java.lang.NullPointerException: null
at org.janusgraph.graphdb.tinkerpop.JanusGraphBlueprintsGraph.startNewTx(JanusGraphBlueprintsGraph.java:80)
at org.janusgraph.graphdb.tinkerpop.JanusGraphBlueprintsGraph.access$000(JanusGraphBlueprintsGraph.java:47)
at org.janusgraph.graphdb.tinkerpop.JanusGraphBlueprintsGraph$GraphTransaction.doOpen(JanusGraphBlueprintsGraph.java:267)
at org.apache.tinkerpop.gremlin.structure.util.AbstractTransaction.open(AbstractTransaction.java:95)
at ai.grakn.kb.internal.GraknTxJanus.openTransaction(GraknTxJanus.java:62)
at ai.grakn.factory.TxFactoryAbstract$GraphWithTx.openTx(TxFactoryAbstract.java:105)
at ai.grakn.factory.TxFactoryAbstract.open(TxFactoryAbstract.java:66)
at ai.grakn.factory.EmbeddedGraknSession.transaction(EmbeddedGraknSession.java:133)
at ai.grakn.keyspace.KeyspaceStoreImpl.keyspaces(KeyspaceStoreImpl.java:143)
at ai.grakn.engine.task.postprocessing.PostProcessingTask.run(PostProcessingTask.java:70)
at ai.grakn.engine.task.BackgroundTaskRunner.lambda$register$0(BackgroundTaskRunner.java:65)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
2019-02-15 10:50:17,493 [qtp1023745907-70] ERROR ai.grakn.engine.ServerHTTP - REST error
org.janusgraph.core.JanusGraphException: Could not call index
at org.janusgraph.graphdb.util.SubqueryIterator.(SubqueryIterator.java:71)
at org.janusgraph.graphdb.transaction.StandardJanusGraphTx$6.execute(StandardJanusGraphTx.java:1281)
at org.janusgraph.graphdb.transaction.StandardJanusGraphTx$6.execute(StandardJanusGraphTx.java:1150)
at org.janusgraph.graphdb.query.QueryProcessor$LimitAdjustingIterator.getNewIterator(QueryProcessor.java:209)
at org.janusgraph.graphdb.query.LimitAdjustingIterator.hasNext(LimitAdjustingIterator.java:68)
at org.janusgraph.graphdb.query.ResultSetIterator.nextInternal(ResultSetIterator.java:54)
at org.janusgraph.graphdb.query.ResultSetIterator.(ResultSetIterator.java:44)
at org.janusgraph.graphdb.query.QueryProcessor.iterator(QueryProcessor.java:68)
at com.google.common.collect.Iterables$7.iterator(Iterables.java:612)
at org.janusgraph.graphdb.tinkerpop.optimize.JanusGraphStep.lambda$new$0(JanusGraphStep.java:69)
at org.apache.tinkerpop.gremlin.process.traversal.step.map.GraphStep.processNextStart(GraphStep.java:142)
at org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep.hasNext(AbstractStep.java:143)
at org.apache.tinkerpop.gremlin.process.traversal.util.DefaultTraversal.hasNext(DefaultTraversal.java:192)
at ai.grakn.kb.internal.EmbeddedGraknTx.getConcept(EmbeddedGraknTx.java:354)
at ai.grakn.kb.internal.EmbeddedGraknTx.getSchemaConcept(EmbeddedGraknTx.java:599)
at ai.grakn.kb.internal.EmbeddedGraknTx.getSchemaConcept(EmbeddedGraknTx.java:628)
at ai.grakn.kb.admin.GraknAdmin.getMetaConcept(GraknAdmin.java:51)
at ai.grakn.engine.controller.ConceptController.lambda$getTypes$12(ConceptController.java:255)
at ai.grakn.engine.controller.ConceptController.getConcepts(ConceptController.java:275)
at ai.grakn.engine.controller.ConceptController.getTypes(ConceptController.java:255)
at spark.RouteImpl$1.handle(RouteImpl.java:61)
at spark.http.matching.Routes.execute(Routes.java:61)
at spark.http.matching.MatcherFilter.doFilter(MatcherFilter.java:126)
at spark.embeddedserver.jetty.JettyHandler.doHandle(JettyHandler.java:50)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
at org.eclipse.jetty.server.Server.handle(Server.java:517)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:261)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Could not successfully complete backend operation due to repeated temporary exceptions after PT10S
at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:101)
at org.janusgraph.diskstorage.util.BackendOperation.execute(BackendOperation.java:55)
at org.janusgraph.diskstorage.BackendTransaction.executeRead(BackendTransaction.java:470)
at org.janusgraph.diskstorage.BackendTransaction.indexQuery(BackendTransaction.java:396)
at org.janusgraph.graphdb.query.graph.MultiKeySliceQuery.execute(MultiKeySliceQuery.java:51)
at org.janusgraph.graphdb.database.IndexSerializer.query(IndexSerializer.java:530)
at org.janusgraph.graphdb.util.SubqueryIterator.(SubqueryIterator.java:66)
… 37 common frames omitted
Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Temporary failure in storage backend
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:161)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:115)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getSlice(AstyanaxKeyColumnValueStore.java:104)
at org.janusgraph.diskstorage.keycolumnvalue.KCVSProxy.getSlice(KCVSProxy.java:77)
at org.janusgraph.diskstorage.keycolumnvalue.KCVSProxy.getSlice(KCVSProxy.java:77)
at org.janusgraph.diskstorage.BackendTransaction$5.call(BackendTransaction.java:399)
at org.janusgraph.diskstorage.BackendTransaction$5.call(BackendTransaction.java:396)
at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:69)
… 43 common frames omitted
Caused by: com.netflix.astyanax.connectionpool.exceptions.NoAvailableHostsException: NoAvailableHostsException: [host=None(0.0.0.0):0, latency=0(0), attempts=0]No hosts to borrow from
at com.netflix.astyanax.connectionpool.impl.RoundRobinExecuteWithFailover.(RoundRobinExecuteWithFailover.java:48)
at com.netflix.astyanax.connectionpool.impl.TokenAwareConnectionPoolImpl.newExecuteWithFailover(TokenAwareConnectionPoolImpl.java:83)
at com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool.executeWithFailover(AbstractHostPartitionConnectionPool.java:352)
at com.netflix.astyanax.thrift.ThriftColumnFamilyQueryImpl$4.execute(ThriftColumnFamilyQueryImpl.java:538)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:159)
… 50 common frames omitted
2019-02-15 10:50:20,164 [qtp1023745907-89] WARN a.g.e.controller.GraqlController - Retrying transaction after {1} attempts due to exception {Could not call index}
2019-02-15 10:50:20,166 [qtp1023745907-89] ERROR ai.grakn.engine.ServerHTTP - REST error
org.janusgraph.core.JanusGraphException: Could not call index
at org.janusgraph.graphdb.util.SubqueryIterator.(SubqueryIterator.java:71)
at org.janusgraph.graphdb.transaction.StandardJanusGraphTx$6.execute(StandardJanusGraphTx.java:1281)
at org.janusgraph.graphdb.transaction.StandardJanusGraphTx$6.execute(StandardJanusGraphTx.java:1150)
at org.janusgraph.graphdb.query.QueryProcessor$LimitAdjustingIterator.getNewIterator(QueryProcessor.java:209)
at org.janusgraph.graphdb.query.LimitAdjustingIterator.hasNext(LimitAdjustingIterator.java:68)
at org.janusgraph.graphdb.query.ResultSetIterator.nextInternal(ResultSetIterator.java:54)
at org.janusgraph.graphdb.query.ResultSetIterator.(ResultSetIterator.java:44)
at org.janusgraph.graphdb.query.QueryProcessor.iterator(QueryProcessor.java:68)
at com.google.common.collect.Iterables$7.iterator(Iterables.java:612)
at org.janusgraph.graphdb.tinkerpop.optimize.JanusGraphStep.lambda$new$0(JanusGraphStep.java:69)
at org.apache.tinkerpop.gremlin.process.traversal.step.map.GraphStep.processNextStart(GraphStep.java:142)
at org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep.hasNext(AbstractStep.java:143)
at org.apache.tinkerpop.gremlin.process.traversal.util.DefaultTraversal.hasNext(DefaultTraversal.java:192)
at ai.grakn.kb.internal.EmbeddedGraknTx.getConcept(EmbeddedGraknTx.java:354)
at ai.grakn.kb.internal.EmbeddedGraknTx.getSchemaConcept(EmbeddedGraknTx.java:599)
at ai.grakn.kb.internal.EmbeddedGraknTx.getSchemaConcept(EmbeddedGraknTx.java:628)
at ai.grakn.kb.admin.GraknAdmin.getMetaRule(GraknAdmin.java:101)
at ai.grakn.graql.internal.reasoner.rule.RuleUtils.hasRules(RuleUtils.java:62)
at ai.grakn.graql.internal.query.match.MatchInfer.stream(MatchInfer.java:60)
at ai.grakn.graql.internal.query.match.MatchTx.stream(MatchTx.java:51)
at ai.grakn.graql.internal.query.match.AbstractMatch.stream(AbstractMatch.java:69)
at ai.grakn.graql.internal.query.executor.QueryExecutorImpl.run(QueryExecutorImpl.java:72)
at ai.grakn.graql.internal.query.GetQueryImpl.stream(GetQueryImpl.java:65)
at ai.grakn.graql.Query.execute(Query.java:60)
at ai.grakn.engine.controller.GraqlController.executeAndMonitor(GraqlController.java:293)
at ai.grakn.engine.controller.GraqlController.executeQuery(GraqlController.java:280)
at ai.grakn.engine.controller.GraqlController.lambda$executeGraql$5(GraqlController.java:193)
at com.github.rholder.retry.AttemptTimeLimiters$NoAttemptTimeLimit.call(AttemptTimeLimiters.java:78)
at com.github.rholder.retry.Retryer.call(Retryer.java:160)
at ai.grakn.engine.controller.GraqlController.executeFunctionWithRetrying(GraqlController.java:209)
at ai.grakn.engine.controller.GraqlController.executeGraql(GraqlController.java:182)
at spark.RouteImpl$1.handle(RouteImpl.java:61)
at spark.http.matching.Routes.execute(Routes.java:61)
at spark.http.matching.MatcherFilter.doFilter(MatcherFilter.java:126)
at spark.embeddedserver.jetty.JettyHandler.doHandle(JettyHandler.java:50)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
at org.eclipse.jetty.server.Server.handle(Server.java:517)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:261)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Could not successfully complete backend operation due to repeated temporary exceptions after PT10S
at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:101)
at org.janusgraph.diskstorage.util.BackendOperation.execute(BackendOperation.java:55)
at org.janusgraph.diskstorage.BackendTransaction.executeRead(BackendTransaction.java:470)
at org.janusgraph.diskstorage.BackendTransaction.indexQuery(BackendTransaction.java:396)
at org.janusgraph.graphdb.query.graph.MultiKeySliceQuery.execute(MultiKeySliceQuery.java:51)
at org.janusgraph.graphdb.database.IndexSerializer.query(IndexSerializer.java:530)
at org.janusgraph.graphdb.util.SubqueryIterator.(SubqueryIterator.java:66)
… 48 common frames omitted
Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Temporary failure in storage backend
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:161)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:115)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getSlice(AstyanaxKeyColumnValueStore.java:104)
at org.janusgraph.diskstorage.keycolumnvalue.KCVSProxy.getSlice(KCVSProxy.java:77)
at org.janusgraph.diskstorage.keycolumnvalue.KCVSProxy.getSlice(KCVSProxy.java:77)
at org.janusgraph.diskstorage.BackendTransaction$5.call(BackendTransaction.java:399)
at org.janusgraph.diskstorage.BackendTransaction$5.call(BackendTransaction.java:396)
at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:69)
… 54 common frames omitted
Caused by: com.netflix.astyanax.connectionpool.exceptions.NoAvailableHostsException: NoAvailableHostsException: [host=None(0.0.0.0):0, latency=0(0), attempts=0]No hosts to borrow from
at com.netflix.astyanax.connectionpool.impl.RoundRobinExecuteWithFailover.(RoundRobinExecuteWithFailover.java:48)
at com.netflix.astyanax.connectionpool.impl.TokenAwareConnectionPoolImpl.newExecuteWithFailover(TokenAwareConnectionPoolImpl.java:83)
at com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool.executeWithFailover(AbstractHostPartitionConnectionPool.java:352)
at com.netflix.astyanax.thrift.ThriftColumnFamilyQueryImpl$4.execute(ThriftColumnFamilyQueryImpl.java:538)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:159)
… 61 common frames omitted
2019-02-15 10:50:23,555 [qtp1023745907-55] WARN a.g.e.controller.GraqlController - Retrying transaction after {1} attempts due to exception {Could not call index}
2019-02-15 10:50:23,556 [qtp1023745907-55] ERROR ai.grakn.engine.ServerHTTP - REST error
org.janusgraph.core.JanusGraphException: Could not call index
at org.janusgraph.graphdb.util.SubqueryIterator.(SubqueryIterator.java:71)
at org.janusgraph.graphdb.transaction.StandardJanusGraphTx$6.execute(StandardJanusGraphTx.java:1281)
at org.janusgraph.graphdb.transaction.StandardJanusGraphTx$6.execute(StandardJanusGraphTx.java:1150)
at org.janusgraph.graphdb.query.QueryProcessor$LimitAdjustingIterator.getNewIterator(QueryProcessor.java:209)
at org.janusgraph.graphdb.query.LimitAdjustingIterator.hasNext(LimitAdjustingIterator.java:68)
at org.janusgraph.graphdb.query.ResultSetIterator.nextInternal(ResultSetIterator.java:54)
at org.janusgraph.graphdb.query.ResultSetIterator.(ResultSetIterator.java:44)
at org.janusgraph.graphdb.query.QueryProcessor.iterator(QueryProcessor.java:68)
at com.google.common.collect.Iterables$7.iterator(Iterables.java:612)
at org.janusgraph.graphdb.tinkerpop.optimize.JanusGraphStep.lambda$new$0(JanusGraphStep.java:69)
at org.apache.tinkerpop.gremlin.process.traversal.step.map.GraphStep.processNextStart(GraphStep.java:142)
at org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep.hasNext(AbstractStep.java:143)
at org.apache.tinkerpop.gremlin.process.traversal.util.DefaultTraversal.hasNext(DefaultTraversal.java:192)
at ai.grakn.kb.internal.EmbeddedGraknTx.getConcept(EmbeddedGraknTx.java:354)
at ai.grakn.kb.internal.EmbeddedGraknTx.getSchemaConcept(EmbeddedGraknTx.java:599)
at ai.grakn.kb.internal.EmbeddedGraknTx.getSchemaConcept(EmbeddedGraknTx.java:628)
at ai.grakn.kb.admin.GraknAdmin.getMetaRule(GraknAdmin.java:101)
at ai.grakn.graql.internal.reasoner.rule.RuleUtils.hasRules(RuleUtils.java:62)
at ai.grakn.graql.internal.query.match.MatchInfer.stream(MatchInfer.java:60)
at ai.grakn.graql.internal.query.match.MatchTx.stream(MatchTx.java:51)
at ai.grakn.graql.internal.query.match.AbstractMatch.stream(AbstractMatch.java:69)
at ai.grakn.graql.internal.query.executor.QueryExecutorImpl.run(QueryExecutorImpl.java:72)
at ai.grakn.graql.internal.query.GetQueryImpl.stream(GetQueryImpl.java:65)
at ai.grakn.graql.Query.execute(Query.java:60)
at ai.grakn.engine.controller.GraqlController.executeAndMonitor(GraqlController.java:293)
at ai.grakn.engine.controller.GraqlController.executeQuery(GraqlController.java:280)
at ai.grakn.engine.controller.GraqlController.lambda$executeGraql$5(GraqlController.java:193)
at com.github.rholder.retry.AttemptTimeLimiters$NoAttemptTimeLimit.call(AttemptTimeLimiters.java:78)
at com.github.rholder.retry.Retryer.call(Retryer.java:160)
at ai.grakn.engine.controller.GraqlController.executeFunctionWithRetrying(GraqlController.java:209)
at ai.grakn.engine.controller.GraqlController.executeGraql(GraqlController.java:182)
at spark.RouteImpl$1.handle(RouteImpl.java:61)
at spark.http.matching.Routes.execute(Routes.java:61)
at spark.http.matching.MatcherFilter.doFilter(MatcherFilter.java:126)
at spark.embeddedserver.jetty.JettyHandler.doHandle(JettyHandler.java:50)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:189)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)
at org.eclipse.jetty.server.Server.handle(Server.java:517)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:308)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:261)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Could not successfully complete backend operation due to repeated temporary exceptions after PT10S
at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:101)
at org.janusgraph.diskstorage.util.BackendOperation.execute(BackendOperation.java:55)
at org.janusgraph.diskstorage.BackendTransaction.executeRead(BackendTransaction.java:470)
at org.janusgraph.diskstorage.BackendTransaction.indexQuery(BackendTransaction.java:396)
at org.janusgraph.graphdb.query.graph.MultiKeySliceQuery.execute(MultiKeySliceQuery.java:51)
at org.janusgraph.graphdb.database.IndexSerializer.query(IndexSerializer.java:530)
at org.janusgraph.graphdb.util.SubqueryIterator.(SubqueryIterator.java:66)
… 48 common frames omitted
Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Temporary failure in storage backend
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:161)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:115)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getSlice(AstyanaxKeyColumnValueStore.java:104)
at org.janusgraph.diskstorage.keycolumnvalue.KCVSProxy.getSlice(KCVSProxy.java:77)
at org.janusgraph.diskstorage.keycolumnvalue.KCVSProxy.getSlice(KCVSProxy.java:77)
at org.janusgraph.diskstorage.BackendTransaction$5.call(BackendTransaction.java:399)
at org.janusgraph.diskstorage.BackendTransaction$5.call(BackendTransaction.java:396)
at org.janusgraph.diskstorage.util.BackendOperation.executeDirect(BackendOperation.java:69)
… 54 common frames omitted
Caused by: com.netflix.astyanax.connectionpool.exceptions.NoAvailableHostsException: NoAvailableHostsException: [host=None(0.0.0.0):0, latency=0(0), attempts=0]No hosts to borrow from
at com.netflix.astyanax.connectionpool.impl.RoundRobinExecuteWithFailover.(RoundRobinExecuteWithFailover.java:48)
at com.netflix.astyanax.connectionpool.impl.TokenAwareConnectionPoolImpl.newExecuteWithFailover(TokenAwareConnectionPoolImpl.java:83)
at com.netflix.astyanax.connectionpool.impl.AbstractHostPartitionConnectionPool.executeWithFailover(AbstractHostPartitionConnectionPool.java:352)
at com.netflix.astyanax.thrift.ThriftColumnFamilyQueryImpl$4.execute(ThriftColumnFamilyQueryImpl.java:538)
at org.janusgraph.diskstorage.cassandra.astyanax.AstyanaxKeyColumnValueStore.getNamesSlice(AstyanaxKeyColumnValueStore.java:159)
… 61 common frames omitted

Can anyone help me in solving this ?


#25

Hi @sudhakar,

can you please download and try Grakn 1.4.3?

We have removed the Queue component, so you should not have this problem anymore.


#26

Hi Macro
I tried with latest version(1.4.3) also it is giving same error. Able to start Storage not Engine.


#27

Hey @sudhakar,

please reboot your machine or make sure there are not broken processes still running from your previous attempts of running Grakn 1.3.

With a fresh machine try running 1.4.3 and if it still fails please report what’s printed in logs/grakn.log

Thank you


#28

Hi @macro
As per your suggestion i restarted my system n tried to start Grakn 1.4.3. Now it is throwing below error

Starting Storage…FAILED!
Unable to start Storage.
Process exited with code ‘3’: ‘’
An error has occurred during boot-up. Please run ‘grakn server status’ or check the logs located under the ‘logs’ directory.
Process exited with code ‘3’: ‘’

grakn.log:

2019-02-18 10:42:08,223 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-core-1.4.3
2019-02-18 10:42:08,228 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-core-1.4.3/conf/grakn.properties
2019-02-18 10:42:08,232 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-core-1.4.3
2019-02-18 10:42:08,232 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-core-1.4.3/conf/grakn.properties
2019-02-18 10:42:08,234 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: /home/admin/Softwares/grakn-core-1.4.3
2019-02-18 10:42:08,234 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: /home/admin/Softwares/grakn-core-1.4.3/conf/grakn.properties
2019-02-18 10:42:40,218 [main] ERROR ai.grakn.engine.bootup.GraknBootup - An error has occurred during boot-up. Please run ‘grakn server status’ or check the logs located under the ‘logs’ directory.
ai.grakn.engine.bootup.BootupException: Process exited with code ‘3’: ‘’
at ai.grakn.engine.bootup.StorageBootup.start(StorageBootup.java:157)
at ai.grakn.engine.bootup.StorageBootup.startIfNotRunning(StorageBootup.java:82)
at ai.grakn.engine.bootup.GraknBootup.serverStart(GraknBootup.java:181)
at ai.grakn.engine.bootup.GraknBootup.server(GraknBootup.java:141)
at ai.grakn.engine.bootup.GraknBootup.run(GraknBootup.java:128)
at ai.grakn.engine.bootup.GraknBootup.main(GraknBootup.java:70)

Note : Before starting grakn , if i execute “ls -la /tmp/*.pid” command. Its showing pid file in tmp folder.

o/p of ls -la /tmp/*.pid cmd:

-rw-------. 1 root root 5 Feb 15 15:58 /tmp/grakn-engine.pid


#29

Adding cassandra.log :

INFO [main] 2019-02-18 10:42:34,656 CassandraDaemon.java:480 - JVM vendor/version: OpenJDK 64-Bit Server VM/1.8.0_171
INFO [main] 2019-02-18 10:42:34,658 CassandraDaemon.java:481 - Heap size: 481.500MiB/6.946GiB
INFO [main] 2019-02-18 10:42:34,659 CassandraDaemon.java:486 - Code Cache Non-heap memory: init = 2555904(2496K) used = 4247424(4147K) committed = 4259840(4160K) max = 251658240(245760K)
INFO [main] 2019-02-18 10:42:34,659 CassandraDaemon.java:486 - Metaspace Non-heap memory: init = 0(0K) used = 19832248(19367K) committed = 20316160(19840K) max = -1(-1K)
INFO [main] 2019-02-18 10:42:34,660 CassandraDaemon.java:486 - Compressed Class Space Non-heap memory: init = 0(0K) used = 2299528(2245K) committed = 2490368(2432K) max = 1073741824(1048576K)
INFO [main] 2019-02-18 10:42:34,660 CassandraDaemon.java:486 - PS Eden Space Heap memory: init = 132120576(129024K) used = 116279048(113553K) committed = 132120576(129024K) max = 2753560576(2689024K)
INFO [main] 2019-02-18 10:42:34,660 CassandraDaemon.java:486 - PS Survivor Space Heap memory: init = 21495808(20992K) used = 0(0K) committed = 21495808(20992K) max = 21495808(20992K)
INFO [main] 2019-02-18 10:42:34,661 CassandraDaemon.java:486 - PS Old Gen Heap memory: init = 351272960(343040K) used = 0(0K) committed = 351272960(343040K) max = 5594152960(5463040K)
INFO [main] 2019-02-18 10:42:34,661 CassandraDaemon.java:488 - Classpath: /home/admin/Softwares/grakn-core-1.4.3/services/lib/logback-classic-1.2.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/guava-23.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-2.4.15-indy.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-mapreduce-client-common-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-mapreduce-client-shuffle-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-mapreduce-client-jobclient-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-mapper-asl-1.9.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/chill-java-0.8.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/minlog-1.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/objenesis-2.5.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/xbean-asm5-shaded-4.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-crypto-1.0.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spark-unsafe_2.11-2.2.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/mail-1.4.7.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/lz4-1.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-net-2.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/json4s-ast_2.11-3.2.11.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/scalap-2.11.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javax.annotation-api-1.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-guava-2.22.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/pyrolite-4.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/snappy-java-1.0.5-M3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jts-core-1.15.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jffi-1.2.16-native.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/log4j-over-slf4j-1.7.20.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jcl-over-slf4j-1.7.20.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/json-simple-1.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/airline-0.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/reporter-config3-3.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/reporter-config-base-3.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hibernate-validator-4.3.0.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/ant-launcher-1.7.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/snowball-stemmer-1.3.0.581.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/concurrent-trees-2.4.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jna-4.2.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-pool-1.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/astyanax-cassandra-all-shaded-3.10.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-collections-3.2.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/httpclient-4.5.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-module-scala_2.11-2.9.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-module-paranamer-2.9.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/paranamer-2.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grakn-kb-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-gremlin-3.3.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/ivy-2.4.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jsp-api-2.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/protobuf-java-3.5.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/htrace-core-3.1.0-incubating.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/xml-apis-1.0.b2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/leveldbjni-all-1.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spark-core_2.11-2.2.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/janino-2.7.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-configuration-1.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/snakeyaml-1.18.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javapoet-1.8.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-lang3-3.5.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-logging-1.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/rxjava-1.3.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-groovysh-2.4.15-indy.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-swing-2.4.15.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jline-2.12.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-annotations-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-cli-1.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/xmlenc-0.52.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-httpclient-3.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/gson-2.7.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-auth-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/apacheds-kerberos-codec-2.0.0-M15.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/curator-framework-2.6.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/curator-client-2.7.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/curator-recipes-2.6.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-compress-1.4.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-hdfs-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/asm-commons-5.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/asm-analysis-5.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/asm-util-5.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jnr-posix-3.0.44.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/janusgraph-cassandra-0.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/cassandra-all-3.11.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/java-semver-0.9.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grakn-core-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jsr305-2.0.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/error_prone_annotations-2.0.18.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/j2objc-annotations-1.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/animal-sniffer-annotations-1.14.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/gremlin-core-3.3.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/mjson-1.4.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-annotations-2.9.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-core-2.9.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/scala-library-2.11.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-core-asl-1.9.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/avro-mapred-1.7.7-hadoop2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/avro-ipc-1.7.7.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/avro-ipc-1.7.7-tests.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spark-launcher_2.11-2.2.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spark-tags_2.11-2.2.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/unused-1.0.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spark-network-common_2.11-2.2.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hk2-api-2.4.0-b34.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/aopalliance-repackaged-2.4.0-b34.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javax.inject-2.4.0-b34.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hk2-locator-2.4.0-b34.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-media-jaxb-2.22.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-container-servlet-2.22.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-container-servlet-core-2.22.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/metrics-jvm-3.2.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/metrics-json-3.2.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/metrics-graphite-3.1.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/oro-2.0.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/py4j-0.10.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-all-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/ecj-4.4.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-resolver-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-handler-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/metrics-healthchecks-3.2.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/simpleclient_common-0.0.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/simpleclient_dropwizard-0.0.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spark-core-2.5.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javax.servlet-api-3.1.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jetty-util-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/rocksdbjni-5.14.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/logback-core-1.2.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/gremlin-shaded-3.3.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spark-gremlin-3.3.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/gremlin-groovy-3.3.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-2.4.15.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-yarn-api-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/bcprov-jdk15on-1.51.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-io-2.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-core-1.19.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/metrics-ganglia-3.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/gmetric4j-1.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/dom4j-1.6.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/janusgraph-es-0.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/httpasyncclient-4.1.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-n3-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-model-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-datatypes-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-languages-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-ntriples-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-trix-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/cassandra-driver-core-3.5.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/cassandra-thrift-3.11.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/stax-api-1.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/astyanax-recipes-3.10.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/antlr4-runtime-4.5.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/failsafe-1.0.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grpc-context-1.15.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/opencensus-api-0.12.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grpc-protobuf-lite-1.15.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grpc-stub-1.15.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grpc-netty-1.15.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-codec-http2-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-codec-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-transport-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grakn-graql-shell-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/migration-sql-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/migration-base-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jooq-3.8.5.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grakn-engine-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-console-2.4.15.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-json-2.4.15-indy.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-client-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-common-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jaxb-api-2.2.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/stax-api-1.0-2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/activation-1.1.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-jaxrs-1.9.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-xc-1.9.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javax.inject-1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jettison-1.3.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-mapreduce-client-core-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/java-xmlbuilder-1.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/base64-2.3.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-math3-3.4.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/osgi-resource-locator-1.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-server-2.22.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javax.json-1.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spatial4j-0.7.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/janusgraph-hbase-0.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/antlr-runtime-3.5.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-util-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-api-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-turtle-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-trig-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jffi-1.2.16.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/asm-5.0.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/asm-tree-5.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jnr-x86asm-1.0.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jnr-constants-0.9.9.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/metrics-core-3.2.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/thrift-server-0.3.7.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/disruptor-3.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jflex-1.6.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sigar-1.6.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/astyanax-thrift-3.10.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jsr311-api-1.1.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/guava-retrying-2.0.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hystrix-core-1.5.12.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/opencensus-contrib-grpc-metrics-0.12.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/proto-google-common-protos-1.0.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-buffer-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-handler-proxy-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-codec-socks-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/migration-xml-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/migration-csv-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-csv-1.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/migration-json-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/migration-export-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/metrics-servlets-3.2.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/profiler-1.0.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/simpleclient_servlet-0.0.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/simpleclient-0.0.13.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jetty-server-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/zt-exec-1.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/scala-compiler-2.11.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/slf4j-api-1.7.20.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-compiler-2.7.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/pf4j-1.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grakn-graql-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jcabi-manifests-1.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jcabi-log-0.14.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/exp4j-0.4.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/tinkergraph-gremlin-3.3.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/httpcore-4.4.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-codec-1.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-databind-2.9.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-templates-2.4.15.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-xml-2.4.15.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/groovy-jsr223-2.4.15-indy.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jbcrypt-0.3m.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/caffeine-2.2.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/apacheds-i18n-2.0.0-M15.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/api-asn1-api-1.0.0-M20.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/api-util-1.0.0-M20.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/zookeeper-3.4.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/xz-1.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/xercesImpl-2.9.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-mapreduce-client-app-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-yarn-client-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-yarn-server-common-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/avro-1.7.7.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/chill_2.11-0.8.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/kryo-shaded-3.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/mx4j-3.0.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jul-to-slf4j-1.7.16.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/compress-lzf-1.0.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/RoaringBitmap-0.5.11.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/json4s-jackson_2.11-3.2.11.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/json4s-core_2.11-3.2.11.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-client-2.22.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javax.ws.rs-api-2.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-common-2.22.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/validation-api-1.1.0.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/stream-2.7.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/scala-xml_2.11-1.0.5.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/metrics-graphite-3.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/reflections-0.9.9-RC1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/high-scale-lib-1.1.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/noggit-0.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-text-1.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/elasticsearch-rest-client-6.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/httpcore-nio-4.4.5.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/sesame-rio-rdfxml-2.7.10.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jnr-ffi-2.1.7.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/antlr-3.5.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jamm-0.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/joda-time-2.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/ohc-core-0.4.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/ohc-core-j8-0.4.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jctools-core-1.2.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/uuid-3.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/astyanax-cassandra-3.10.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jersey-client-1.19.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/archaius-core-0.4.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/HdrHistogram-2.1.9.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grpc-protobuf-1.15.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grpc-core-1.15.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-codec-http-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-common-4.1.30.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jetty-http-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jetty-io-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jetty-webapp-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jetty-security-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/websocket-api-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/websocket-client-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/websocket-servlet-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jackson-dataformat-yaml-2.9.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grakn-factory-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/scala-parser-combinators_2.11-1.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/grakn-dist-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/commons-lang-2.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javatuples-1.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hppc-0.7.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/scala-reflect-2.11.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hadoop-yarn-common-2.7.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/spark-network-shuffle_2.11-2.2.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jets3t-0.9.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/hk2-utils-2.4.0-b34.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/javassist-3.16.1-GA.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/janusgraph-hadoop-0.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/janusgraph-core-0.3.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/concurrentlinkedhashmap-lru-1.4.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/ST4-4.0.8.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jboss-logging-3.1.0.CR2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/libthrift-0.9.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/ant-1.7.0.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/astyanax-core-3.10.2.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/org.abego.treelayout.core-1.0.1.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/client-java-1.4.3.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jetty-xml-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/jetty-servlet-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/websocket-server-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/websocket-common-9.3.6.v20151106.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/high-scale-lib-1.0.6.jar:/home/admin/Softwares/grakn-core-1.4.3/services/lib/netty-tcnative-boringssl-static-2.0.14.Final.jar:/home/admin/Softwares/grakn-core-1.4.3/services/cassandra
INFO [main] 2019-02-18 10:42:34,662 CassandraDaemon.java:490 - JVM Arguments: [-Dlogback.configurationFile=/home/admin/Softwares/grakn-core-1.4.3/services/cassandra/logback.xml, -Dcassandra.logdir=/home/admin/Softwares/grakn-core-1.4.3/./logs, -Dcassandra-pidfile=/tmp/grakn-storage.pid, -Dcassandra.superuser_setup_delay_ms=0, -Dcassandra.jmx.local.port=7199, -XX:+CrashOnOutOfMemoryError]
WARN [main] 2019-02-18 10:42:34,762 NativeLibrary.java:187 - Unable to lock JVM memory (ENOMEM). This can result in part of the JVM being swapped out, especially with mmapped I/O enabled. Increase RLIMIT_MEMLOCK or run Cassandra as root.
WARN [main] 2019-02-18 10:42:34,762 StartupChecks.java:136 - jemalloc shared library could not be preloaded to speed up memory allocations
WARN [main] 2019-02-18 10:42:34,762 StartupChecks.java:169 - JMX is not enabled to receive remote connections. Please see cassandra-env.sh for more info.
INFO [main] 2019-02-18 10:42:34,766 SigarLibrary.java:44 - Initializing SIGAR library
INFO [main] 2019-02-18 10:42:34,794 SigarLibrary.java:57 - Could not initialize SIGAR library org.hyperic.sigar.Sigar.getFileSystemListNative()[Lorg/hyperic/sigar/FileSystem;
INFO [main] 2019-02-18 10:42:34,794 SigarLibrary.java:185 - Sigar could not be initialized, test for checking degraded mode omitted.
WARN [main] 2019-02-18 10:42:34,801 StartupChecks.java:311 - Maximum number of memory map areas per process (vm.max_map_count) 65530 is too low, recommended value: 1048575, you can change it with sysctl.
ERROR [main] 2019-02-18 10:42:35,055 CassandraDaemon.java:708 - Unable to verify sstable files on disk
java.nio.file.AccessDeniedException: db/cassandra/data/grakn
at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102)
at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107)
at sun.nio.fs.UnixFileSystemProvider.newDirectoryStream(UnixFileSystemProvider.java:427)
at java.nio.file.Files.newDirectoryStream(Files.java:457)
at java.nio.file.FileTreeWalker.visit(FileTreeWalker.java:300)
at java.nio.file.FileTreeWalker.next(FileTreeWalker.java:372)
at java.nio.file.Files.walkFileTree(Files.java:2706)
at java.nio.file.Files.walkFileTree(Files.java:2742)
at org.apache.cassandra.service.StartupChecks$9.execute(StartupChecks.java:390)
at org.apache.cassandra.service.StartupChecks.verify(StartupChecks.java:125)
at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:200)
at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:602)
at ai.grakn.engine.bootup.GraknCassandra.main(GraknCassandra.java:39)


#30

@sudhakar you can see here that Cassandra throws an AccessDenied exception,

are you sure you have given grakn the right permission to write to that folder? db/cassandra/data/grakn

Your errors seem to be related to write permissions on folders.
Maybe try running grakn in a non-admin directory just to make sure it starts successfully.


#31

Hi @macro
I tried to run grakn with root user, able to start Storage but not Engine.

[root@VSOLSOCH101 grakn-core-1.4.3]# ./grakn server start

  ________  _____     _______  __    __  __    __      _______  _______  _____     _______
 |   __   ||   _  \  |   _   ||  |  /  /|  \  |  |    |   _   ||   _   ||   _  \  |   ____|
 |  |  |__||  | |  | |  | |  ||  | /  / |   \ |  |    |  | |__||  | |  ||  | |  | |  |
 |  | ____ |  |_| /  |  |_|  ||  |/  /  |    \|  |    |  |     |  | |  ||  |_| /  |  |____
 |  ||_   ||   _  \  |   _   ||   _  \  |   _    |    |  |  __ |  | |  ||   _  \  |   ____|
 |  |__|  ||  | \  \ |  | |  ||  | \  \ |  | \   |    |  |_|  ||  |_|  ||  | \  \ |  |____
 |________||__|  \__\|__| |__||__|  \__\|__|  \__|    |_______||_______||__|  \__\|_______|

                                     THE KNOWLEDGE GRAPH

====================================================================================================

Starting Storage…SUCCESS
Starting Engine…FAILED!
Unable to start Engine.

If i run same zip file(1.4.3) in another vm its working perfectly fine. Is there any changes i have to make in my system to run grakn?


#32

@sudhakar Well without the grakn.log we can’t help you. Please share. Or join our Slack channel to chat directly with uts


#33

@macro uploaded both grakn.log and cassandra.log. PFA.

grakn.log (2.7 KB)

cassandra.log (49.2 KB)


#34

No errors in the log. grakn.log says Grakn is up and running.

Restart the machine and run grakn as root, everything seems to be working this time


#35

Hi,

I am getting this error to do with the engine when trying to start the grakn core:

====================================================================================================
________ _____ _______ __ __ __ __ _______ _______ _____ _______
| __ || _ \ | _ || | / /| \ | | | _ || _ || _ \ | |
| | ||| | | | | | | || | / / | \ | | | | ||| | | || | | | | |
| | ____ | |
| / | |
| || |/ / | | | | | | | | || |
| / | |
___
| ||_ || _ \ | _ || _ \ | _ | | | __ | | | || _ \ | |
| |__| || | \ \ | | | || | \ \ | | \ | | |
| || |
| || | \ \ | |
__
|||| __|| |||| _|__| _| |||||__| _|______|

                                     THE KNOWLEDGE GRAPH

====================================================================================================

Storage is already running
Starting Engine…FAILED!
Unable to start Engine.
Process exited with code ‘1’: ‘’
An error has occurred during boot-up. Please run ‘grakn server status’ or check the logs located under the ‘logs’ directory.
Process exited with code ‘1’: ‘’


  1. Grakn version: 1.4.3

  2. Operating system: Windows 10 Professional

  3. I downloaded Grakn manually from the zip folder.

  4. Tried to start the server using ./grakn server start

  5. Storage running but Engine Failed.

  6. Here are the logs:

2019-03-05 14:51:45,953 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3
2019-03-05 14:51:45,969 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3\conf\grakn.properties
2019-03-05 14:51:45,969 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3
2019-03-05 14:51:45,969 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3\conf\grakn.properties
2019-03-05 14:55:43,203 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3
2019-03-05 14:55:43,219 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3\conf\grakn.properties
2019-03-05 14:55:43,219 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3
2019-03-05 14:55:43,219 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3\conf\grakn.properties
2019-03-05 14:55:43,219 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3
2019-03-05 14:55:43,219 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3\conf\grakn.properties
2019-03-05 14:55:44,937 [main] INFO ai.grakn.engine.GraknConfig - Project directory in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3
2019-03-05 14:55:44,937 [main] INFO ai.grakn.engine.GraknConfig - Configuration file in use: C:\Users\U89580\Documents\Data Science Training Notes and Sources\Useful Sources\Grakn\grakn-core-1.4.3\conf\grakn.properties
2019-03-05 14:55:44,999 [main] ERROR ai.grakn.engine.bootup.Grakn - Uncaught exception at thread [main]
java.lang.ExceptionInInitializerError: null
at org.rocksdb.RocksDB.loadLibrary(RocksDB.java:64)
at org.rocksdb.RocksDB.(RocksDB.java:35)
at org.rocksdb.Options.(Options.java:25)
at ai.grakn.engine.attribute.deduplicator.queue.RocksDbQueue.(RocksDbQueue.java:61)
at ai.grakn.engine.attribute.deduplicator.AttributeDeduplicatorDaemonImpl.(AttributeDeduplicatorDaemonImpl.java:77)
at ai.grakn.engine.ServerFactory.createServer(ServerFactory.java:70)
at ai.grakn.engine.bootup.Grakn.main(Grakn.java:62)
Caused by: java.lang.UnsupportedOperationException: Cannot determine JNI library name for ARCH=‘x86’ OS=‘windows 10’ name=‘rocksdb’
at org.rocksdb.util.Environment.getJniLibraryName(Environment.java:78)
at org.rocksdb.NativeLibraryLoader.(NativeLibraryLoader.java:19)
… 7 common frames omitted
2019-03-05 14:55:45,937 [main] ERROR ai.grakn.engine.bootup.GraknBootup - An error has occurred during boot-up. Please run ‘grakn server status’ or check the logs located under the ‘logs’ directory.
ai.grakn.engine.bootup.BootupException: Process exited with code ‘1’: ‘’
at ai.grakn.engine.bootup.EngineBootup.start(EngineBootup.java:146)
at ai.grakn.engine.bootup.EngineBootup.startIfNotRunning(EngineBootup.java:80)
at ai.grakn.engine.bootup.GraknBootup.serverStart(GraknBootup.java:182)
at ai.grakn.engine.bootup.GraknBootup.server(GraknBootup.java:141)
at ai.grakn.engine.bootup.GraknBootup.run(GraknBootup.java:128)
at ai.grakn.engine.bootup.GraknBootup.main(GraknBootup.java:70)

Any help would be very appreciated, Thanks!

Kieran


#36

Hi @kieranv96,

it looks like you’re running java 32bit, (ARCH=‘x86’) from:

Caused by: java.lang.UnsupportedOperationException: Cannot determine JNI library name for ARCH=‘x86’ OS=‘windows 10’ name=‘rocksdb’

can you check if you have java 64bit with java -version.

If it’s 32bit please update to java 1.8 64bit

Marco


#37

Hi Marco,

Thank you for your reply. Running -java version gives this:

C:\Users\U89580>java -version
java version “1.8.0_201”
Java™ SE Runtime Environment (build 1.8.0_201-b09)
Java HotSpot™ Client VM (build 25.201-b09, mixed mode)

I’m not sure if this is 32bit or 64bit? However, I did just install java 64bit through the java website just to make sure it is on my system and I am still getting the same error with the engine failing on startup.

Thanks,

Kieran


#38

The output of java -version should mention 64-bit otherwise it’s 32 bit, example:

java version "1.8.0_152"
Java(TM) SE Runtime Environment (build 1.8.0_152-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.152-b16, mixed mode)

Remove current version and install 64bit, (verify using java -version), reboot your machine and try again


#39

Hi Marco,

Success! I am no longer getting the error. Thank you very much for your help on this :slight_smile:

Best,

Kieran