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Re: org.janusgraph.diskstorage.locking.TemporaryLockingException: Temporary locking failure

Ankur Goel <ankur...@...>
 

Just to update problem got resolved, i was using without:


mgmt.setConsistency(leadidCUniqueIndex, ConsistencyModifier.LOCK);


After removing, this works like charms earlier in adding 300 vertex we were having this problem very frequently. isnt this strange for single node embedded configuration (cassandra + es) this is affecting too much.


Learning is:having unique index is suicidal in janus. Is there any other way if needs to use unique index. Luckily we handled unique thing through application.


~AnkurG

 


On Wednesday, September 6, 2017 at 7:44:38 PM UTC+5:30, Ankur Goel wrote:
We are using single node Janusgraph instance with embeded (cassandra and es).

While adding multiple vertex getting following exception:

org.janusgraph.diskstorage.locking.TemporaryLockingException: Temporary locking failure

      at org.janusgraph.diskstorage.locking.AbstractLocker.writeLock(AbstractLocker.java:309)

      at org.janusgraph.diskstorage.locking.consistentkey.ExpectedValueCheckingStore.acquireLock(ExpectedValueCheckingStore.java:103)

      at org.janusgraph.diskstorage.keycolumnvalue.KCVSProxy.acquireLock(KCVSProxy.java:52)

      at org.janusgraph.diskstorage.BackendTransaction.acquireIndexLock(BackendTransaction.java:255)

      at org.janusgraph.graphdb.database.StandardJanusGraph.prepareCommit(StandardJanusGraph.java:565)

      at org.janusgraph.graphdb.database.StandardJanusGraph.commit(StandardJanusGraph.java:713)

      at org.janusgraph.graphdb.transaction.StandardJanusGraphTx.commit(StandardJanusGraphTx.java:1363)

      at com.test.ankur.janusgraph.serviceImpl.VerticesServiceImpl.addLeads(VerticesServiceImpl.java:113)

      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

      at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

      at java.lang.reflect.Method.invoke(Unknown Source)

      at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)

      at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)

      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)

      at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)

      at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)

      at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)

      at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)

      at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)

      at com.sun.proxy.$Proxy39.addLeads(Unknown Source)

      at com.test.ankur.janusgraph.mains.AppMain.main(AppMain.java:48)

Caused by: org.janusgraph.diskstorage.TemporaryBackendException: Lock write retry count exceeded

      at org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker.writeSingleLock(ConsistentKeyLocker.java:339)

      at org.janusgraph.diskstorage.locking.consistentkey.ConsistentKeyLocker.writeSingleLock(ConsistentKeyLocker.java:123)

      at org.janusgraph.diskstorage.locking.AbstractLocker.writeLock(AbstractLocker.java:304)

      ... 21 more


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