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https://issues.apache.org/jira/browse/CASSANDRA-12735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16067097#comment-16067097
]
Bing Wu commented on CASSANDRA-12735:
-------------------------------------
I ran into similar situation before. What I found out was
1. The cache refresh rate may be set too high. Cache refresh is done under
SUPERUSER and requires a QUORUM CL.
2. Frequent localized GC spike may delay response to QUORUM request for
refreshing
My suggestion is -
1. See whether the error happened around the same time when there was a spike
of GC
2. If so, put your focus on why GC is happening - during Young Generation
thrashing or moving to Tenured or whatever. Fix that problem will carry you a
long way
3. If you can afford it, stretch out refresh rate as long as possible
Hope this helps,
Bing
> org.apache.cassandra.exceptions.ReadTimeoutException: Operation timed out
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-12735
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12735
> Project: Cassandra
> Issue Type: Bug
> Components: Configuration, Core, Materialized Views
> Environment: Python 2.7.11, Datastax Cassandra 3.7.0
> Reporter: Rajesh Radhakrishnan
> Fix For: 3.7
>
>
> We got a cluster of two nodes running Cassandra.3.7.0 and using client
> running Python 2.7.11 injecting lot of data from maybe 100 or so jobs.
> ------------------------------------------------------------------------------------------
> Cache setting can be seen from system.log:
> INFO [main] 2016-09-30 15:12:50,002 AuthCache.java:172 - (Re)initializing
> CredentialsCache (validity period/update interval/max entries)
> (2000/2000/1000)
> INFO [SharedPool-Worker-1] 2016-09-30 15:15:09,561 AuthCache.java:172 -
> (Re)initializing PermissionsCache (validity period/update interval/max
> entries) (10000/10000/1000)
> INFO [SharedPool-Worker-1] 2016-09-30 15:15:24,319 AuthCache.java:172 -
> (Re)initializing RolesCache (validity period/update interval/max entries)
> (5000/5000/1000)
> ===========================================================
> But I am getting the following exception :
> ERROR [SharedPool-Worker-90] 2016-09-30 15:17:20,883 ErrorMessage.java:338 -
> Unexpected exception during request
> com.google.common.util.concurrent.UncheckedExecutionException:
> com.google.common.util.concurrent.UncheckedExecutionException:
> java.lang.RuntimeException:
> org.apache.cassandra.exceptions.ReadTimeoutException: Operation timed out -
> received only 0 responses.
> at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2203)
> ~[guava-18.0.jar:na]
> at com.google.common.cache.LocalCache.get(LocalCache.java:3937)
> ~[guava-18.0.jar:na]
> at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941)
> ~[guava-18.0.jar:na]
> at
> com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)
> ~[guava-18.0.jar:na]
> at org.apache.cassandra.auth.AuthCache.get(AuthCache.java:108)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.PermissionsCache.getPermissions(PermissionsCache.java:45)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.AuthenticatedUser.getPermissions(AuthenticatedUser.java:104)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.ClientState.authorize(ClientState.java:375)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.ClientState.checkPermissionOnResourceChain(ClientState.java:308)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.ClientState.ensureHasPermission(ClientState.java:285)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.ClientState.hasAccess(ClientState.java:272)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.ClientState.hasColumnFamilyAccess(ClientState.java:256)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.cql3.statements.ModificationStatement.checkAccess(ModificationStatement.java:211)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.cql3.statements.BatchStatement.checkAccess(BatchStatement.java:137)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.cql3.QueryProcessor.processBatch(QueryProcessor.java:502)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.cql3.QueryProcessor.processBatch(QueryProcessor.java:495)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.transport.messages.BatchMessage.execute(BatchMessage.java:217)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:507)
> [apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:401)
> [apache-cassandra-3.7.0.jar:3.7.0]
> at
> io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
> [netty-all-4.0.36.Final.jar:4.0.36.Final]
> at
> io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:292)
> [netty-all-4.0.36.Final.jar:4.0.36.Final]
> at
> io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:32)
> [netty-all-4.0.36.Final.jar:4.0.36.Final]
> at
> io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:283)
> [netty-all-4.0.36.Final.jar:4.0.36.Final]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> [na:1.8.0_73]
> at
> org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:164)
> [apache-cassandra-3.7.0.jar:3.7.0]
> at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:105)
> [apache-cassandra-3.7.0.jar:3.7.0]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_73]
> Caused by: com.google.common.util.concurrent.UncheckedExecutionException:
> java.lang.RuntimeException:
> org.apache.cassandra.exceptions.ReadTimeoutException: Operation timed out -
> received only 0 responses.
> at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2203)
> ~[guava-18.0.jar:na]
> at com.google.common.cache.LocalCache.get(LocalCache.java:3937)
> ~[guava-18.0.jar:na]
> at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941)
> ~[guava-18.0.jar:na]
> at
> com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824)
> ~[guava-18.0.jar:na]
> at org.apache.cassandra.auth.AuthCache.get(AuthCache.java:108)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at org.apache.cassandra.auth.RolesCache.getRoles(RolesCache.java:44)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at org.apache.cassandra.auth.Roles.hasSuperuserStatus(Roles.java:51)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.AuthenticatedUser.isSuper(AuthenticatedUser.java:71)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.CassandraAuthorizer.authorize(CassandraAuthorizer.java:86)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.PermissionsCache.lambda$new$1(PermissionsCache.java:37)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at org.apache.cassandra.auth.AuthCache$1.load(AuthCache.java:183)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
> ~[guava-18.0.jar:na]
> at
> com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)
> ~[guava-18.0.jar:na]
> at
> com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
> ~[guava-18.0.jar:na]
> at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197)
> ~[guava-18.0.jar:na]
> ... 26 common frames omitted
> Caused by: java.lang.RuntimeException:
> org.apache.cassandra.exceptions.ReadTimeoutException: Operation timed out -
> received only 0 responses.
> at
> org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:489)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.CassandraRoleManager.getRoles(CassandraRoleManager.java:269)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.RolesCache.lambda$new$195(RolesCache.java:36)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at org.apache.cassandra.auth.AuthCache$1.load(AuthCache.java:183)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
> ~[guava-18.0.jar:na]
> at
> com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319)
> ~[guava-18.0.jar:na]
> at
> com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
> ~[guava-18.0.jar:na]
> at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197)
> ~[guava-18.0.jar:na]
> ... 40 common frames omitted
> Caused by: org.apache.cassandra.exceptions.ReadTimeoutException: Operation
> timed out - received only 0 responses.
> at
> org.apache.cassandra.service.ReadCallback.awaitResults(ReadCallback.java:132)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at org.apache.cassandra.service.ReadCallback.get(ReadCallback.java:137)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.AbstractReadExecutor.get(AbstractReadExecutor.java:145)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.StorageProxy$SinglePartitionReadLifecycle.awaitResultsAndRetryOnDigestMismatch(StorageProxy.java:1714)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.StorageProxy.fetchRows(StorageProxy.java:1663)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.StorageProxy.readRegular(StorageProxy.java:1604)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.service.StorageProxy.read(StorageProxy.java:1523)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.db.SinglePartitionReadCommand$Group.execute(SinglePartitionReadCommand.java:979)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:273)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.cql3.statements.SelectStatement.execute(SelectStatement.java:234)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.CassandraRoleManager.getRoleFromTable(CassandraRoleManager.java:497)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> at
> org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:485)
> ~[apache-cassandra-3.7.0.jar:3.7.0]
> ... 47 common frames omitted
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