Check logs in your nodes, there could be GC or other issues causing timeouts. This can happen for various reasons, network blips, node down, node over loaded etc.
On Thu, Jun 7, 2018 at 6:16 AM, Saurav Suman <saurav.su...@widas.in> wrote: > Hi Team, > > > I am getting below error in all the nodes of cassandra . Can anyone let me > know what could be the cause. I am using apache cassandra 3.0.10. > > > > Jun 06, 2018 2:59:04 PM com.google.common.cache.LocalCache$Segment$1 run > WARNING: Exception thrown during refresh > java.util.concurrent.ExecutionException: java.lang.RuntimeException: > org.apache.cassandra.exceptions.ReadTimeoutException: Operation timed out > - received only 0 responses. > at com.google.common.util.concurrent.AbstractFuture$ > Sync.getValue(AbstractFuture.java:299) > at com.google.common.util.concurrent.AbstractFuture$ > Sync.get(AbstractFuture.java:286) > at com.google.common.util.concurrent.AbstractFuture.get( > AbstractFuture.java:116) > at com.google.common.util.concurrent.Uninterruptibles. > getUninterruptibly(Uninterruptibles.java:137) > at com.google.common.cache.LocalCache$Segment. > getAndRecordStats(LocalCache.java:2348) > at com.google.common.cache.LocalCache$Segment$1.run( > LocalCache.java:2331) > at com.google.common.util.concurrent.MoreExecutors$ > DirectExecutor.execute(MoreExecutors.java:457) > at com.google.common.util.concurrent.ExecutionList. > executeListener(ExecutionList.java:156) > at com.google.common.util.concurrent.ExecutionList. > execute(ExecutionList.java:145) > at com.google.common.util.concurrent.AbstractFuture. > setException(AbstractFuture.java:202) > at com.google.common.util.concurrent.Futures$ > ChainingListenableFuture.run(Futures.java:902) > at com.google.common.util.concurrent.MoreExecutors$ > DirectExecutor.execute(MoreExecutors.java:457) > at com.google.common.util.concurrent.ExecutionList. > executeListener(ExecutionList.java:156) > at com.google.common.util.concurrent.ExecutionList. > execute(ExecutionList.java:145) > at com.google.common.util.concurrent.ListenableFutureTask.done( > ListenableFutureTask.java:91) > at java.util.concurrent.FutureTask.finishCompletion( > FutureTask.java:384) > at java.util.concurrent.FutureTask.setException(FutureTask.java:251) > at java.util.concurrent.FutureTask.run(FutureTask.java:271) > at java.util.concurrent.ThreadPoolExecutor.runWorker( > ThreadPoolExecutor.java:1149) > at java.util.concurrent.ThreadPoolExecutor$Worker.run( > ThreadPoolExecutor.java:624) > at org.apache.cassandra.concurrent.NamedThreadFactory. > lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79) > at java.lang.Thread.run(Thread.java:748) > 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:516) > at org.apache.cassandra.auth.CassandraRoleManager.isSuper( > CassandraRoleManager.java:305) > at org.apache.cassandra.auth.Roles.hasSuperuserStatus(Roles.java:52) > at org.apache.cassandra.auth.AuthenticatedUser.isSuper( > AuthenticatedUser.java:71) > at org.apache.cassandra.auth.CassandraAuthorizer.authorize( > CassandraAuthorizer.java:76) > at org.apache.cassandra.auth.PermissionsCache$1$1.call( > PermissionsCache.java:136) > at org.apache.cassandra.auth.PermissionsCache$1$1.call( > PermissionsCache.java:131) > at java.util.concurrent.FutureTask.run(FutureTask.java:266) > ... 4 more > > > > *Saurav Suman* > BigData Consultant > Email- saurav.su...@widas.in > <http://www.widas.de/> > *WidasConcepts India Pvt. Ltd* > UNIT II, SJR HUB, Sarjapur Road > Bellandur, Bangalore 560103 > >
