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<mailto:saurav.su...@widas.in> <http://www.widas.de/> WidasConcepts India Pvt. Ltd UNIT II, SJR HUB, Sarjapur Road Bellandur, Bangalore 560103