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Ronali Pradhan (RonaliP9)
NCS Pte. Ltd
Application Developer
NCS Pte. Ltd
SG
RonaliP9 Member since 2013 14 posts
NCS Pte. Ltd
Posted: June 25, 2020
Last activity: July 25, 2020

Cassandra Exception in pega logs

Hi Everyone,

Currently, we are getting the below exception in pega logs of our SIT environment.I appreciate, any suggestion to resolve the issue.

9,639 ERROR [stderr] (ADM_Pulse_Executor_54) Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (no host was tried) 19:39:59,639 ERROR [stderr] (ADM_Pulse_Executor_54)     at com.datastax.driver.core.RequestHandler.reportNoMoreHosts(RequestHandler.java:211) 19:39:59,639 ERROR [stderr] (ADM_Pulse_Executor_54)     at com.datastax.driver.core.RequestHandler.access$1000(RequestHandler.java:46) 19:39:59,639 ERROR [stderr] (ADM_Pulse_Executor_54)     at com.datastax.driver.core.RequestHandler$SpeculativeExecution.findNextHostAndQuery(RequestHandler.java:275) 19:39:59,639 ERROR [stderr] (ADM_Pulse_Executor_54)     at com.datastax.driver.core.RequestHandler.startNewExecution(RequestHandler.java:115) 19:39:59,639 ERROR [stderr] (ADM_Pulse_Executor_54)     at com.datastax.driver.core.RequestHandler.sendRequest(RequestHandler.java:95) 19:39:59,639 ERROR [stderr] (ADM_Pulse_Executor_54)     at com.datastax.driver.core.SessionManager.executeAsync(SessionManager.java:132) 19:39:59,639 ERROR [stderr] (ADM_Pulse_Executor_54)     ... 14 more 19:40:05,241 ERROR [com.datastax.driver.core.ControlConnection] (cluster9-reconnection-1) [Control connection] Cannot connect to any host, scheduling retry in 30000 milliseconds 19:40:12,777 ERROR [com.pega.dsm.dnode.api.SystemAuthReplicationFactorUpdater] (DDS.Default-Pulse:113) Exception thrown while updating system_auth replication factor: com.pega.dsm.dnode.impl.cassandra.CassandraManagementException: Unable to retrieve all node list from Cassandra JMX         at com.pega.dsm.dnode.impl.cassandra.CassandraManagement.getAllNodes(CassandraManagement.java:368)         at com.pega.dsm.dnode.api.SystemAuthReplicationFactorUpdater.getNumberOfNodes(SystemAuthReplicationFactorUpdater.java:59)         at com.pega.dsm.dnode.api.SystemAuthReplicationFactorUpdater.run(SystemAuthReplicationFactorUpdater.java:38)         at com.pega.dsm.dnode.api.RecurringOperationInvoker.invokeIfNeeded(RecurringOperationInvoker.java:30)         at com.pega.dsm.dnode.api.DdsService$DDSPulseOperation.lambda$pulse$0(DdsService.java:683)         at com.pega.dsm.dnode.impl.stream.DataObservableImpl$SafeDataSubscriber.subscribe(DataObservableImpl.java:338)         at com.pega.dsm.dnode.impl.stream.DataObservableImpl.subscribe(DataObservableImpl.java:40)         at com.pega.dsm.dnode.impl.stream.DataObservableImpl.await(DataObservableImpl.java:102)         at com.pega.dsm.dnode.impl.stream.DataObservableImpl.await(DataObservableImpl.java:91)         at com.pega.dsm.dnode.impl.prpc.service.health.ServiceHealthCheckRegistration$1.run(ServiceHealthCheckRegistration.java:106)         at com.pega.dsm.dnode.impl.prpc.service.health.ServiceHealthCheckRegistration$1.run(ServiceHealthCheckRegistration.java:97)         at com.pega.dsm.dnode.util.PrpcRunnable.execute(PrpcRunnable.java:52)         at com.pega.dsm.dnode.impl.prpc.service.ServiceHelper.executeInPrpcContextInternal(ServiceHelper.java:259)         at com.pega.dsm.dnode.impl.prpc.service.ServiceHelper.executeInPrpcContext(ServiceHelper.java:108)         at com.pega.dsm.dnode.impl.prpc.service.health.ServiceHealthCheckRegistration.lambda$registerPulseExecutor$0(ServiceHealthCheckRegistration.java:97)         at com.google.common.util.concurrent.MoreExecutors$ScheduledListeningDecorator$NeverSuccessfulListenableFutureTask.run(MoreExecutors.java:656)         at java.util.concurrent.Executors$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 com.pega.dsm.dnode.util.PrpcRunnable$1.run(PrpcRu

 

 

Thanks in Advance Ronali

Pega Platform 8.3 System Administration Government System Architect