Jyotirmoy Sinha created HDDS-11350:
--------------------------------------
Summary: NullPointerException thrown on checking container
balancer status
Key: HDDS-11350
URL: https://issues.apache.org/jira/browse/HDDS-11350
Project: Apache Ozone
Issue Type: Bug
Components: Balancer
Reporter: Jyotirmoy Sinha
Scenario - Run container balancer when there is no data in the cluster.
Error stacktrace -
{code:java}
# /opt/cloudera/parcels/CDH/bin/ozone admin containerbalancer start -t 1 -d
100
Container Balancer started successfully.
# /opt/cloudera/parcels/CDH/bin/ozone admin containerbalancer status
24/08/21 14:14:30 INFO retry.RetryInvocationHandler:
com.google.protobuf.ServiceException:
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
java.lang.NullPointerException
at
org.apache.hadoop.hdds.scm.container.balancer.ContainerBalancerTask.getCurrentIterationsStatistic(ContainerBalancerTask.java:353)
at
org.apache.hadoop.hdds.scm.container.balancer.ContainerBalancer.getBalancerStatusInfo(ContainerBalancer.java:191)
at
org.apache.hadoop.hdds.scm.server.SCMClientProtocolServer.getContainerBalancerStatusInfo(SCMClientProtocolServer.java:1213)
at
org.apache.hadoop.hdds.scm.protocol.StorageContainerLocationProtocolServerSideTranslatorPB.getContainerBalancerStatusInfo(StorageContainerLocationProtocolServerSideTranslatorPB.java:1210)
at
org.apache.hadoop.hdds.scm.protocol.StorageContainerLocationProtocolServerSideTranslatorPB.processRequest(StorageContainerLocationProtocolServerSideTranslatorPB.java:608)
at
org.apache.hadoop.hdds.server.OzoneProtocolMessageDispatcher.processRequest(OzoneProtocolMessageDispatcher.java:89)
at
org.apache.hadoop.hdds.scm.protocol.StorageContainerLocationProtocolServerSideTranslatorPB.submitRequest(StorageContainerLocationProtocolServerSideTranslatorPB.java:233)
at
org.apache.hadoop.hdds.protocol.proto.StorageContainerLocationProtocolProtos$StorageContainerLocationProtocolService$2.callBlockingMethod(StorageContainerLocationProtocolProtos.java)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:533)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:994)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:922)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/javax.security.auth.Subject.doAs(Subject.java:423)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1899)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2899)
, while invoking $Proxy20.submitRequest over
nodeId=node1,nodeAddress=ccycloud-1.quasar-ypdsqw.root.comops.site/10.140.49.132:9860
after 2 failover attempts. Trying to failover after sleeping for 2000ms.
24/08/21 14:14:34 INFO retry.RetryInvocationHandler:
com.google.protobuf.ServiceException:
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
java.lang.NullPointerException
at
org.apache.hadoop.hdds.scm.container.balancer.ContainerBalancerTask.getCurrentIterationsStatistic(ContainerBalancerTask.java:353)
at
org.apache.hadoop.hdds.scm.container.balancer.ContainerBalancer.getBalancerStatusInfo(ContainerBalancer.java:191)
at
org.apache.hadoop.hdds.scm.server.SCMClientProtocolServer.getContainerBalancerStatusInfo(SCMClientProtocolServer.java:1213)
at
org.apache.hadoop.hdds.scm.protocol.StorageContainerLocationProtocolServerSideTranslatorPB.getContainerBalancerStatusInfo(StorageContainerLocationProtocolServerSideTranslatorPB.java:1210)
at
org.apache.hadoop.hdds.scm.protocol.StorageContainerLocationProtocolServerSideTranslatorPB.processRequest(StorageContainerLocationProtocolServerSideTranslatorPB.java:608)
at
org.apache.hadoop.hdds.server.OzoneProtocolMessageDispatcher.processRequest(OzoneProtocolMessageDispatcher.java:89)
at
org.apache.hadoop.hdds.scm.protocol.StorageContainerLocationProtocolServerSideTranslatorPB.submitRequest(StorageContainerLocationProtocolServerSideTranslatorPB.java:233)
at
org.apache.hadoop.hdds.protocol.proto.StorageContainerLocationProtocolProtos$StorageContainerLocationProtocolService$2.callBlockingMethod(StorageContainerLocationProtocolProtos.java)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:533)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1070)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:994)
at org.apache.hadoop.ipc.Server$RpcCall.run(Server.java:922)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at java.base/javax.security.auth.Subject.doAs(Subject.java:423)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1899)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2899)
, while invoking $Proxy20.submitRequest over
nodeId=node1,nodeAddress=ccycloud-1.quasar-ypdsqw.root.comops.site/10.140.49.132:9860
after 4 failover attempts. Trying to failover after sleeping for 2000ms.
24/08/21 14:14:36 INFO retry.RetryInvocationHandler:
com.google.protobuf.ServiceException:
org.apache.hadoop.ipc.RemoteException(java.lang.NullPointerException):
java.lang.NullPointerException {code}
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