Yesha Vora created YARN-8409:
--------------------------------
Summary: ActiveStandbyElectorBasedElectorService is failing with
NPE
Key: YARN-8409
URL: https://issues.apache.org/jira/browse/YARN-8409
Project: Hadoop YARN
Issue Type: Bug
Affects Versions: 3.1.1
Reporter: Yesha Vora
In RM-HA env, kill ZK leader and then perform RM failover.
Sometimes, active RM gets NPE and fail to come up successfully
{code:java}
2018-06-08 10:31:03,007 INFO client.ZooKeeperSaslClient
(ZooKeeperSaslClient.java:run(289)) - Client will use GSSAPI as SASL mechanism.
2018-06-08 10:31:03,008 INFO zookeeper.ClientCnxn
(ClientCnxn.java:logStartConnect(1019)) - Opening socket connection to server
xxx/xxx:2181. Will attempt to SASL-authenticate using Login Context section
'Client'
2018-06-08 10:31:03,009 WARN zookeeper.ClientCnxn (ClientCnxn.java:run(1146))
- Session 0x0 for server null, unexpected error, closing socket connection and
attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at
org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1125)
2018-06-08 10:31:03,344 INFO service.AbstractService
(AbstractService.java:noteFailure(267)) - Service
org.apache.hadoop.yarn.server.resourcemanager.ActiveStandbyElectorBasedElectorService
failed in state INITED
java.lang.NullPointerException
at
org.apache.hadoop.ha.ActiveStandbyElector$3.run(ActiveStandbyElector.java:1033)
at
org.apache.hadoop.ha.ActiveStandbyElector$3.run(ActiveStandbyElector.java:1030)
at
org.apache.hadoop.ha.ActiveStandbyElector.zkDoWithRetries(ActiveStandbyElector.java:1095)
at
org.apache.hadoop.ha.ActiveStandbyElector.zkDoWithRetries(ActiveStandbyElector.java:1087)
at
org.apache.hadoop.ha.ActiveStandbyElector.createWithRetries(ActiveStandbyElector.java:1030)
at
org.apache.hadoop.ha.ActiveStandbyElector.ensureParentZNode(ActiveStandbyElector.java:347)
at
org.apache.hadoop.yarn.server.resourcemanager.ActiveStandbyElectorBasedElectorService.serviceInit(ActiveStandbyElectorBasedElectorService.java:110)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
at
org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:108)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:336)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:164)
at
org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.main(ResourceManager.java:1479)
2018-06-08 10:31:03,345 INFO ha.ActiveStandbyElector
(ActiveStandbyElector.java:quitElection(409)) - Yielding from election{code}
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