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From "Alexey Platonov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-9531) ZookeeperDiscovery testClientReconnect is flaky in master
Date Tue, 11 Sep 2018 08:14:00 GMT
Alexey Platonov created IGNITE-9531:
---------------------------------------

             Summary: ZookeeperDiscovery testClientReconnect is flaky in master
                 Key: IGNITE-9531
                 URL: https://issues.apache.org/jira/browse/IGNITE-9531
             Project: Ignite
          Issue Type: Bug
            Reporter: Alexey Platonov
            Assignee: Alexey Platonov
             Fix For: 2.8


The test IgniteClientReconnectCacheTest#testReconnectMultinode(LongHistory) periodically fails
with timeouts in master.
>From the logs I see that the hang is caused by one of the two assertion errors:
{code}
java.lang.AssertionError
	at org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoveryImpl.checkClientsStatus(ZookeeperDiscoveryImpl.java:1345)
	at org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoveryImpl.access$2300(ZookeeperDiscoveryImpl.java:108)
	at org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoveryImpl$CheckClientsStatusCallback.processResult0(ZookeeperDiscoveryImpl.java:4332)
	at org.apache.ignite.spi.discovery.zk.internal.ZkAbstractChildrenCallback.processResult(ZkAbstractChildrenCallback.java:42)
	at org.apache.ignite.spi.discovery.zk.internal.ZookeeperClient$ChildrenCallbackWrapper.processResult(ZookeeperClient.java:1132)
	at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:590)
	at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
{code}
or 
{code}
java.lang.AssertionError
    at org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoveryImpl.checkClientsStatus(ZookeeperDiscoveryImpl.java:1388)
    at org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoveryImpl.access$2300(ZookeeperDiscoveryImpl.java:108)
    at org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoveryImpl$CheckClientsStatusCallback.processResult0(ZookeeperDiscoveryImpl.java:4332)
    at org.apache.ignite.spi.discovery.zk.internal.ZkAbstractChildrenCallback.processResult(ZkAbstractChildrenCallback.java:42)
    at org.apache.ignite.spi.discovery.zk.internal.ZookeeperClient$ChildrenCallbackWrapper.processResult(ZookeeperClient.java:1132)
    at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:590)
    at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
{code}

The test failure can be rarely reproduced locally (run repeatedly with CPU stress enabled).



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