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Vitaliy Biryukov commented on IGNITE-8699: ------------------------------------------ [~sergey-chugunov], Is full *ZooKeeper (Discovery) 1* suit enough? [TC link|https://ci.ignite.apache.org/viewLog.html?buildId=1374005&buildTypeId=IgniteTests24Java8_ZooKeeperDiscovery1&tab=buildResultsDiv] You are right about option#1. This case reproduce on my Linux machine sometimes. The piece of thread dump (full thread dump in attachments): {noformat} Thread [name="disco-event-worker-#2605%internal.ZookeeperDiscoverySpiTest5%", id=3211, state=WAITING, blockCnt=2, waitCnt=6] at sun.misc.Unsafe.park(Native Method) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:304) at o.a.i.i.util.future.GridFutureAdapter.get0(GridFutureAdapter.java:177) at o.a.i.i.util.future.GridFutureAdapter.get(GridFutureAdapter.java:140) at o.a.i.i.managers.discovery.GridDiscoveryManager.localJoin(GridDiscoveryManager.java:2190) at o.a.i.spi.discovery.zk.internal.ZookeeperDiscoverySpiTest$2.apply(ZookeeperDiscoverySpiTest.java:315) - locked java.util.TreeMap@38081448 at o.a.i.spi.discovery.zk.internal.ZookeeperDiscoverySpiTest$2.apply(ZookeeperDiscoverySpiTest.java:295) at o.a.i.i.managers.eventstorage.GridEventStorageManager$UserListenerWrapper.onEvent(GridEventStorageManager.java:1477) at o.a.i.i.managers.eventstorage.GridEventStorageManager.notifyListeners(GridEventStorageManager.java:873) at o.a.i.i.managers.eventstorage.GridEventStorageManager.notifyListeners(GridEventStorageManager.java:858) at o.a.i.i.managers.eventstorage.GridEventStorageManager.record0(GridEventStorageManager.java:341) at o.a.i.i.managers.eventstorage.GridEventStorageManager.record(GridEventStorageManager.java:307) at o.a.i.i.managers.discovery.GridDiscoveryManager$DiscoveryWorker.recordEvent(GridDiscoveryManager.java:2703) at o.a.i.i.managers.discovery.GridDiscoveryManager$DiscoveryWorker.body0(GridDiscoveryManager.java:2920) at o.a.i.i.managers.discovery.GridDiscoveryManager$DiscoveryWorker.body(GridDiscoveryManager.java:2732) at o.a.i.i.util.worker.GridWorker.run(GridWorker.java:110) at java.lang.Thread.run(Thread.java:748) {noformat} > ZookeeperDiscoverySpiTest#testDisconnectOnServersLeft flaky fails (rarely) > -------------------------------------------------------------------------- > > Key: IGNITE-8699 > URL: https://issues.apache.org/jira/browse/IGNITE-8699 > Project: Ignite > Issue Type: Bug > Reporter: Vitaliy Biryukov > Assignee: Vitaliy Biryukov > Priority: Major > Labels: MakeTeamcityGreenAgain > Attachments: thread-dump-fail-before-local-join > > > *Affected tests:* > testDisconnectOnServersLeft_1 > testDisconnectOnServersLeft_2 > testDisconnectOnServersLeft_3 > testDisconnectOnServersLeft_4 > testDisconnectOnServersLeft_5 > {noformat} > junit.framework.AssertionFailedError: Failed to wait for disconnect/reconnect > event. > at junit.framework.Assert.fail(Assert.java:57) > at junit.framework.TestCase.fail(TestCase.java:227) > at > org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoverySpiTest.waitReconnectEvent(ZookeeperDiscoverySpiTest.java:4685) > at > org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoverySpiTest.disconnectOnServersLeft(ZookeeperDiscoverySpiTest.java:3541) > at > org.apache.ignite.spi.discovery.zk.internal.ZookeeperDiscoverySpiTest.testDisconnectOnServersLeft_4(ZookeeperDiscoverySpiTest.java:3476) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:498) > at junit.framework.TestCase.runTest(TestCase.java:176) > at > org.apache.ignite.testframework.junits.GridAbstractTest.runTestInternal(GridAbstractTest.java:2086) > at > org.apache.ignite.testframework.junits.GridAbstractTest.access$000(GridAbstractTest.java:140) > at > org.apache.ignite.testframework.junits.GridAbstractTest$5.run(GridAbstractTest.java:2001) > at java.lang.Thread.run(Thread.java:748) > {noformat} -- This message was sent by Atlassian JIRA (v7.6.3#76005)