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  1. ZooKeeper
  2. ZOOKEEPER-2381

ReconfigTest.testPortChange has been failing intermittently

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    Details

    • Type: Test
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: server, tests
    • Labels:
      None

      Description

      ReconfigTest.testPortChange has been failing intermittently:

      I can also locally reproduce with 40d0804c (Mar 3, 2016).

      The error message looks like as if it is a linearizability violation for sync+read operation, but I'm still not sure.

      stack trace:

      junit.framework.AssertionFailedError: expected:<test[1]> but was:<test[0]>
      	at org.apache.zookeeper.test.ReconfigTest.testNormalOperation(ReconfigTest.java:150)
      	at org.apache.zookeeper.test.ReconfigTest.testPortChange(ReconfigTest.java:598)
      	at org.apache.zookeeper.JUnit4ZKTestRunner$LoggedInvokeMethod.evaluate(JUnit4ZKTestRunner.java:79)
      

      test code: https://github.com/apache/zookeeper/blob/2cc945442e218d0757983ac42e2a5d86a94ccb30/src/java/test/org/apache/zookeeper/test/ReconfigTest.java#L150

      for (int j = 0; j < 30; j++) {
           try {
               ..
               String data = "test" + j;
               writer.setData("/test", data.getBytes(), -1);
               reader.sync("/", null, null);
               byte[] res = reader.getData("/test", null, new Stat());
               Assert.assertEquals(data, new String(res));
               break;
           } catch (KeeperException.ConnectionLossException e) {
               if (j < 29) {
                   Thread.sleep(1000);
               } else {
                   // test fails if we still can't connect to the quorum after
                   // 30 seconds.
                   Assert.fail("client could not connect to reestablished quorum: giving up after 30+ seconds.");
               }
           }
      }
      

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              • Assignee:
                Unassigned
                Reporter:
                suda Akihiro Suda
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                Dates

                • Created:
                  Updated:
                  Resolved: