Akihiro Suda created ZOOKEEPER-2381:
---------------------------------------
Summary: ReconfigTest.testPortChange has been failing
intermittently
Key: ZOOKEEPER-2381
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2381
Project: ZooKeeper
Issue Type: Test
Components: server, tests
Reporter: Akihiro Suda
ReconfigTest.testPortChange has been failing intermittently:
- Feb 12, 2016: https://builds.apache.org/job/PreCommit-ZOOKEEPER-Build/3045/
- Feb 16, 2015: http://permalink.gmane.org/gmane.comp.java.zookeeper.devel/25521
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:
{code}
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)
{code}
test code:
https://github.com/apache/zookeeper/blob/2cc945442e218d0757983ac42e2a5d86a94ccb30/src/java/test/org/apache/zookeeper/test/ReconfigTest.java#L150
{code:java}
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.");
}
}
}
{code}
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