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https://issues.apache.org/jira/browse/HBASE-19204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16257981#comment-16257981
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Chia-Ping Tsai commented on HBASE-19204:
----------------------------------------
It seems the hang occurs on closing the {{MiniDFSCluster}}. The test is shown
below.
{code}
@Test
public void testHdfsHang() throws Exception {
MiniDFSCluster dfsCluster = null;
for (int i = 0; i != 10; ++i) {
try {
dfsCluster = new MiniDFSCluster
.Builder(new Configuration())
.checkExitOnShutdown(true)
.numDataNodes(2)
.format(true)
.racks(null)
.build();
FileSystem fs = dfsCluster.getFileSystem();
fs.getConf().set("fs.defaultFS", new Path(fs.getUri()).toString());
dfsCluster.waitClusterUp();
} finally {
dfsCluster.shutdown();
}
}
}
{code}
The weird thing is that only openjdk-7u141 and openjdk-7u151 prompt the issue.
The older jdk7 or jdk8 don't hang. The OS I used for testing is centos-1708 and
ubuntu-14.04.
> branch-1.2 times out and is taking 6-7 hours to complete
> --------------------------------------------------------
>
> Key: HBASE-19204
> URL: https://issues.apache.org/jira/browse/HBASE-19204
> Project: HBase
> Issue Type: Umbrella
> Components: test
> Reporter: stack
>
> Sean has been looking at tooling and infra. This Umbrellas is about looking
> at actual tests. For example, running locally on dedicated machine I picked a
> random test, TestPerColumnFamilyFlush. In my test run, it wrote 16M lines. It
> seems to be having zk issues but it is catching interrupts and ignoring them
> ([~carp84] fixed this in later versions over in HBASE-18441).
> Let me try and do some fixup under this umbrella so we can get a 1.2.7 out
> the door.
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