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https://issues.apache.org/jira/browse/HBASE-11798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14105794#comment-14105794
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Alex Newman commented on HBASE-11798:
-------------------------------------
I noticed when trying to commit HBASE-4955 that TestBucketWriterThread can
zombie in its setup function.
I also noticed
"main" prio=10 tid=0x00007fa9e000a800 nid=0x571 waiting on condition
[0x00007fa9e6184000]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at org.apache.hadoop.hbase.util.Threads.sleep(Threads.java:143)
at
org.apache.hadoop.hbase.io.hfile.bucket.TestBucketWriterThread.setUp(TestBucketWriterThread.java:78)
In the jstack at
https://builds.apache.org/job/PreCommit-HBASE-Build/10511/console
Looking at the code
this.plainCacheable = Mockito.mock(Cacheable.class);
bc.cacheBlock(this.plainKey, plainCacheable);
while(!bc.ramCache.isEmpty()) Threads.sleep(1); <- where we hang
assertTrue(q.isEmpty());
// Now writer thread should be disabled.
At first I was confused but then I realized that isn't Thread.sleep it is
Threads.sleep
/**
* If interrupted, just prints out the interrupt on STDOUT, resets interrupt
and returns
* @param millis How long to sleep for in milliseconds.
*/
public static void sleep(long millis) {
try {
Thread.sleep(millis);
} catch (InterruptedException e) {
e.printStackTrace();
Thread.currentThread().interrupt();
}
}
I don't know if we need this. I am curious if we can fix it with a different
sleep command.
> TestBucketWriterThread can zombie test
> --------------------------------------
>
> Key: HBASE-11798
> URL: https://issues.apache.org/jira/browse/HBASE-11798
> Project: HBase
> Issue Type: Bug
> Reporter: Alex Newman
> Assignee: Alex Newman
>
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