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https://issues.apache.org/jira/browse/HDFS-10426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yiqun Lin updated HDFS-10426:
-----------------------------
    Attachment: HDFS-10426.006.patch

> TestPendingInvalidateBlock failed in trunk
> ------------------------------------------
>
>                 Key: HDFS-10426
>                 URL: https://issues.apache.org/jira/browse/HDFS-10426
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>            Reporter: Yiqun Lin
>            Assignee: Yiqun Lin
>         Attachments: HDFS-10426.001.patch, HDFS-10426.002.patch, 
> HDFS-10426.003.patch, HDFS-10426.004.patch, HDFS-10426.005.patch, 
> HDFS-10426.006.patch
>
>
> The test {{TestPendingInvalidateBlock}} failed sometimes. The stack info:
> {code}
> org.apache.hadoop.hdfs.server.blockmanagement.TestPendingInvalidateBlock
> testPendingDeletion(org.apache.hadoop.hdfs.server.blockmanagement.TestPendingInvalidateBlock)
>   Time elapsed: 7.703 sec  <<< FAILURE!
> java.lang.AssertionError: expected:<2> but was:<1>
>       at org.junit.Assert.fail(Assert.java:88)
>       at org.junit.Assert.failNotEquals(Assert.java:743)
>       at org.junit.Assert.assertEquals(Assert.java:118)
>       at org.junit.Assert.assertEquals(Assert.java:555)
>       at org.junit.Assert.assertEquals(Assert.java:542)
>       at 
> org.apache.hadoop.hdfs.server.blockmanagement.TestPendingInvalidateBlock.testPendingDeletion(TestPendingInvalidateBlock.java:92)
> {code}
> It looks that the {{invalidateBlock}} has been removed before we do the check
> {code}
>     // restart NN
>     cluster.restartNameNode(true);
>     dfs.delete(foo, true);
>     Assert.assertEquals(0, cluster.getNamesystem().getBlocksTotal());
>     Assert.assertEquals(REPLICATION, cluster.getNamesystem()
>         .getPendingDeletionBlocks());
>     Assert.assertEquals(REPLICATION,
>         dfs.getPendingDeletionBlocksCount());
> {code}
> And I look into the related configurations. I found the property 
> {{dfs.namenode.replication.interval}} was just set as 1 second in this test. 
> And after the delay time of {{dfs.namenode.startup.delay.block.deletion.sec}} 
> and the delete operation was slowly, it will cause this case. We can see the 
> stack info before, the failed test costs 7.7s more than 5+1 second.
> One way can improve this.
> * Increase the time of {{dfs.namenode.replication.interval}}



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