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https://issues.apache.org/jira/browse/HDFS-7475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14242580#comment-14242580
]
Hudson commented on HDFS-7475:
------------------------------
FAILURE: Integrated in Hadoop-Hdfs-trunk-Java8 #35 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk-Java8/35/])
HDFS-7475. Make TestLazyPersistFiles#testLazyPersistBlocksAreSaved
deterministic. (Contributed by Xiaoyu Yao) (arp: rev
9a44db48b4bfc097284f68a0576c058a0fd167bf)
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestLazyPersistFiles.java
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/LazyPersistTestCase.java
> Make TestLazyPersistFiles#testLazyPersistBlocksAreSaved deterministic
> ----------------------------------------------------------------------
>
> Key: HDFS-7475
> URL: https://issues.apache.org/jira/browse/HDFS-7475
> Project: Hadoop HDFS
> Issue Type: Test
> Components: test
> Affects Versions: 2.6.0
> Reporter: Xiaoyu Yao
> Assignee: Xiaoyu Yao
> Fix For: 2.7.0
>
> Attachments: HDFS-7475.0.patch, HDFS-7475.1.patch, HDFS-7475.2.patch
>
>
> TestLazyPersistFiles#testLazyPersistBlocksAreSaved verifies that the memory
> block is saved in lazy persist directory after some sleep with the following
> code.
> {code}
> // Sleep for a short time to allow the lazy writer thread to do its job
> Thread.sleep(6 * LAZY_WRITER_INTERVAL_SEC * 1000);
> {code}
> However, the sleep only guarantees an async lazy persist task is scheduled.
> The task running on a per volume thread pool thread can take longer to finish
> persisting. It will be more deterministic to wait the pending lazy persist
> task count reduce to 0 before verifying the block file exist in lazy persist
> dir.
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