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Posted to hdfs-issues@hadoop.apache.org by "Xiao Liang (Jira)" <ji...@apache.org> on 2020/05/08 05:13:00 UTC
[jira] [Assigned] (HDFS-15342) Handle more generic exceptions in
the threads created in
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeList#addBlockPool
[ https://issues.apache.org/jira/browse/HDFS-15342?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiao Liang reassigned HDFS-15342:
---------------------------------
Assignee: Xiao Liang
> Handle more generic exceptions in the threads created in org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeList#addBlockPool
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-15342
> URL: https://issues.apache.org/jira/browse/HDFS-15342
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 2.9.0, 3.1.0, 2.9.1, 3.2.0, 2.9.2
> Reporter: Xiao Liang
> Assignee: Xiao Liang
> Priority: Major
>
> *++*++In org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeList#addBlockPool, threads will be created for each volume for adding block pools. In the thread, IOException will be caught and handled, however, there can be other types of exceptions(for example [HDFS-14582|https://issues.apache.org/jira/browse/HDFS-14582]), without catching them, the thread can terminate without any error log, the exception info will be only in stderr but probably not noticed and unsearchable from log, this could make it difficult to investigate related issues.
>
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