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Posted to hdfs-dev@hadoop.apache.org by "Xiao Liang (Jira)" <ji...@apache.org> on 2020/05/08 05:08:00 UTC
[jira] [Created] (HDFS-15342) Handle more generic exceptions in the
threads created in
org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsVolumeList#addBlockPool
Xiao Liang created HDFS-15342:
---------------------------------
Summary: 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: 2.9.2, 3.2.0, 2.9.1, 3.1.0, 2.9.0
Reporter: Xiao Liang
*++*++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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