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https://issues.apache.org/jira/browse/HDFS-7570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14262523#comment-14262523
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Yongjun Zhang commented on HDFS-7570:
-------------------------------------
Hi [[email protected]] and [~cmccabe], thanks for looking into this. I think
it'd be nice to add some comment such as what Colin commented, to avoid future
confusion. Maybe we can use this jira for that purpose? Thanks.
> DataXceiver could leak FileDescriptor
> -------------------------------------
>
> Key: HDFS-7570
> URL: https://issues.apache.org/jira/browse/HDFS-7570
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Juan Yu
>
> DataXceiver doesn't close inputstream all the time, There could be FD leakage
> and overtime cause FDs exceed limit.
> {code}
> finally {
> if (LOG.isDebugEnabled()) {
> LOG.debug(datanode.getDisplayName() + ":Number of active connections
> is: "
> + datanode.getXceiverCount());
> }
> updateCurrentThreadName("Cleaning up");
> if (peer != null) {
> dataXceiverServer.closePeer(peer);
> IOUtils.closeStream(in);
> }
> }
> {code}
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