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https://issues.apache.org/jira/browse/HDFS-17357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDFS-17357:
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Labels: pull-request-available (was: )
> NioInetPeer.close() should close socket connection.
> ---------------------------------------------------
>
> Key: HDFS-17357
> URL: https://issues.apache.org/jira/browse/HDFS-17357
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: liuguanghua
> Assignee: liuguanghua
> Priority: Major
> Labels: pull-request-available
>
> NioInetPeer.close() now do not close socket connection.
>
> In my environment，all data were stored with EC.
> And I found 3w+ connections leakage in datanode . And I found many warn
> message as blew.
> 2024-01-22 15:27:57,500 WARN org.apache.hadoop.hdfs.server.datanode.DataNode:
> hostname:50010:DataXceiverServer
>
> When any Exception is found in DataXceiverServer, it will execute clostStream.
> IOUtils.closeStream(peer) -> Peer.close() -> NioInetPeer.close()
> But NioInetPeer.close() is not invoked with close socket connection. And
> this will lead to connection leakage.
> Other subClass of Peer's close() is implemented with socket.close(). See
> EncryptedPeer, DomainPeer, BasicInetPeer
>
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