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https://issues.apache.org/jira/browse/HDFS-2028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13043880#comment-13043880
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Matt Foley commented on HDFS-2028:
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There is an open bug related to lots of port 50010 sockets hanging around in
CLOSE_WAIT state: HDFS-1836 (bug exists in v20 only, was just fixed a couple
weeks ago, in v20 branch; patch pending for v20.205).
Also, not sure of the port number, but also related to excessive open sockets:
HDFS-1057 (comment
[13036525|https://issues.apache.org/jira/browse/HDFS-1057?focusedCommentId=13036525&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13036525]),
fixed in trunk, 0.21, 0.20-append.
> There are lot of ESTABLISHED socket connetions at 50010 port.
> -------------------------------------------------------------
>
> Key: HDFS-2028
> URL: https://issues.apache.org/jira/browse/HDFS-2028
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 0.20.1, 0.20.3
> Environment: linux server
> Reporter: Zhou Sheng
> Labels: hadoop
>
> When I load data into tables of hive via hiver cli or hive server, there are
> always some ESTABLISHED or CLOSE_WAIT status socket connections. And these
> tcp connections won't be released unless you quit hive or restart hiveserver.
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