[jira] Commented: (HBASE-2492) "BindException: Cannot assign requested address" because all descriptors occupied in TIME_WAIT when random reading

["Todd Lipcon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-2492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12861023#action_12861023 ] 

Todd Lipcon commented on HBASE-2492:
------------------------------------

HDFS-941 is the connection reuse one. I've backported it to hdfs 0.20 but was seeing exceptions under load, so I put it aside. I may take it back up again some time in May.

> "BindException: Cannot assign requested address" because all descriptors occupied in TIME_WAIT when random reading
> ------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-2492
>                 URL: https://issues.apache.org/jira/browse/HBASE-2492
>             Project: Hadoop HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.4, 0.20.5, 0.21.0
>            Reporter: stack
>             Fix For: 0.21.0
>
>
> See tail of hbase-2180 for detail on this issue.  If a lot of random reading, we start to us up descriptors because sockets stuck in TIME_WAIT.  Workaround described over in hbase-2180.  This issue covers fix for hdfs so we don't open a socket each pread.

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