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Posted to issues@drill.apache.org by "James Turton (Jira)" <ji...@apache.org> on 2022/01/06 13:46:00 UTC
[jira] [Closed] (DRILL-8077) Thousand of CLOSE_WAIT connections to HDFS Datanode
[ https://issues.apache.org/jira/browse/DRILL-8077?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
James Turton closed DRILL-8077.
-------------------------------
Resolution: Workaround
> Thousand of CLOSE_WAIT connections to HDFS Datanode
> ----------------------------------------------------
>
> Key: DRILL-8077
> URL: https://issues.apache.org/jira/browse/DRILL-8077
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Other
> Affects Versions: 1.16.0
> Reporter: Christian Pfarr
> Priority: Major
>
> In IPv6 environments after a while drill has a lot of connections to HDFS Datanode in CLOSE_WAIT state.
> To fix this we add '-Djava.net.preferIPv4Stack=true -Djava.net.preferIPv6Addresses=false' to our drill configuration and the problem vanished.
> we saw [https://community.cloudera.com/t5/Support-Questions/Over-40000-CLOSE-WAIT-after-hbase-cluster-restart/m-p/6403/highlight/true#M51847] from cloudera that helped.
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