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Posted to hdfs-issues@hadoop.apache.org by "Gary Helmling (JIRA)" <ji...@apache.org> on 2016/04/01 01:17:25 UTC
[jira] [Updated] (HDFS-9805) TCP_NODELAY not set before SASL
handshake in data transfer pipeline
[ https://issues.apache.org/jira/browse/HDFS-9805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gary Helmling updated HDFS-9805:
--------------------------------
Attachment: HDFS-9805.003.patch
New patch rebased against the latest trunk.
> TCP_NODELAY not set before SASL handshake in data transfer pipeline
> -------------------------------------------------------------------
>
> Key: HDFS-9805
> URL: https://issues.apache.org/jira/browse/HDFS-9805
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Gary Helmling
> Assignee: Gary Helmling
> Attachments: HDFS-9805.002.patch, HDFS-9805.003.patch
>
>
> There are a few places in the DN -> DN block transfer pipeline where TCP_NODELAY is not set before doing a SASL handshake:
> * in {{DataNode.DataTransfer::run()}}
> * in {{DataXceiver::replaceBlock()}}
> * in {{DataXceiver::writeBlock()}}
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