[
https://issues.apache.org/jira/browse/MAPREDUCE-284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12743143#action_12743143
]
Arun C Murthy commented on MAPREDUCE-284:
-----------------------------------------
bq. The reasoning behind reducing rpc ping intervals was to allow the child
tasks to 'fail fast' when sockets to either the TaskTracker or the DataNode
were unexpectedly shutdown.
That was meant to read as 'TaskTracker, JobTracker or NameNode'...
> Improvements to RPC between Child and TaskTracker
> -------------------------------------------------
>
> Key: MAPREDUCE-284
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-284
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Arun C Murthy
> Assignee: Ravi Gummadi
> Fix For: 0.21.0
>
> Attachments: MR-284.patch
>
>
> We could improve the RPC between the Child and TaskTracker:
> * Set ping interval lower by default to 5s
> * Disable nagle's algorithm (tcp no-delay)
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
