[
https://issues.apache.org/jira/browse/PIG-1270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13159819#comment-13159819
]
Min Zhou commented on PIG-1270:
-------------------------------
We are using a modified version of 0.19.1. However, that internal version
provide new MR API and is compatible with both hadoop clients under the
versions of 0.19.x and 0.20.2. Our version doesn't change any logic of map
phase from the community version, so this patch should improves the latter as
well.
That's a good attempt if we can address more cases like limit optimization on
LOFilter.
> Push limit into loader
> ----------------------
>
> Key: PIG-1270
> URL: https://issues.apache.org/jira/browse/PIG-1270
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.7.0
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Attachments: PIG-1270-1.patch, PIG-1270-2.patch, PIG-1270-3.patch
>
>
> We can optimize limit operation by stopping early in PigRecordReader. In
> general, we need a way to communicate between PigRecordReader and execution
> pipeline. POLimit could instruct PigRecordReader that we have already had
> enough records and stop feeding more data.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
