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Posted to commits@beam.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/12/02 22:04:58 UTC
[jira] [Commented] (BEAM-986) ReduceFnRunner doesn't batch
prefetching pane firings
[ https://issues.apache.org/jira/browse/BEAM-986?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15716669#comment-15716669 ]
ASF GitHub Bot commented on BEAM-986:
-------------------------------------
GitHub user scwhittle opened a pull request:
https://github.com/apache/incubator-beam/pull/1493
[BEAM-986] Deprecate TimerCallback and InMemoryTimerInternals methods using it.
Deprecate TimerCallback and InMemoryTimerInternals methods using it.
Instead separate advancing watermarks and removing eligible timers.
SDK changes necessary for improving ReduceFnRunner prefetching.
Hi @kennknowles , can you please take a look? This is the sdk changes separated out from PR adding
prefetching.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/scwhittle/incubator-beam rm_timer_callback
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-beam/pull/1493.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1493
----
commit 550c6b05b426714f291174323366f82d34afeab3
Author: Sam Whittle <sa...@google.com>
Date: 2016-12-02T06:51:37Z
Deprecate TimerCallback and InMemoryTimerInternals methods using it.
Instead separate advancing watermarks and removing eligible timers.
----
> ReduceFnRunner doesn't batch prefetching pane firings
> -----------------------------------------------------
>
> Key: BEAM-986
> URL: https://issues.apache.org/jira/browse/BEAM-986
> Project: Beam
> Issue Type: Bug
> Components: runner-core
> Reporter: Sam Whittle
> Assignee: Sam Whittle
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> Specifically
> - in ProcessElements, if there are multiple windows to consider each is processed sequentially with sequential state fetches instead of a bulk prefetch
> - onTimer method doesn't evaluate multiple timers at a time meaning that if multiple timers are fired at once each is processed sequentially without batched prefetching
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