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Posted to dev@storm.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2015/10/21 19:38:27 UTC
[jira] [Commented] (STORM-1121) Improve Nimbus Topology submission
time
[ https://issues.apache.org/jira/browse/STORM-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14967521#comment-14967521 ]
ASF GitHub Bot commented on STORM-1121:
---------------------------------------
GitHub user kishorvpatil opened a pull request:
https://github.com/apache/storm/pull/810
[STORM-1121] Remove method call to avoid overhead during topology submission time
Nimbus calls mk-assignments from SubmitTopology within lock is causing it to wait for processing of all heartbeats. This conflicts with recurring mk-assignments call. Topology can be submitted without making assignments, since for new topology the assignments would be made available as part of next scheduling cycle.). This gives more consistent response time as avoid locking within nimbus.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kishorvpatil/incubator-storm STORM-1121
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/storm/pull/810.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 #810
----
commit 1593a374a4a381238f39fd9b0d078586d1aaa305
Author: Kishor Patil <kp...@yahoo-inc.com>
Date: 2015-10-19T23:32:18Z
Remove method call to avoid overhead during topology submission time
----
> Improve Nimbus Topology submission time
> ---------------------------------------
>
> Key: STORM-1121
> URL: https://issues.apache.org/jira/browse/STORM-1121
> Project: Apache Storm
> Issue Type: Bug
> Reporter: Kishor Patil
> Assignee: Kishor Patil
>
> It appears, nimbus is blocking itself as active topologies count goes up. It increases submitTopology response time exponentially for submission of newer topology.
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