[
https://issues.apache.org/jira/browse/STORM-1632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15212833#comment-15212833
]
ASF GitHub Bot commented on STORM-1632:
---------------------------------------
Github user HeartSaVioR commented on the pull request:
https://github.com/apache/storm/pull/1217#issuecomment-201716320
@arunmahadevan
Please post pull request with your patch.
I tried to change the way to update debug information from executor by
pushing system tuple, and it increases throughput for EL=1, but it also
decreases throughput for EL=0 compared to before.
I'll try to improve my approach if your patch doesn't help much, but
according to your number it seems to end up this long conversation.
@roshannaik
Could you please apply @arunmahadevan patch and do benchmarks again? Thanks
in advance!
> Disable event logging by default
> --------------------------------
>
> Key: STORM-1632
> URL: https://issues.apache.org/jira/browse/STORM-1632
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-core
> Reporter: Roshan Naik
> Assignee: Roshan Naik
> Priority: Blocker
> Attachments: BasicTopology.java
>
>
> EventLogging has performance penalty. For a simple speed of light topology
> with a single instances of a spout and a bolt, disabling event logging
> delivers a 7% to 9% perf improvement (with acker count =1)
> Event logging can be enabled when there is need to do debug, but turned off
> by default.
> **Update:** with acker=0 the observed impact was much higher... **25%**
> faster when event loggers = 0
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
