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https://issues.apache.org/jira/browse/STORM-1632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15220573#comment-15220573
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ASF GitHub Bot commented on STORM-1632:
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Github user roshannaik commented on the pull request:
https://github.com/apache/storm/pull/1217#issuecomment-204101205
1. I spent sometime trying to see if the tooltip can show up faster. But
there is a catch-22 there. The Bootstrap based tooltip mechanism allows it, but
the Bootstrap based tooltips wont show up if button is disabled. So had to
settle for this mechanism... which has a downside that it doesnt allow
customization of color and timing to the best i could check. The solution you
describe here is among one of the alternative I had already tried and it
doesn't work. The tooltip wont show up unless you hover the mouse over the
boundary between the enclosing span element and the disabled button.
2. & 3. Although nice to not show tooltip when enabled, I thought its OK
to show the tooltip in both enabled/disabled states of the button. Given the
desire for quick turn around, i felt it was wise to not pursue
implementing/testing this nice to have, but non-critical feature.
4. Let me look into that.
> 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
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