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https://issues.apache.org/jira/browse/AURORA-1223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15468067#comment-15468067
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Kai Huang edited comment on AURORA-1223 at 9/6/16 6:19 PM:
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After discussion on Aurora dev list, we decided to keep the watch_secs
infrastructure on scheduler side.
Our final conclusion is that we adopt the following implementation:
If the users want purely health checking driven updates they can set watch_secs
to 0 and enable health checks.
If they want to have both health checking and time driven updates they can set
watch_secs to the time that they care about, and doing health checks at
STARTING state as well.
If they just want time driven updates they can disable health checking and set
watch_secs to the time that they care about.
There will be only one scheduler change required:
Currently scheduler does not accept zero value for watch_secs, we need to relax
this constraint.
was (Author: kaih):
After discussion on Aurora dev list, it turns out there will be no
scheduler-side change associated with this issue.
Our final conclusion is that we adopt the following implementation:
If the users want purely health checking driven updates they can set watch_secs
to 0 and enable health checks. (watch_secs=0 is not allowed at client side, we
will relax this constraint after we modified executor. However, no scheduler
change is required since scheduler allows non-negative values for watch_secs)
If they want to have both health checking and time driven updates they can set
watch_secs to the time that they care about, and doing health checks at
STARTING state as well.
If they just want time driven updates they can disable health checking and set
watch_secs to the time that they care about..
> Modify scheduler updater to not use "watch_secs" for health-check enabled jobs
> ------------------------------------------------------------------------------
>
> Key: AURORA-1223
> URL: https://issues.apache.org/jira/browse/AURORA-1223
> Project: Aurora
> Issue Type: Task
> Components: Scheduler
> Reporter: Maxim Khutornenko
> Assignee: Kai Huang
>
> When health checks are enabled in a job config, scheduler updater should
> ignore "watch_secs" UpdateConfig value.
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