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https://issues.apache.org/jira/browse/IGNITE-3769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15438424#comment-15438424
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Pavel Konstantinov commented on IGNITE-3769:
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"2) If alert detected "red" state then custom script should be executed. If
script is not available - retry with specified rate."
"specified rate" -- is this '-t' or '-i' option? I guess you meant '-t' option.
"3) After alert detected "red" state it should continue to check condition each
t milliseconds and execute script no more than throttling timeout "-i",
this timeout could be "zero" that means that throttling disabled."
As I remember the -t parameter is measured in seconds not in milliseconds.
4) After alert detected "green" state then custom scrip executed with special
"green state" flag.
I suggest to pass 'current state' like '1' is RED and '0' is 'GREEN' always.
"5) When alert executed script it should pass to it how many times it was
evaluated as "red state"."
Probably will be useful to pass not only 'how many times' but 'how many
time'(duration) too?
> Visor CMD: improve script execution in alert command
> ----------------------------------------------------
>
> Key: IGNITE-3769
> URL: https://issues.apache.org/jira/browse/IGNITE-3769
> Project: Ignite
> Issue Type: Task
> Components: visor
> Affects Versions: 1.7
> Reporter: Alexey Kuznetsov
> Fix For: 1.8
>
>
> Current logic of executing custom scripts from alert command is not very
> usable and need to be improved.
> Suppose alert could be in two states: "red" (alert conditions evaluated as
> true) and "green".
> 1) Alert checks condition each t milliseconds (already implemented).
> 2) If alert detected "red" state then custom script should be executed. If
> script is not available - retry with specified rate.
> 3) After alert detected "red" state it should continue to check condition
> each t milliseconds and execute script no more than throttling timeout "-i",
> this timeout could be "zero" that means that throttling disabled.
> 4) After alert detected "green" state then custom scrip executed with special
> "green state" flag.
> 5) When alert executed script it should pass to it how many times it was
> evaluated as "red state".
> Looks good?
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