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From Alexey Goncharuk <alexey.goncha...@gmail.com>
Subject Re: [DISCUSS] Ignite process exit code on node stop by failure handler
Date Tue, 02 Jun 2020 09:54:20 GMT
Sergey,

How exactly do you want to change the StopNodeFH? The current behavior does
not terminate the JVM and its exit code is totally out of our control; one
of the use-cases we had in mind for this failure handler is that a user may
have other processes running in the same JVM, so we do not want Ignite to
affect them.

For me, the exit code makes sense only for StopNodeOrHaltFH with
tryStop=false (otherwise, the JVM exit is not guaranteed as well), but we
already use the KILL_EXIT_CODE there.

пн, 1 июн. 2020 г. в 23:19, Sergey Antonov <antonovsergey93@gmail.com>:

> Hello, Kirill!
>
> I'd prefer to don't create a new implementation of a failure handler. We
> already have 4 different failure handlers. We will have 6 FH (StopNodeFH
> with exit code, StopNodeOrHaltFH with exit code), if we go your way. It
> won't make our product simpler and easier.
>
> I think, we must notify a user if the cluster node had been stopped by a
> failure handler. We can't achieve this goal without changing current FH
> behavior. So I propose to change it and stop the process with
> KILL_EXIT_CODE.
> But it would be nice if users will have a flag for avoiding process stop
> after a node failure. We can introduce a new JVM option or FH parameter for
> that reason. Of course, we must highlight this change in the release notes.
>
> пн, 1 июн. 2020 г. в 19:07, ткаленко кирилл <tkalkirill@yandex.ru>:
>
> > I think that [1] and [2] should not be changed, because we can kill
> > another client code in this jvm.
> > I suggest for these purposes to create a new [3] which will be like [1]
> > but with a call [4] after node stop.
> > Objections or comments?
> >
> > [1] - org.apache.ignite.failure.StopNodeFailureHandler
> > [2] - org.apache.ignite.failure.StopNodeOrHaltFailureHandler
> > [3] - org.apache.ignite.failure.FailureHandler
> > [4] - java.lang.System#exit
> >
> > 25.05.2020, 22:09, "Dmitriy Pavlov" <dpavlov@apache.org>:
> > > It seems reasonable to me. Also I would like to propose adding value of
> > > Ignition.KILL_EXIT_CODE into javadoc using @value javadoc tag.
> > >
> > > Dev ops/admins/anyone who admins Ignite may want to know it's value
> > without
> > > going to Java code.
> > >
> > > чт, 21 мая 2020 г. в 09:39, Zhenya Stanilovsky
> > <arzamas123@mail.ru.invalid>:
> > >
> > >>  Thank you Sergey, as for me — very useful proposal huge +1 here.
> > >>
> > >>  >Четверг, 21 мая 2020, 0:51 +03:00 от Sergey Antonov <
> > >>  antonovsergey93@gmail.com>:
> > >>  >
> > >>  >I've created the Ignite ticket for this improvement [1].
> > >>  >
> > >>  >[1] https://issues.apache.org/jira/browse/IGNITE-13047
> > >>  >
> > >>  >чт, 21 мая 2020 г. в 00:46, Sergey Antonov <
> > antonovsergey93@gmail.com >:
> > >>  >
> > >>  >> Hello, Igniters!
> > >>  >>
> > >>  >> I'd like to discuss behaviour of Ignite process exit code if
the
> > node
> > >>  was
> > >>  >> stopped by failure handler [1][2]. At the moment ignite process
> > returns
> > >>  >> exit code 0 after the stop in all scenarios, except runtime halt
> by
> > >>  >> StopNodeOrHaltFH [1]. In this case, the exit code will be 130
[3]
> > >>  >>
> > >>  >> My proposal: always finish Ignite process with code [3], if a
node
> > was
> > >>  >> stopped by FH. It could be helpful for administration purposes,
> you
> > can
> > >>  >> distinguish normal node stop from node stop by FH on OS level.
> > >>  >>
> > >>  >> WDYT?
> > >>  >>
> > >>  >> [1]
> > >>  >>
> > >>
> >
> https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/failure/StopNodeOrHaltFailureHandler.html
> > >>  >>
> > >>  >> [2]
> > >>  >>
> > >>
> >
> https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/failure/StopNodeFailureHandler.html
> > >>  >>
> > >>  >> [3]
> > >>  >>
> > >>
> >
> https://ignite.apache.org/releases/latest/javadoc/org/apache/ignite/Ignition.html#KILL_EXIT_CODE
> > >>  >> --
> > >>  >> BR, Sergey Antonov
> > >>  >>
> > >>  >
> > >>  >--
> > >>  >BR, Sergey Antonov
> > >>  >
> >
>
>
> --
> BR, Sergey Antonov
>

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