Offical method for shutting down cleanly an Akka Microkernal instance
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foolshat
Feb 9, 2011, 5:12:02 PM2/9/11
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Q: Given a running instance of Akka microkernal, how do you shut it
down gracefully from the command line/terminal ?
The advice below [1] makes sense, "to let it crash", this would be a
ctrl-c in a windows console, which in fact do all the time in
development. But, it kind of feels "wrong" to do that for a production
environment!
It "feels" more "correct" to offer some kind of "-stop" option via a
command line tool. Can the Akka developers confirm that a "kill -9"
or windows "End process" is safe ? Or perhaps you should provide a
tool to shutdown, which under the covers might just kill the process,
but leaving everyone oblivious to the reality.
[1]
http://groups.google.com/group/akka-user/browse_thread/thread/b2434f5e190ef6f7/c55c6b3615526e42?lnk=gst&q=shutting+down+microkernal#c55c6b3615526e42
down gracefully from the command line/terminal ?
The advice below [1] makes sense, "to let it crash", this would be a
ctrl-c in a windows console, which in fact do all the time in
development. But, it kind of feels "wrong" to do that for a production
environment!
It "feels" more "correct" to offer some kind of "-stop" option via a
command line tool. Can the Akka developers confirm that a "kill -9"
or windows "End process" is safe ? Or perhaps you should provide a
tool to shutdown, which under the covers might just kill the process,
but leaving everyone oblivious to the reality.
[1]
http://groups.google.com/group/akka-user/browse_thread/thread/b2434f5e190ef6f7/c55c6b3615526e42?lnk=gst&q=shutting+down+microkernal#c55c6b3615526e42
Garrick Evans
Feb 9, 2011, 5:24:53 PM2/9/11
to akka...@googlegroups.com
This page in the wiki shows a few scripts that you could use (on osx or linux) to start/stop as service but you're essentially doing the same thing... Jetty catches the signal and will shutdown gracefully.
foolshat
Feb 9, 2011, 5:42:41 PM2/9/11
to Akka User List
Thanks Garrick for the quick reply.
>Jetty catches the signal and will shutdown gracefully.
Is this the case with Windows ? On ctrl-c I get
Terminate batch job (Y/N)? y
No further output. Checking in the akka.log file, I just see the last
entry I saw in the console prior to ctl-c.
I kind of expected "akka microkernel shutting down" or something.
On Feb 9, 10:24 pm, Garrick Evans <buk...@gmail.com> wrote:
> This page <http://doc.akka.io/building-akka> in the wiki shows a few scripts
>Jetty catches the signal and will shutdown gracefully.
Terminate batch job (Y/N)? y
No further output. Checking in the akka.log file, I just see the last
entry I saw in the console prior to ctl-c.
I kind of expected "akka microkernel shutting down" or something.
On Feb 9, 10:24 pm, Garrick Evans <buk...@gmail.com> wrote:
> This page <http://doc.akka.io/building-akka> in the wiki shows a few scripts
Garrick Evans
Feb 9, 2011, 5:44:59 PM2/9/11
to akka...@googlegroups.com
I can honestly admit to never having run akka on windows but what do you see if you launch the jar yourself from the shell and then ctrl-c it? same thing?
Jonas Bonér
Feb 10, 2011, 2:15:16 AM2/10/11
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Akka is crash-only software. http://en.wikipedia.org/wiki/Crash-only_software
--
Jonas Bonér
Specialist at Large
work: http://scalablesolutions.se
code: http://akka.io
blog: http://jonasboner.com
twtr: @jboner
Just 'kill -9' it.
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