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https://issues.apache.org/jira/browse/SSHD-1275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17565093#comment-17565093
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dgü commented on SSHD-1275:
---------------------------
Hello!
But, if I close ChannelExec gracefully, the remote application terminates and
sends an exit value. The problem happens only if I close immediately.
I don't expect any exit value in immediate close. What I expect remote process
is terminated immediately.
I don't have a test environment to debug which kind of signal is sent to remote
application. But, I expect SIGKILL (kill -9) has to be sent to remote process
to terminate/kill it immediately. It looks remote application doesn't receive
SIGKILL to be terminated.
Even if remote application is not terminated by immediate channel close, it's
terminated after I exit from the client application. That means a messaging
happens between client and remote process. I am not sure if such messaging can
happen by immediate channel close without exiting the client application.
> Remote process is still available after
> ChannelExec.close(true).awaitUninterruptibly()
> --------------------------------------------------------------------------------------
>
> Key: SSHD-1275
> URL: https://issues.apache.org/jira/browse/SSHD-1275
> Project: MINA SSHD
> Issue Type: Question
> Affects Versions: 2.8.0
> Environment: Java SE 8, Apache NetBeans IDE 8.2
> Reporter: dgü
> Priority: Major
>
> Hello!
> If I close channel immediately by
> {{{}org.apache.sshd.client.channel.ChannelExec.close(true).awaitUninterruptibly(){}}},
> the remote process is not terminated and
> {{org.apache.sshd.client.channel.ChannelExec#getExitStatus()}} returns
> {{{}null{}}}.
> Even if I test with _Thread.sleep(60*1000)_ after channel close, the problem
> still happens. The problem doesn't happen when channel is closed gracefully.
> is this expected behaviour ?
>
> Thanks in advance!
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