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List:       mina-dev
Subject:    [jira] [Comment Edited] (SSHD-340) Hanging threads left working when server is shut down
From:       "Jared Wiltshire (JIRA)" <jira () apache ! org>
Date:       2018-07-29 19:45:00
Message-ID: JIRA.12736516.1408972642000.113920.1532893500266 () Atlassian ! JIRA
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    [ https://issues.apache.org/jira/browse/SSHD-340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16553394#comment-16553394 \
] 

Jared Wiltshire edited comment on SSHD-340 at 7/29/18 7:44 PM:
---------------------------------------------------------------

I've definitely seen the issue with the server threads not stopping correctly in \
version -1.0.0- 2.0.0

I've also just discovered that you can't stop an instance of  SshServer then restart \
it again safely. This is due to the AbstractCloseable superclass which never has its \
state set back to State.Opened when you start it again. This means if you start \
SshServer after stopping, it starts back up OK but you can never stop it again.


was (Author: jaredwiltshire):
I've definitely seen the issue with the server threads not stopping correctly in \
version 1.0.0

I've also just discovered that you can't stop an instance of  SshServer then restart \
it again safely. This is due to the AbstractCloseable superclass which never has its \
state set back to State.Opened when you start it again. This means if you start \
SshServer after stopping, it starts back up OK but you can never stop it again.

> Hanging threads left working when server is shut down
> -----------------------------------------------------
> 
> Key: SSHD-340
> URL: https://issues.apache.org/jira/browse/SSHD-340
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 0.12.0
> Reporter: Sampo Savolainen
> Priority: Major
> Original Estimate: 1h
> Remaining Estimate: 1h
> 
> SSHD fails to stop properly due to errant threads. I've attached a thread dump from \
> a point of execution where everything should have been cleaned up. The hanging \
> threads happen only if the server has accepted connections and they do not hang \
> forever, they seem to stop themselves after a minute or so. This might be an \
> executor pool which is not shut down correctly. Earlier versions (0.8.0 and 0.9.0) \
> did not exhibit this behavior.



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