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https://issues.apache.org/jira/browse/SSHD-901?focusedWorklogId=416055&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-416055
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ASF GitHub Bot logged work on SSHD-901:
---------------------------------------
Author: ASF GitHub Bot
Created on: 04/Apr/20 22:14
Start Date: 04/Apr/20 22:14
Worklog Time Spent: 10m
Work Description: Arunapotti commented on issue #95: SSHD-901 Provide
'wantReply' option for client keep-alive heartbeat global request
URL: https://github.com/apache/mina-sshd/pull/95#issuecomment-609096163
[image: image.png]
Don't you openSSH internally for SSHD? If you do, then I assume there
should be a way to use openSSH supported "ClinetAliveInterval" through your
SSHD.
On Sat, Apr 4, 2020 at 9:07 AM Lyor Goldstein <[email protected]>
wrote:
> This seems like the idle timeout I mentioned - although I don't know how
> they
>
> send a message through the encrypted channel to request a response from
> the client.
>
> I am looking for an equivalent option with your SSHD.
>
> See my response regarding usage of SSH_MSG_IGNORE
>
> —
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Issue Time Tracking
-------------------
Worklog Id: (was: 416055)
Time Spent: 1h 10m (was: 1h)
> InterruptedByTimeoutException occurring in client despite keepalive global
> request being sent
> ---------------------------------------------------------------------------------------------
>
> Key: SSHD-901
> URL: https://issues.apache.org/jira/browse/SSHD-901
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 2.2.0
> Environment: Windows 10
> Reporter: Jared Wiltshire
> Assignee: Lyor Goldstein
> Priority: Major
> Fix For: 2.3.0
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> This may be related to SSHD-891 but I couldn't follow that issue exactly.
> I was noticed that after exactly 10 minutes and 15 minutes a
> java.nio.channels.InterruptedByTimeoutException exception was being thrown by
> the client. After a little digging I discovered that this is the default
> value for NIO2_READ_TIMEOUT. This is the stack trace -
> {code:java}
> ERROR 2019-02-25T17:25:16,879
> (com.infiniteautomation.mango.cloudConnect.client.CloudConnectClient$ClientSessionListener.sessionException:83)
> - Session exception, session
> ClientSessionImpl[mango@localhost/127.0.0.1:9005]
> java.nio.channels.InterruptedByTimeoutException: null
> at
> sun.nio.ch.WindowsAsynchronousSocketChannelImpl$ReadTask.timeout(WindowsAsynchronousSocketChannelImpl.java:614)
> ~[?:1.8.0_144]
> at
> sun.nio.ch.WindowsAsynchronousSocketChannelImpl$2.run(WindowsAsynchronousSocketChannelImpl.java:649)
> ~[?:1.8.0_144]
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> ~[?:1.8.0_144]
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> ~[?:1.8.0_144]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> ~[?:1.8.0_144]
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> ~[?:1.8.0_144]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> ~[?:1.8.0_144]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> ~[?:1.8.0_144]
> at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]
> {code}
> Now I have the heat beat interval (ClientFactoryManager.HEARTBEAT_INTERVAL)
> property set to less than 10 minutes and I verified that the global request
> is indeed being sent and received by the server.
> However I think that the issue is that the global request is sent with
> wantReply set to false. So the server does not reply with anything and the
> client does not read any data from the socket and hence times out.
> Does it not make sense for the server to reply? I believe this is a self
> defined global request (not in the SSH RFC) so we should be able change its
> behavior.
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