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https://issues.apache.org/jira/browse/AMQ-8471?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17487969#comment-17487969
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Jean-Baptiste Onofré commented on AMQ-8471:
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I tested (on linux and mac): zsh and bash without problem.
Unfortunately, I don't have any AIX physical machine. Let me check with qemu or
virtualbox if I can run x86 AIX (no way for PowerPC).
Are you able to reproduce on a Linux ? Can you describe a bit your linux distro
in order for me to try ?
> activemq stop command fails with no or outdated process id
> ----------------------------------------------------------
>
> Key: AMQ-8471
> URL: https://issues.apache.org/jira/browse/AMQ-8471
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.16.2
> Reporter: shrihari
> Assignee: Jean-Baptiste Onofré
> Priority: Major
> Attachments: image-2022-02-07-10-21-19-913.png,
> image-2022-02-07-10-21-39-782.png
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In some AIX/Linux environments, the activemq stop command fails with the
> below error.
> bash-4.4# ./activemq stop
> INFO: Loading '/AMQ/message-broker/bin/env'
> INFO: Using java '/usr/java8_64/bin/java'
> ERROR: No or outdated process id in '/AMQ/message-broker//data/activemq.pid'
> INFO: Removing /AMQ/message-broker//data/activemq.pid
>
> The fix provided in https://issues.apache.org/jira/browse/AMQ-8425 doesn't
> work in such environments as the issue is not due to the user/terminal
> instance.
>
> Workaround:
> Some AIX/linux environments are highly sensitive to the *acute/backquot*
> *character `*
> Backquot character reference :
> [https://www.computerhope.com/jargon/b/backquot.htm]
> Update the file <AMQ_HOME>/message-broker/bin/activemq as below :
> Change the line by removing backquot character :
> RET="`ps -eo "pid,args" | grep "\s*$activemq_pid\s.java"`" to RET="ps -eo
> "pid,args" | grep "\s$activemq_pid\s.*java""
> This will be inside checkRunning() function.
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