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From "Jason Gerlowski (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-11179) Ability to dump jstack
Date Wed, 02 Aug 2017 13:48:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-11179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16110934#comment-16110934
] 

Jason Gerlowski commented on SOLR-11179:
----------------------------------------

A few initial comments.  Some/many of these are opinions, so feel free to disregard those
you don't care for...

- are we planning on supporting the jstack mode on Windows (solr.cmd) too?  If so, similar
changes need made to that file too.
- it might be nice to have a {{-o}} flag to specify the output file.
- even if we don't want to support user-specified output file names, it might be nice to at
least support outputting straight to stdout so users can pipe to other shell commands.  Maybe
this doesn't make a ton of sense for jstack output, just something to consider.
- I don't know much about jstack, but I'd guess that this command will only work in certain
circumstances.  Does Solr have to be on the same box?  Are there any options that must be
enabled at Solr-startup?  We should probably store these notes in the Usage text for this
command.
- Speaking of documentation, if you'd like, this command could be added to the Solr Ref Guide
documentation in the file: {{./src/solr-control-script-reference.adoc}}

> Ability to dump jstack
> ----------------------
>
>                 Key: SOLR-11179
>                 URL: https://issues.apache.org/jira/browse/SOLR-11179
>             Project: Solr
>          Issue Type: New Feature
>          Components: scripts and tools
>            Reporter: Ramsey Haddad
>            Priority: Minor
>         Attachments: SOLR-11179.patch
>
>
> Add a "jstack" command to the "bin/solr" script to ease capture of jstacks.



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