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https://issues.apache.org/jira/browse/SOLR-14442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17095540#comment-17095540
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Christine Poerschke commented on SOLR-14442:
--------------------------------------------
Here's the commands I used to test the {{bin/solr}} changes.
* First terminal:
{code:java}
cd solr
ant dist server
bin/solr start -e techproducts -noprompt
bin/solr stop
{code}
* Second terminal:
{code:java}
curl
'http://localhost:8983/solr/techproducts/select?fl=id,popularity,score&defType=func&q=add(popularity,0)'
curl
'http://localhost:8983/solr/techproducts/select?fl=id,popularity,score&defType=func&q=add(popularity,sleep(1000,0))'
curl
'http://localhost:8983/solr/techproducts/select?fl=id,popularity,score&defType=func&q=add(popularity,sleep(234000,0))'
{code}
The last query with the sleep command needs to be run before the stop command
is issued and the sleep needs to be long enough to make the instance stopping
untimely i.e. the script waits for SOLR_STOP_WAIT of 180s and the first sleep
parameter looks to be milliseconds i.e. 234000 is 234s which is plenty over the
180s limit.
> bin/solr to attempt jstack before killing hung Solr instance
> ------------------------------------------------------------
>
> Key: SOLR-14442
> URL: https://issues.apache.org/jira/browse/SOLR-14442
> Project: Solr
> Issue Type: Improvement
> Reporter: Christine Poerschke
> Assignee: Christine Poerschke
> Priority: Minor
> Attachments: SOLR-14442.patch
>
>
> If a Solr instance did not respond to the 'stop' command in a timely manner
> then the {{bin/solr}} script will attempt to forcefully kill it:
> [https://github.com/apache/lucene-solr/blob/releases/lucene-solr/8.5.1/solr/bin/solr#L859]
> Gathering of information (e.g. a jstack of the java process) before the kill
> command may be helpful in determining why the instance did not stop as
> expected.
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