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https://issues.apache.org/jira/browse/SOLR-9168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17926922#comment-17926922
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Carlos Ugarte commented on SOLR-9168:
-------------------------------------
This is an old ticket, but as it's still open I hope the need for this is still
recognized. SOLR-8803 did remove the ability to specify an OOM handling script.
We've been using a custom startup script, and in trying to move to
{{bin/solr}} have not found a supported way to do this. Passing {{-a
-XX:OnOutOfMemoryError="/path/to/script arg1 arg2"}} to {{bin/solr}} yields
{{ERROR: -XX:OnOutOfMemoryError="..." is not supported by this script}}.
Setting {{$SOLR_ADDL_ARGS}} before invoking {{bin/solr}} did not work (the
value we provide is ignored).
Adding the following lines to {{bin/solr}} does allow us to specify the script:
{code:bash}
+ # If provided, invoke a script when an OutOfMemoryError occurs
+ if [[ -n "${SOLR_OOM_SCRIPT}" ]]; then
+ SCRIPT_SOLR_OPTS+=("-XX:OnOutOfMemoryError=$SOLR_OOM_SCRIPT")
+ fi
+
{code}
Does this seem reasonable? I imagine something similar would be added to
{{bin/solr.cmd}}. I could submit a PR with one or both changes.
Experiments using both {{-XX:OnOutOfMemoryError=script}} and
{{-XX:+CrashOnOutOfMemoryError}} showed the script ran first, and the crash via
the explicit {{-XX:+CrashOnOutOfMemoryError}} option was only triggered once
the script terminated. My read of the file [~dan2097] linked for OpenJDK 11,
17, 21 and 23 suggest the behavior is the same across all of those versions.
> Add availability to specify own oom handing script
> --------------------------------------------------
>
> Key: SOLR-9168
> URL: https://issues.apache.org/jira/browse/SOLR-9168
> Project: Solr
> Issue Type: Improvement
> Components: scripts and tools
> Affects Versions: 5.5.1
> Reporter: AngryDeveloper
> Priority: Major
> Labels: oom
> Attachments:
> 0001-SOLR-9168-Allow-users-to-specify-their-own-OnOutOfMe.patch,
> SOLR-9168-1.patch, SOLR-9168-2.patch, SOLR-9168-3.patch,
> SOLR-9168-userdefined.patch, SOLR-9168.patch, solr-crash-oom.patch
>
>
> Right now the start script always uses $SOLR_TIP/bin/oom_solr.sh to handle
> OutOfMemoryException. This script only kills instance of solr.
> We need to do some additional things (e.g sent mail about this exception)
> What do you think about adding possibility to set up own script?
> Proposition:
> {code}
> if [ -z "$SOLR_OOM_SCRIPT" ]; then
> SOLR_OOM_SCRIPT=$SOLR_TIP/bin/oom_solr.sh
> fi
> [...]
> nohup "$JAVA" "${SOLR_START_OPTS[@]}" $SOLR_ADDL_ARGS \
> "-XX:OnOutOfMemoryError=$SOLR_OOM_SCRIPT $SOLR_PORT $SOLR_LOGS_DIR" \
> -jar start.jar "${SOLR_JETTY_CONFIG[@]}" \
> 1>"$SOLR_LOGS_DIR/solr-$SOLR_PORT-console.log" 2>&1 & echo $! >
> "$SOLR_PID_DIR/solr-$SOLR_PORT.pid"
> {code}
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