Christine Poerschke created SOLR-11233:
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Summary: GC_LOG_OPTS customisation is a little confusing
Key: SOLR-11233
URL: https://issues.apache.org/jira/browse/SOLR-11233
Project: Solr
Issue Type: Task
Reporter: Christine Poerschke
Priority: Minor
{{GC_LOG_OPTS}} customisation is currently supported but (pre Java 9) the
customised settings are supplemented e.g.
https://github.com/apache/lucene-solr/blob/releases/lucene-solr/6.6.0/solr/bin/solr#L1713
{code}
GC_LOG_OPTS+=("$gc_log_flag:$SOLR_LOGS_DIR/solr_gc.log"
'-XX:+UseGCLogFileRotation' '-XX:NumberOfGCLogFiles=9' '-XX:GCLogFileSize=20M')
{code}
This seems unexpected and confusing. Some ideas for making it less confusing:
* a new {{GC_LOG_FILE_OPTS}} option
** the new option can be customised but if unset it would default to existing
behaviour
* use customised GC_LOG_OPTS 'as is'
** this would be a change to existing behaviour i.e. the
[solr#L1713|https://github.com/apache/lucene-solr/blob/releases/lucene-solr/6.6.0/solr/bin/solr#L1713]
settings mentioned above would no longer be appended
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