Harish Kumar Murugesan created SOLR-15878:
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Summary: Memory leak in QueryResultsCache
Key: SOLR-15878
URL: https://issues.apache.org/jira/browse/SOLR-15878
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: query
Affects Versions: 7.5
Reporter: Harish Kumar Murugesan
There is a leak in memory observed when we set _maxRamMB_ parameter in
QueryResultsCache. In our cache we have set the below configuration:
_<queryResultCache class="solr.FastLRUCache" size="5000" initialSize="512"
maxRamMB="1048" autowarmCount="0"/>_
The number of elements in the cache grown upto 320K in count and the size of
the cache also went upto 9GB. Only inserts were happening to the cache and no
evictions observed in the cache. Cache was not getting controlled by both size
and maxRamMB parameters. If we remove maxRamMB parameter and set only the size
parameter then the QueryResultsCache is not growing beyond the limit set in
size parameter. This is observed in SOLR 7.5 version.
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