Fabrizio Fortino created SOLR-10150:
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Summary: Solr 6.4 up to 10x slower than 6.3
Key: SOLR-10150
URL: https://issues.apache.org/jira/browse/SOLR-10150
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Fabrizio Fortino
We noticed a considerable performance degradation (5x to 10x) using Solr 6.4
and huge increase of CPU utilization. Our use case is pretty simple: we have a
single Solr Core with around 600K small size documents. We just do lookups by
key (no full text searches) and use faceting capabilities.
Using the Solr Admin Thread Dump utilities we noticed a lot of threads using
considerable cpuTime / userTime on codehale metrics (snapshot attached). The
metrics part has been drastically changed in 6.4
(https://issues.apache.org/jira/browse/SOLR-4735). Rolling back to Solr 6.3 has
solved our performance problems.
Is there any way to disable these metrics in version 6.4 ?
Thanks!
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