Shalin Shekhar Mangar created SOLR-11061:
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Summary: Add a spins metric for all directory paths
Key: SOLR-11061
URL: https://issues.apache.org/jira/browse/SOLR-11061
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: metrics
Reporter: Shalin Shekhar Mangar
Fix For: 7.1
See org.apache.lucene.util.IOUtils.spins. It currently only works for linux and
is used by ConcurrentMergeScheduler to set defaults for maxThreadCount and
maxMergeCount.
We should expose this as a metric for solr.data.home and each core's data dir.
One thing to note is that the CMS overrides the value detected by the spins
method using {{lucene.cms.override_spins}} system property. This property is
supposed to be for tests but if it is set then the metrics API should also take
that into account.
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