Add File Count Threshold to HBCK
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Key: HBASE-3319
URL: https://issues.apache.org/jira/browse/HBASE-3319
Project: HBase
Issue Type: Improvement
Components: util
Reporter: Nicolas Spiegelberg
Priority: Minor
A useful check to add to HBCK is a way to estimate the max # of files that a
cluster should have and raise a warning/error if the file count goes above that
threshold. We ran into an issue this week where our ".oldlogs" folder filled
up to 100k files because 'hbase.master.logcleaner.maxdeletedlogs" was set too
low. We found this because of faulty region count metric in the HTTP server
that actually showed the file count. Adding an HBCK check would provide an
extra layer of detection to find leaks from new features or conservatively
configured cleanup thresholds.
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