Nick Dimiduk created HBASE-10500: ------------------------------------ Summary: hbck and OOM when BucketCache is enabled Key: HBASE-10500 URL: https://issues.apache.org/jira/browse/HBASE-10500 Project: HBase Issue Type: Bug Components: hbck Affects Versions: 0.98.0 Reporter: Nick Dimiduk Assignee: Nick Dimiduk
Running {{hbck --repair}} when BucketCache is enabled in offheap mode can cause OOM. This is apparently because {{bin/hbase}} does not include $HBASE_REGIONSERVER_OPTS for hbck. It instantiates an HRegion instance as part of HDFSIntegrityFixer.handleHoleInRegionChain. That HRegion initializes its CacheConfig, which doesn't have the necessary Direct Memory. Possible solutions include: - disable blockcache in the config used by hbck when running its repairs - include HBASE_REGIONSERVER_OPTS in the HBaseFSCK startup arguments I'm leaning toward the former because it's possible that hbck is run on a host with the same hardware profile as the RS. -- This message was sent by Atlassian JIRA (v6.1.5#6160)