Nick Dimiduk created HBASE-10660: ------------------------------------ Summary: MR over snapshots can OOM when alternative blockcache is enabled Key: HBASE-10660 URL: https://issues.apache.org/jira/browse/HBASE-10660 Project: HBase Issue Type: Bug Components: mapreduce Affects Versions: 0.98.0, 0.99.0 Reporter: Nick Dimiduk Assignee: Nick Dimiduk
Running {{IntegrationTestTableSnapshotInputFormat}} with the {{BucketCache}} enabled results in OOM. The map task is running a sequential scan over the region region it opened, so probably it's not benefiting much from a blockcache. Just disable blockcache entirely for these scans because it's likely the cache config detected is designed for a RS running on a different class of hardware than that running the map task. -- This message was sent by Atlassian JIRA (v6.2#6252)