Ashu Pachauri created HBASE-17117: ------------------------------------- Summary: Reversed scan returns deleted versions and breaks RegionLocator Key: HBASE-17117 URL: https://issues.apache.org/jira/browse/HBASE-17117 Project: HBase Issue Type: Bug Components: Scanners Affects Versions: 1.3.0 Reporter: Ashu Pachauri Priority: Blocker Fix For: 1.3.0
We started seeing clients persistently throwing errors as they were trying to talk to a region that was non existent (split a few days ago). We verified that the region was deleted from meta when the split happened. On performing a raw scan on meta, the deleted version for the split region appears, which also does on performing a normal reversed scan. Since MetaScanner uses a reversed scan, this explains why clients see non existent regions. We also verified that there was no in-memory corrupt state by failing over the master. When we trigger major compaction on meta, the problem goes away further confirming the fact that we were seeing deleted versions. -- This message was sent by Atlassian JIRA (v6.3.4#6332)