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Posted to issues@hbase.apache.org by "ramkrishna.s.vasudevan (JIRA)" <ji...@apache.org> on 2016/10/06 08:52:20 UTC
[jira] [Resolved] (HBASE-16372) References to previous cell in read
path should be avoided
[ https://issues.apache.org/jira/browse/HBASE-16372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ramkrishna.s.vasudevan resolved HBASE-16372.
--------------------------------------------
Resolution: Fixed
> References to previous cell in read path should be avoided
> ----------------------------------------------------------
>
> Key: HBASE-16372
> URL: https://issues.apache.org/jira/browse/HBASE-16372
> Project: HBase
> Issue Type: Sub-task
> Components: Scanners
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Priority: Blocker
> Fix For: 2.0.0
>
> Attachments: HBASE-16372_1.patch, HBASE-16372_10.patch, HBASE-16372_2.patch, HBASE-16372_3.patch, HBASE-16372_5_withfactory.patch, HBASE-16372_6_withfactory.patch, HBASE-16372_7_withfactory.patch, HBASE-16372_9.patch, HBASE-16372_testcase.patch, HBASE-16372_testcase_1.patch
>
>
> Came as part of review discussion in HBASE-15554. If there are references kept to previous cells in the read path, with the Ref count based eviction mechanism in trunk, then chances are there to evict a block backing the previous cell but the read path still does some operations on that garbage collected previous cell leading to incorrect results.
> Areas to target
> -> Storescanner
> -> Bloom filters (particularly in compaction path)
> Thanks to [~anoop.hbase] to point out this in bloomfilter path. But we found it could be in other areas also.
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