Anoop Sam John commented on HBASE-16372:

Will check this by tomorrow.

> 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: Critical
>             Fix For: 2.0.0
>         Attachments: HBASE-16372_1.patch, HBASE-16372_2.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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