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https://issues.apache.org/jira/browse/HBASE-21401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16679161#comment-16679161
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Zheng Hu commented on HBASE-21401:
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bq. Please try different key & value size, and also with or without tags?
IMO, for this patch, the diff key size & value size is not a factor that
affects performance, because we only parse the offset & len ( not read the key
bytes or value bytes). So in fact, the time cost will be same for diff key
size & diff value size. the number of tags will be a factor, but tag is only
used at server side not for normal user.
> Sanity check in BaseDecoder#parseCell
> -------------------------------------
>
> Key: HBASE-21401
> URL: https://issues.apache.org/jira/browse/HBASE-21401
> Project: HBase
> Issue Type: Sub-task
> Components: regionserver
> Reporter: Zheng Hu
> Assignee: Zheng Hu
> Priority: Critical
> Fix For: 3.0.0, 2.2.0, 2.0.3, 2.1.2
>
> Attachments: HBASE-21401.v1.patch, HBASE-21401.v2.patch,
> HBASE-21401.v3.patch, HBASE-21401.v4.patch, HBASE-21401.v4.patch,
> HBASE-21401.v5.patch
>
>
> In KeyValueDecoder & ByteBuffKeyValueDecoder, we pass a byte buffer to
> initialize the Cell without a sanity check (check each field's offset&len
> exceed the byte buffer or not), so ArrayIndexOutOfBoundsException may happen
> when read the cell's fields, such as HBASE-21379, it's hard to debug this
> kind of bug.
> An earlier check will help to find such kind of bugs.
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