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https://issues.apache.org/jira/browse/HBASE-11325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14027514#comment-14027514
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Matteo Bertozzi commented on HBASE-11325:
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the validation assumes that the buffer is of the correct length, if it is not
you will get an index error or something like that.
also instead of the 2 * KEY_LENGTH_SIZE + 2, there are constants like
KEY_INFRASTRUCTURE_SIZE, ROW_LENGTH_SIZE, FAMILY_LENGTH_SIZE, TIMESTAMP_SIZE,
...
> Malformed RPC calls can corrupt stores
> --------------------------------------
>
> Key: HBASE-11325
> URL: https://issues.apache.org/jira/browse/HBASE-11325
> Project: HBase
> Issue Type: Bug
> Components: Client, regionserver
> Affects Versions: 0.94.20
> Reporter: Esteban Gutierrez
> Attachments: HBASE-11325.patch
>
>
> We noticed in a cluster a Region Server that aborted with a
> DroppedSnapshotException due an IOException in ScanWildcardColumnTracker when
> the RS tried to flush the memstore. After further research it was found that
> a client was sending corrupt RPCs requests to the RS and those corrupt
> requests ended into the stores causing corruption of the memstore itself and
> in some cases HFiles. More details to follow.
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