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https://issues.apache.org/jira/browse/HBASE-19607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16318107#comment-16318107
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Chia-Ping Tsai commented on HBASE-19607:
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[~stana] Any updates?
> throw the exception if memstore is incompetent to do the deep clone for cell
> ----------------------------------------------------------------------------
>
> Key: HBASE-19607
> URL: https://issues.apache.org/jira/browse/HBASE-19607
> Project: HBase
> Issue Type: Bug
> Reporter: Chia-Ping Tsai
> Assignee: Yung-An He
> Priority: Trivial
>
> We must to clone the cell since the cell is backed by the reusable byte
> array. Also, we assume all cells passed to AbstractMemStore is of
> ExtendedCell. Not only is the type check unnecessary, but it also confuses
> the readers.
> {code:title=AbstractMemStore.java}
> private static Cell deepCopyIfNeeded(Cell cell) {
> if (cell instanceof ExtendedCell) {
> return ((ExtendedCell) cell).deepClone();
> }
> return cell;
> }
> {code}
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