Anoop Sam John created HBASE-16205:
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Summary: When Cells are not copied to MSLAB, deep clone it while
adding to Memstore
Key: HBASE-16205
URL: https://issues.apache.org/jira/browse/HBASE-16205
Project: HBase
Issue Type: Sub-task
Reporter: Anoop Sam John
Assignee: Anoop Sam John
This is imp after HBASE-15180 optimization. After that we the cells flowing in
write path will be backed by the same byte[] where the RPC read the request
into. By default we have MSLAB On and so we have a copy operation while adding
Cells to memstore. This copy might not be there if
1. MSLAB is turned OFF
2. Cell size is more than a configurable max size. This defaults to 256 KB
3. If the operation is Append/Increment.
In such cases, we should just clone the Cell into a new byte[] and then add to
memstore. Or else we keep referring to the bigger byte[] chunk for longer time.
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