[
https://issues.apache.org/jira/browse/HBASE-16438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15953981#comment-15953981
]
Anastasia Braginsky commented on HBASE-16438:
---------------------------------------------
[~anoop.hbase] and [~ram_krish],
it looks like we all agree to put the seqID in the data-chunk (not in index)
together with the key, value and etc. This can be done by creating a new type
of Cell that doesn't include seqID as a field.
bq. Am just getting confused here. When you say ChunkCell are you telling the
BBChunkCell in current patch? In current patch there is no extra overhead at
all. But if you are talking about the cell to be moved to CellChunkMap - yes
then it will have some overhead in terms of serialization and not in terms of
heap overhead
I am talking about the Cell-representation that is going to be part of
CellChunkMap. I am confused here by myself and don't know what is exactly the
name of such cell. But I need a constant saying how many bytes such a Cell
takes...
> Create a cell type so that chunk id is embedded in it
> -----------------------------------------------------
>
> Key: HBASE-16438
> URL: https://issues.apache.org/jira/browse/HBASE-16438
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Attachments: HBASE-16438_1.patch,
> HBASE-16438_3_ChunkCreatorwrappingChunkPool.patch,
> HBASE-16438_4_ChunkCreatorwrappingChunkPool.patch,
> HBASE-16438_8_ChunkCreatorwrappingChunkPool_withchunkRef.patch,
> HBASE-16438_9_ChunkCreatorwrappingChunkPool_withchunkRef.patch,
> HBASE-16438.patch, MemstoreChunkCell_memstoreChunkCreator_oldversion.patch,
> MemstoreChunkCell_trunk.patch
>
>
> For CellChunkMap we may need a cell such that the chunk out of which it was
> created, the id of the chunk be embedded in it so that when doing flattening
> we can use the chunk id as a meta data. More details will follow once the
> initial tasks are completed.
> Why we need to embed the chunkid in the Cell is described by [~anastas] in
> this remark over in parent issue
> https://issues.apache.org/jira/browse/HBASE-14921?focusedCommentId=15244119&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15244119
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
