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Posted to issues@hbase.apache.org by "Guanghao Zhang (JIRA)" <ji...@apache.org> on 2018/10/29 12:23:00 UTC
[jira] [Comment Edited] (HBASE-21388) No need to instantiate
MemStoreLAB for master which not carry table
[ https://issues.apache.org/jira/browse/HBASE-21388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16667116#comment-16667116 ]
Guanghao Zhang edited comment on HBASE-21388 at 10/29/18 12:22 PM:
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{quote}So there is no space reserved for these chunks.
{quote}
So the chunk is lazy created? Only create chunk when need?
was (Author: zghaobac):
{quote}So there is no space reserved for these chunks.
{quote}
So the chunk is created lazied? Only create chunk when need?
> No need to instantiate MemStoreLAB for master which not carry table
> -------------------------------------------------------------------
>
> Key: HBASE-21388
> URL: https://issues.apache.org/jira/browse/HBASE-21388
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 3.0.0, 2.2.0, 2.1.1, 2.0.2
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Priority: Major
> Attachments: HBASE-21388.master.001.patch, HBASE-21388.master.002.patch
>
>
> We found this log in our master.
> 2018-10-26,10:00:00,449 INFO [master/c4-hadoop-tst-ct16:42900:becomeActiveMaster] org.apache.hadoop.hbase.regionserver.ChunkCreator: Allocating data MemStoreChunkPool with chunk size 2 MB, max count 737, initial count 0
> 2018-10-26,10:00:00,452 INFO [master/c4-hadoop-tst-ct16:42900:becomeActiveMaster] org.apache.hadoop.hbase.regionserver.ChunkCreator: Allocating index MemStoreChunkPool with chunk size 204.80 KB, max count 819, initial count 0
>
> Same with HBASE-21290, we don't need to instantiate MemStore for master which not carry table.
>
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