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https://issues.apache.org/jira/browse/HBASE-23363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16987548#comment-16987548
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Vladimir Rodionov commented on HBASE-23363:
-------------------------------------------
Please, refer to HBASE-22749, for the new distributed MOB compaction
implementation. This is going to be next MOB soon. I do not think, anybody
will be working on optimizing old MOB compaction.
> MobCompactionChore takes a long time to complete once job
> ---------------------------------------------------------
>
> Key: HBASE-23363
> URL: https://issues.apache.org/jira/browse/HBASE-23363
> Project: HBase
> Issue Type: Bug
> Components: mob
> Affects Versions: 2.1.1, 2.2.2
> Reporter: Bo Cui
> Priority: Major
> Attachments: image-2019-12-04-11-01-20-352.png
>
>
> mob table compcation is done in master
> poolSize of hbase choreService is 1
> if hbase has 1000 mob table,MobCompactionChore takes a long time to complete
> once job, other chore need to wait....
> !image-2019-12-04-11-01-20-352.png!
> {code:java}
> MobCompactionChore#chore() {
> ...
> for (TableDescriptor htd : map.values()) {
> ...
> for (ColumnFamilyDescriptor hcd : htd.getColumnFamilies()) {
> if hcd is mob{
> MobUtils.doMobCompaction;
> }
> }
> ...
> }
> ...
> }
> {code}
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