[HBASE-23363] MobCompactionChore takes a long time to complete once job

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 2.1.1, 2.2.2
• Component/s: mob
• Assignee: Unassigned
• Reporter: Bo Cui
• Created: 04/Dec/19 03:02
• Updated: 05/Mar/20 17:29
• Resolved: 05/Mar/20 17:29

Description

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....

MobCompactionChore#chore() {
   ...
   for (TableDescriptor htd : map.values()) {
      ...
      for (ColumnFamilyDescriptor hcd : htd.getColumnFamilies()) {
         if hcd is mob{
            MobUtils.doMobCompaction;
         }
      }
      ...
   }
   ...
}

Issue Links

• is related to: HBASE-22749 Distributed MOB compactions