Spew about rebalancing but none done....
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Key: HBASE-1868
URL: https://issues.apache.org/jira/browse/HBASE-1868
Project: Hadoop HBase
Issue Type: Bug
Environment: 0.20.0 RC2
Reporter: stack
I'm seeing loads of this in logs:
{code}
2009-09-24 21:27:22,130 DEBUG org.apache.hadoop.hbase.master.RegionManager:
Server XX.XX.XX.100,20020,1253219583523 will be unloaded for balance. Server
load: 5 avg: 3.78, regions can be moved: 4
{code}
Its like balancer is coming up w/ wrong answer to question... I don't see
subsequent stuff going on... It does it over and over for hours.
Then a split comes in and its seems to shake things up. I see it do a bunch of
assigning.
{code}
2009-09-24 21:41:02,784 INFO org.apache.hadoop.hbase.master.ServerManager:
Processing MSG_REPORT_SPLIT: locations,,1253657949707: Daughters;
locations,,1253
828460677,
locations,http:\x2F\x2Fen.wikipedia.org\x2Fwiki\x2FLarry_Lucchino,1253828460677
from aa0-009-2.u.powerset.com,20020,1253219584971; 1 of 3
2009-09-24 21:41:02,784 DEBUG org.apache.hadoop.hbase.master.RegionManager:
Assigning for address: XX.XX.XX.6:20020, startcode: 1253219584971, load: (reque
sts=5213, regions=3, usedHeap=114, maxHeap=2031): total nregions to assign=2,
nregions to reach balance=4, isMetaAssign=false
2009-09-24 21:41:02,820 DEBUG org.apache.hadoop.hbase.master.RegionManager:
Assigning for address: XX.XX.XX.96:20020, startcode: 1253219584175, load: (requ
ests=12, regions=4, usedHeap=404, maxHeap=2031): total nregions to assign=2,
nregions to reach balance=4, isMetaAssign=false
...
{code}
Then back to the 'will be unloaded'... message.
A new split comes in and then the assigning gets triggered again... a few
regions are opened but not enough.
Eventually it goes back to 'normal' (average load went to 3.85 from 3.8?)
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