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From Jean-Daniel Cryans <jdcry...@apache.org>
Subject Re: HBase 0.20.5 issues
Date Thu, 01 Jul 2010 18:18:23 GMT
(sorry it took so long to answer, we were all busy with the various
meetings around the Bay Area)

I can see the issue:

2010-06-30 13:48:16,135 DEBUG master.BaseScanner
(BaseScanner.java:checkAssigned(580)) - Current assignment of
.META.,,1 is not valid;  serverAddress=, startCode=0 unknown.
...
2010-06-30 13:48:26,967 INFO  master.RegionServerOperation
(ProcessRegionOpen.java:process(80)) - Updated row .META.,,1 in region
-ROOT-,,0 with startcode=1277894894819, server=192.168.242.142:60020
2010-06-30 13:48:26,968 DEBUG master.RegionServerOperation
(ProcessRegionOpen.java:process(98)) - Adding to onlineMetaRegions:
{server: 192.168.242.142:60020, regionname: .META.,,1, startKey: <>}
...
2010-06-30 13:49:13,050 DEBUG master.BaseScanner
(BaseScanner.java:checkAssigned(580)) - Current assignment of
.META.,,1 is not valid;  serverAddress=192.168.242.142:60020,
startCode=1277894894819 unknown.
...
2010-06-30 13:49:13,176 INFO  master.RegionServerOperation
(ProcessRegionOpen.java:process(80)) - Updated row .META.,,1 in region
-ROOT-,,0 with startcode=1277894893999, server=192.168.242.145:60020
2010-06-30 13:49:13,176 DEBUG master.RegionServerOperation
(ProcessRegionOpen.java:process(98)) - Adding to onlineMetaRegions:
{server: 192.168.242.145:60020, regionname: .META.,,1, startKey: <>}
...

This is https://issues.apache.org/jira/browse/hbase-2599. We didn't
apply it on branch because it was breaking rolling restarts but you
can safely apply the patch before a cluster startup.

J-D

On Thu, Jul 1, 2010 at 5:03 AM, Stanislaw Kogut <skogut@sistyma.net> wrote:
> Completely changed all hadoop configuration to almost default, PE completes
> writing for 1000000 rows, but regions still come assigned to multiple RS's
>
> hbase(main):001:0> status 'detailed'
> version 0.20.5
> 0 regionsInTransition
> 6 live servers
>    uasstse005.ua.sistyma.com:60020 1277985198620
>        requests=0, regions=2, usedHeap=25, maxHeap=1196
>        .META.,,1
>            stores=2, storefiles=0, storefileSizeMB=0, memstoreSizeMB=0,
> storefileIndexSizeMB=0
>        -ROOT-,,0
>            stores=1, storefiles=3, storefileSizeMB=0, memstoreSizeMB=0,
> storefileIndexSizeMB=0
>    stas-node.ua.sistyma.com:60020 1277985198573
>        requests=0, regions=1, usedHeap=22, maxHeap=1996
>        .META.,,1
>            stores=2, storefiles=0, storefileSizeMB=0, memstoreSizeMB=0,
> storefileIndexSizeMB=0
>    uasstse004.ua.sistyma.com:60020 1277985198572
>        requests=0, regions=1, usedHeap=23, maxHeap=1996
>        .META.,,1
>            stores=2, storefiles=0, storefileSizeMB=0, memstoreSizeMB=0,
> storefileIndexSizeMB=0
>    uasstse006.ua.sistyma.com:60020 1277985198554
>        requests=0, regions=0, usedHeap=33, maxHeap=1196
>    uasstse002.ua.sistyma.com:60020 1277985198667
>        requests=0, regions=1, usedHeap=34, maxHeap=1996
>        .META.,,1
>            stores=2, storefiles=0, storefileSizeMB=0, memstoreSizeMB=0,
> storefileIndexSizeMB=0
>    uasstse003.ua.sistyma.com:60020 1277985198550
>        requests=0, regions=1, usedHeap=22, maxHeap=1996
>        .META.,,1
>            stores=2, storefiles=0, storefileSizeMB=0, memstoreSizeMB=0,
> storefileIndexSizeMB=0
> 0 dead servers
>
>

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