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From "Prakash Khemani (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-3823) NPE in ZKAssign.transitionNode
Date Tue, 26 Apr 2011 19:31:09 GMT
NPE in ZKAssign.transitionNode
------------------------------

                 Key: HBASE-3823
                 URL: https://issues.apache.org/jira/browse/HBASE-3823
             Project: HBase
          Issue Type: Bug
            Reporter: Prakash Khemani


This issue led to a region being multiply assigned.

hbck output
ERROR: Region realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
is listed in META on region server pumahbase107.snc5.facebook.com:60020 but is multiply assigned
to region servers pumahbase150.snc5.facebook.com:60020, pumahbase107.snc5.facebook.com:60020

===


2011-04-25 09:11:36,844 ERROR org.apache.hadoop.hbase.executor.EventHandler: Caught throwable
while processing event M_RS_OPEN_REGION
java.lang.NullPointerException
        at org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:75)
        at org.apache.hadoop.hbase.executor.RegionTransitionData.fromBytes(RegionTransitionData.java:198)
        at org.apache.hadoop.hbase.zookeeper.ZKAssign.transitionNode(ZKAssign.java:672)
        at org.apache.hadoop.hbase.zookeeper.ZKAssign.transitionNodeOpened(ZKAssign.java:621)
        at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:168)
        at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:151)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)

    byte [] existingBytes =
      ZKUtil.getDataNoWatch(zkw, node, stat);
    RegionTransitionData existingData =
      RegionTransitionData.fromBytes(existingBytes);

existingBytes can be null. have to return -1 if null.


===

master logs

2011-04-25 05:24:03,250 DEBUG org.apache.hadoop.hbase.regionserver.wal.HLogSplitter: Creating
writer path=hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/recovered.edits/0000000057528037047
region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:09:19,246 INFO org.apache.hadoop.hbase.regionserver.wal.HLogSplitter: Closed
path hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/recovered.edits/0000000057528037047
(wrote 4342690 edits in 46904ms)
2011-04-25 09:09:26,134 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: master:60000-0x32f7bb74e8a0000
Creating (or updating) unassigned node for e7a478b4bd164525052f1dedb832de0a with OFFLINE state
2011-04-25 09:09:26,136 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: No previous
transition plan was found (or we are ignoring an existing plan) for realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
so generated a random one; hri=realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.,
src=, dest=pumahbase107.snc5.facebook.com,60020,1303450731227; 70 (online=70, exclude=null)
available servers
2011-04-25 09:09:26,136 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Assigning
region realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
to pumahbase107.snc5.facebook.com,60020,1303450731227
2011-04-25 09:09:26,139 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase107.snc5.facebook.com,60020,1303450731227, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:09:44,045 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase107.snc5.facebook.com,60020,1303450731227, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:09:59,050 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase107.snc5.facebook.com,60020,1303450731227, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:10:14,054 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase107.snc5.facebook.com,60020,1303450731227, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:10:29,055 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase107.snc5.facebook.com,60020,1303450731227, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:10:44,060 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase107.snc5.facebook.com,60020,1303450731227, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:10:59,062 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase107.snc5.facebook.com,60020,1303450731227, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:10:59,388 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase107.snc5.facebook.com,60020,1303450731227, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:11:33,411 INFO org.apache.hadoop.hbase.master.AssignmentManager: Regions in
transition timed out:  realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
state=OPENING, ts=1303747859386
2011-04-25 09:11:33,411 INFO org.apache.hadoop.hbase.master.AssignmentManager: Region has
been OPENING for too long, reassigning region=realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
2011-04-25 09:11:33,412 INFO org.apache.hadoop.hbase.master.AssignmentManager: Successfully
transitioned region=realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
into OFFLINE and forcing a new assignment
2011-04-25 09:11:33,412 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: No previous
transition plan was found (or we are ignoring an existing plan) for realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
so generated a random one; hri=realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.,
src=, dest=pumahbase150.snc5.facebook.com,60020,1303450731207; 70 (online=70, exclude=null)
available servers
2011-04-25 09:11:33,413 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Assigning
region realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
to pumahbase150.snc5.facebook.com,60020,1303450731207
2011-04-25 09:11:33,414 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=M_ZK_REGION_OFFLINE,
server=pumahbase162.snc5.facebook.com:60000, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:11:33,416 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase150.snc5.facebook.com,60020,1303450731207, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:11:33,825 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENING,
server=pumahbase150.snc5.facebook.com,60020,1303450731207, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:11:36,804 DEBUG org.apache.hadoop.hbase.master.AssignmentManager: Handling transition=RS_ZK_REGION_OPENED,
server=pumahbase150.snc5.facebook.com,60020,1303450731207, region=e7a478b4bd164525052f1dedb832de0a
2011-04-25 09:11:36,804 DEBUG org.apache.hadoop.hbase.master.handler.OpenedRegionHandler:
Handling OPENED event for e7a478b4bd164525052f1dedb832de0a; deleting unassigned node
2011-04-25 09:11:36,804 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: master:60000-0x32f7bb74e8a0000
Deleting existing unassigned node for e7a478b4bd164525052f1dedb832de0a that is in expected
state RS_ZK_REGION_OPENED
2011-04-25 09:11:36,805 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: master:60000-0x32f7bb74e8a0000
Successfully deleted unassigned node for region e7a478b4bd164525052f1dedb832de0a in expected
state RS_ZK_REGION_OPENED
2011-04-25 09:11:36,805 DEBUG org.apache.hadoop.hbase.master.handler.OpenedRegionHandler:
Opened region realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
on pumahbase150.snc5.facebook.com,60020,1303450731207


===

region server log

2011-04-25 09:09:26,136 INFO org.apache.hadoop.hbase.regionserver.HRegionServer: Received
request to open region: realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
2011-04-25 09:09:26,136 DEBUG org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler:
Processing open of realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
2011-04-25 09:09:26,136 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Attempting to transition node e7a478b4bd164525052f1dedb832de0a from M_ZK_REGION_OFFLINE to
RS_ZK_REGION_OPENING
2011-04-25 09:09:26,138 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Successfully transitioned node e7a478b4bd164525052f1dedb832de0a from M_ZK_REGION_OFFLINE to
RS_ZK_REGION_OPENING
2011-04-25 09:09:26,139 DEBUG org.apache.hadoop.hbase.regionserver.HRegion: Opening region:
REGION => {NAME => 'realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.',
STARTKEY => 'afffffbe', ENDKEY => 'b040ebdbf81a3750f0eaa71842ff09dagr.insomnia li 294576344998',
ENCODED => e7a478b4bd164525052f1dedb832de0a, TABLE => {{NAME => 'realtime_domain_imps_urls',
FAMILIES => [{NAME => 'COUNTERS_0', BLOOMFILTER => 'NONE', REPLICATION_SCOPE =>
'0', COMPRESSION => 'LZO', VERSIONS => '1', TTL => '2147483647', BLOCKSIZE =>
'16384', IN_MEMORY => 'false', BLOCKCACHE => 'true'}, {NAME => 'COUNTERS_3600', BLOOMFILTER
=> 'NONE', REPLICATION_SCOPE => '0', COMPRESSION => 'LZO', VERSIONS => '1', TTL
=> '172800', BLOCKSIZE => '16384', IN_MEMORY => 'false', BLOCKCACHE => 'true'},
{NAME => 'COUNTERS_86400', BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0', COMPRESSION
=> 'LZO', VERSIONS => '1', TTL => '2592000', BLOCKSIZE => '16384', IN_MEMORY =>
'false', BLOCKCACHE => 't
 rue'}]}}
2011-04-25 09:09:26,140 DEBUG org.apache.hadoop.hbase.regionserver.HRegion: Instantiated realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
2011-04-25 09:09:26,140 INFO org.apache.hadoop.hbase.regionserver.logger.HRegionLogger: HRegionLogger
for region realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.,
category nectar_titan_hbase_updates
2011-04-25 09:09:26,190 DEBUG org.apache.hadoop.hbase.regionserver.Store: loaded hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_0/87cf11f68701404b862d631ba3d20213,
isReference=false, isBulkLoadResult=false, seqid=58137870275, majorCompaction=false
2011-04-25 09:09:28,572 DEBUG org.apache.hadoop.hbase.regionserver.Store: loaded hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_0/c58d9a33653a4e5e966c426b33a57598,
isReference=false, isBulkLoadResult=false, seqid=57847795298, majorCompaction=true
2011-04-25 09:09:28,796 DEBUG org.apache.hadoop.hbase.regionserver.Store: loaded hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_3600/1bc513e915b741d59d4f113c273e67d4,
isReference=false, isBulkLoadResult=false, seqid=58137870275, majorCompaction=false
2011-04-25 09:09:28,826 DEBUG org.apache.hadoop.hbase.regionserver.Store: loaded hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_3600/5a50b17f3ad045368229680414987ae7,
isReference=false, isBulkLoadResult=false, seqid=57847795298, majorCompaction=true
2011-04-25 09:09:28,850 DEBUG org.apache.hadoop.hbase.regionserver.Store: loaded hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_86400/23648dce8d4243c5b804c0e766f5a235,
isReference=false, isBulkLoadResult=false, seqid=58137870275, majorCompaction=false
2011-04-25 09:09:29,016 DEBUG org.apache.hadoop.hbase.regionserver.Store: loaded hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_86400/d6820d86715049c087fa5c3f4355f2fc,
isReference=false, isBulkLoadResult=false, seqid=57847795298, majorCompaction=true
2011-04-25 09:09:29,017 INFO org.apache.hadoop.hbase.regionserver.HRegion: Replaying edits
from hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/recovered.edits/0000000057528037047;
minSequenceid=58137870275
2011-04-25 09:09:44,041 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Attempting to transition node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING to
RS_ZK_REGION_OPENING
2011-04-25 09:09:44,044 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Successfully transitioned node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING
to RS_ZK_REGION_OPENING
2011-04-25 09:09:59,046 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Attempting to transition node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING to
RS_ZK_REGION_OPENING
2011-04-25 09:09:59,050 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Successfully transitioned node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING
to RS_ZK_REGION_OPENING
2011-04-25 09:10:14,050 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Attempting to transition node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING to
RS_ZK_REGION_OPENING

832de0a from RS_ZK_REGION_OPENING to RS_ZK_REGION_OPENING
2011-04-25 09:10:29,055 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Successfully transitioned node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING
to RS_ZK_REGION_OPENING
2011-04-25 09:10:44,056 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Attempting to transition node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING to
RS_ZK_REGION_OPENING
2011-04-25 09:10:44,059 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Successfully transitioned node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING
to RS_ZK_REGION_OPENING
2011-04-25 09:10:59,057 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Attempting to transition node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING to
RS_ZK_REGION_OPENING
2011-04-25 09:10:59,062 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Successfully transitioned node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING
to RS_ZK_REGION_OPENING
2011-04-25 09:10:59,154 DEBUG org.apache.hadoop.hbase.regionserver.HRegion: Started memstore
flush for realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.,
current region memstore size 18.9m; wal is null, using passed sequenceid=58140219688
2011-04-25 09:10:59,277 INFO org.apache.hadoop.hbase.regionserver.Store: Flushed , sequenceid=58140219688,
memsize=12.4m, into tmp file hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/.tmp/a1df4f1ac37a4c7fbf4067f3bcff49a5
2011-04-25 09:10:59,312 INFO org.apache.hadoop.hbase.regionserver.Store: Flushed , sequenceid=58140219688,
memsize=3.2m, into tmp file hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/.tmp/eefd1540ca644f06b251201894ef5dd8
2011-04-25 09:10:59,357 INFO org.apache.hadoop.hbase.regionserver.Store: Flushed , sequenceid=58140219688,
memsize=3.2m, into tmp file hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/.tmp/83c87fcdbf7147ceac873a1e97e2990f
2011-04-25 09:10:59,357 INFO org.apache.hadoop.hbase.regionserver.Store: Renaming flushed
file at hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/.tmp/a1df4f1ac37a4c7fbf4067f3bcff49a5
to hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_0/a1df4f1ac37a4c7fbf4067f3bcff49a5
2011-04-25 09:10:59,372 INFO org.apache.hadoop.hbase.regionserver.Store: Added hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_0/a1df4f1ac37a4c7fbf4067f3bcff49a5,
entries=45626, sequenceid=58140219688, filesize=549.1k
2011-04-25 09:10:59,372 INFO org.apache.hadoop.hbase.regionserver.Store: Renaming flushed
file at hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/.tmp/eefd1540ca644f06b251201894ef5dd8
to hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_3600/eefd1540ca644f06b251201894ef5dd8
2011-04-25 09:10:59,375 INFO org.apache.hadoop.hbase.regionserver.Store: Added hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_3600/eefd1540ca644f06b251201894ef5dd8,
entries=11411, sequenceid=58140219688, filesize=167.9k
2011-04-25 09:10:59,375 INFO org.apache.hadoop.hbase.regionserver.Store: Renaming flushed
file at hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/.tmp/83c87fcdbf7147ceac873a1e97e2990f
to hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_86400/83c87fcdbf7147ceac873a1e97e2990f
2011-04-25 09:10:59,378 INFO org.apache.hadoop.hbase.regionserver.Store: Added hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/COUNTERS_86400/83c87fcdbf7147ceac873a1e97e2990f,
entries=11404, sequenceid=58140219688, filesize=161.5k
2011-04-25 09:10:59,378 INFO org.apache.hadoop.hbase.regionserver.HRegion: Finished memstore
flush of ~18.9m for region realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
in 224ms, sequenceid=58140219688, compaction requested=true; wal=null
2011-04-25 09:10:59,385 DEBUG org.apache.hadoop.hbase.regionserver.HRegion: Deleted recovered.edits
file=hdfs://pumahbase002-snc5-dfs.data.facebook.com:9000/PUMAHBASE002-SNC5-HBASE/realtime_domain_imps_urls/e7a478b4bd164525052f1dedb832de0a/recovered.edits/0000000057528037047
2011-04-25 09:10:59,385 INFO org.apache.hadoop.hbase.regionserver.HRegion: Onlined realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.;
next sequenceid=58140219689
2011-04-25 09:10:59,385 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Attempting to transition node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING to
RS_ZK_REGION_OPENING
2011-04-25 09:10:59,388 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Successfully transitioned node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING
to RS_ZK_REGION_OPENING
2011-04-25 09:11:36,843 INFO org.apache.hadoop.hbase.catalog.MetaEditor: Updated row realtime_domain_imps_urls,afffffbe,1295556905482.e7a478b4bd164525052f1dedb832de0a.
in region .META.,,1 with server=pumahbase107.snc5.facebook.com:60020, startcode=1303450731227
2011-04-25 09:11:36,843 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:60020-0x22f7bb74e8e000a
Attempting to transition node e7a478b4bd164525052f1dedb832de0a from RS_ZK_REGION_OPENING to
RS_ZK_REGION_OPENED
java.lang.NullPointerException

===


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