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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