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Jonathan Hsieh commented on HBASE-7764: --------------------------------------- Moreover, if it is the case, this means we should change the other online snapshotting tests so that they don't encounter this split conflict (since we aren't testing for that). > [snapshot 130201 merge] Fix TestSnapshotCloneIndependence failure > ----------------------------------------------------------------- > > Key: HBASE-7764 > URL: https://issues.apache.org/jira/browse/HBASE-7764 > Project: HBase > Issue Type: Sub-task > Reporter: Ted Yu > Assignee: Ted Yu > Attachments: 7764.txt, 7764-v2.txt, 7764-v3.txt > > > Here is log snippet for > TestSnapshotCloneIndependence#testOnlineSnapshotRegionOperationsIndependent > (pay attention to region 1360020297284.2e43e47a882d3cff601eb222cad41f20.): > {code} > 2013-02-04 15:24:58,369 INFO > [MASTER_SERVER_OPERATIONS-10.11.2.194,61955,1360020289835-0] > handler.SplitRegionHandler(115): Handled SPLIT event; > parent=test1360020295791,,1360020295793.794d37c0445b61619b5056623228827d. > daughter > a=test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20.daughter > b=test1360020295791,dgb,1360020297284.b87834cee60702d883aa287df6aaeaef. > ... > 2013-02-04 15:25:02,005 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > snapshot.FlushSnapshotSubprocedure$RegionSnapshotTask(78): Starting region > operation on > test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20. > 2013-02-04 15:25:02,005 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > snapshot.FlushSnapshotSubprocedure$RegionSnapshotTask(81): Flush Snapshotting > region test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20. > started... > 2013-02-04 15:25:02,005 DEBUG [member: > '10.11.2.194,61958,1360020290064' subprocedure-pool3-thread-1] > snapshot.RegionServerSnapshotManager$SnapshotSubprocedurePool(318): Completed > 2/3 local region snapshots. > 2013-02-04 15:25:02,005 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > regionserver.HRegion(2485): Storing region-info for snapshot. > 2013-02-04 15:25:02,006 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > util.FSUtils(166): Creating > file=hdfs://localhost:61942/user/tyu/hbase/.snapshot/.tmp/snapshot_test1360020295791/2e43e47a882d3cff601eb222cad41f20/.tmp/.regioninfo > with permission=rwxrwxrwx > 2013-02-04 15:25:02,014 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > regionserver.HRegion(2489): Creating references for hfiles > 2013-02-04 15:25:02,014 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > regionserver.HRegion(2502): Adding snapshot references for > [hdfs://localhost:61942/user/tyu/hbase/test1360020295791/2e43e47a882d3cff601eb222cad41f20/fam/946b75e5f0ba445aa1c646b8cbc87e02] > hfiles > 2013-02-04 15:25:02,015 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > regionserver.HRegion(2516): Creating reference for file (1/1) : > hdfs://localhost:61942/user/tyu/hbase/test1360020295791/2e43e47a882d3cff601eb222cad41f20/fam/946b75e5f0ba445aa1c646b8cbc87e02 > 2013-02-04 15:25:02,017 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > snapshot.FlushSnapshotSubprocedure$RegionSnapshotTask(84): ... Flush > Snapshotting region > test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20. completed. > 2013-02-04 15:25:02,017 DEBUG > [rs(10.11.2.194,61958,1360020290064)-snapshot-pool5-thread-1] > snapshot.FlushSnapshotSubprocedure$RegionSnapshotTask(86): Closing region > operation on > test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20. > ... > 2013-02-04 15:25:03,836 INFO [PRI IPC Server handler 7 on 61958] > regionserver.HRegionServer(3600): Splitting > test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20. > 2013-02-04 15:25:03,836 DEBUG [PRI IPC Server handler 7 on 61958] > regionserver.HStore(1686): cannot split because midkey is the same as first > or last row > 2013-02-04 15:25:03,836 DEBUG [PRI IPC Server handler 7 on 61958] > regionserver.CompactSplitThread(172): Region > test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20. not > splittable because midkey=null > 2013-02-04 15:25:03,837 DEBUG [main] catalog.CatalogTracker(231): Stopping > catalog tracker org.apache.hadoop.hbase.catalog.CatalogTracker@5c602d9d > 2013-02-04 15:25:03,838 INFO [main] > client.TestSnapshotCloneIndependence(307): split requested for > test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20. > 2013-02-04 15:25:03,892 DEBUG [main] client.MetaScanner(199): Scanning .META. > starting at row=test1360020295791,,00000000000000 for max=2147483647 rows > using hconnection 0x53d9f80 > 2013-02-04 15:25:03,895 DEBUG [main] client.MetaScanner(252): Current INFO > from scan results = {NAME => > 'test1360020295791,,1360020295793.794d37c0445b61619b5056623228827d.', > STARTKEY => '', ENDKEY => '', ENCODED => > 794d37c0445b61619b5056623228827d, OFFLINE => true, SPLIT => true,} > 2013-02-04 15:25:03,896 DEBUG [main] client.MetaScanner(252): Current INFO > from scan results = {NAME => > 'test1360020295791,,1360020295793.794d37c0445b61619b5056623228827d.', > STARTKEY => '', ENDKEY => '', ENCODED => > 794d37c0445b61619b5056623228827d, OFFLINE => true, SPLIT => true,} > 2013-02-04 15:25:03,896 DEBUG [main] > client.MetaScanner$BlockingMetaScannerVisitor(441): blocking until region is > in META: test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20. > 2013-02-04 15:25:03,897 DEBUG [main] client.MetaScanner(252): Current INFO > from scan results = {NAME => > 'test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20.', > STARTKEY => '', ENDKEY => 'dgb', ENCODED => > 2e43e47a882d3cff601eb222cad41f20,} > 2013-02-04 15:25:03,898 DEBUG [main] client.MetaScanner(252): Current INFO > from scan results = {NAME => > 'test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20.', > STARTKEY => '', ENDKEY => 'dgb', ENCODED => > 2e43e47a882d3cff601eb222cad41f20,} > 2013-02-04 15:25:03,898 DEBUG [main] client.MetaScanner(252): Current INFO > from scan results = {NAME => > 'test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20.', > STARTKEY => '', ENDKEY => 'dgb', ENCODED => > 2e43e47a882d3cff601eb222cad41f20,} > 2013-02-04 15:25:03,898 DEBUG [main] client.MetaScanner(252): Current INFO > from scan results = {NAME => > 'test1360020295791,,1360020297284.2e43e47a882d3cff601eb222cad41f20.', > STARTKEY => '', ENDKEY => 'dgb', ENCODED => > 2e43e47a882d3cff601eb222cad41f20,} > {code} > In the code we choose the first region from the original table to split which > happens to be not splittable. -- This message is automatically generated by JIRA. 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