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From "stack (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-4789) On split, parent region is sticking around in oldest sequenceid to region map though not online; we don't cleanup WALs.
Date Sat, 19 Nov 2011 05:04:51 GMT

     [ https://issues.apache.org/jira/browse/HBASE-4789?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-4789:
-------------------------

    Status: Patch Available  (was: Open)
    
> On split, parent region is sticking around in oldest sequenceid to region map though
not online; we don't cleanup WALs.
> -----------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4789
>                 URL: https://issues.apache.org/jira/browse/HBASE-4789
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Priority: Critical
>             Fix For: 0.92.0
>
>         Attachments: 4789-v2.txt, 4789-v3.txt, 4789.txt
>
>
> Here is log for a particular region:
> {code}
> 2011-11-15 05:46:31,382 INFO org.apache.hadoop.hbase.regionserver.SplitTransaction: Still
waiting on the master to process the split for 8bbd7388262dc8cb1ce2cf4f04a7281d
> 2011-11-15 05:46:31,483 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign: regionserver:7003-0x1337b0b92cd000a-0x1337b0b92cd000a
Attempting to transition node 8bbd7388262dc8cb1ce2cf4f04a7281d from RS_ZK_REGION_SPLIT to
RS_ZK_REG
> ION_SPLIT
> 2011-11-15 05:46:31,484 INFO org.apache.hadoop.hbase.regionserver.SplitRequest: Region
split, META updated, and report to master. Parent=TestTable,0862220095,1321335865649.8bbd7388262dc8cb1ce2cf4f04a7281d.,
new regions: TestTab
> le,0862220095,1321335989689.f00c683df3182d8ef33e315f77ca539c., TestTable,0892568091,1321335989689.a56ca1eff5b4401432fcba04b4e851f8..
Split took 1sec
> 2011-11-15 05:46:37,705 DEBUG org.apache.hadoop.hbase.regionserver.Store: Compacting
hdfs://sv4r11s38:7000/hbase/TestTable/a56ca1eff5b4401432fcba04b4e851f8/info/9ce16d8fa94e4938964c04775a6fa1a7.8bbd7388262dc8cb1ce2cf4f04a7281d-
> hdfs://sv4r11s38:7000/hbase/TestTable/8bbd7388262dc8cb1ce2cf4f04a7281d/info/9ce16d8fa94e4938964c04775a6fa1a7-top,
keycount=717559, bloomtype=NONE, size=711.1m
> 2011-11-15 05:46:37,705 DEBUG org.apache.hadoop.hbase.regionserver.Store: Compacting
hdfs://sv4r11s38:7000/hbase/TestTable/a56ca1eff5b4401432fcba04b4e851f8/info/9213f4d7ee9b4fda857a97603a001f9e.8bbd7388262dc8cb1ce2cf4f04a7281d-
> hdfs://sv4r11s38:7000/hbase/TestTable/8bbd7388262dc8cb1ce2cf4f04a7281d/info/9213f4d7ee9b4fda857a97603a001f9e-top,
keycount=416691, bloomtype=NONE, size=412.9m
> 2011-11-15 05:46:53,090 DEBUG org.apache.hadoop.hbase.regionserver.Store: Compacting
hdfs://sv4r11s38:7000/hbase/TestTable/f00c683df3182d8ef33e315f77ca539c/info/9ce16d8fa94e4938964c04775a6fa1a7.8bbd7388262dc8cb1ce2cf4f04a7281d-
> hdfs://sv4r11s38:7000/hbase/TestTable/8bbd7388262dc8cb1ce2cf4f04a7281d/info/9ce16d8fa94e4938964c04775a6fa1a7-bottom,
keycount=717559, bloomtype=NONE, size=711.1m
> 2011-11-15 05:46:53,090 DEBUG org.apache.hadoop.hbase.regionserver.Store: Compacting
hdfs://sv4r11s38:7000/hbase/TestTable/f00c683df3182d8ef33e315f77ca539c/info/9213f4d7ee9b4fda857a97603a001f9e.8bbd7388262dc8cb1ce2cf4f04a7281d-
> hdfs://sv4r11s38:7000/hbase/TestTable/8bbd7388262dc8cb1ce2cf4f04a7281d/info/9213f4d7ee9b4fda857a97603a001f9e-bottom,
keycount=416691, bloomtype=NONE, size=412.9m
> 2011-11-15 05:48:00,690 DEBUG org.apache.hadoop.hbase.regionserver.wal.HLog: Found 3
hlogs to remove out of total 12; oldest outstanding sequenceid is 5699 from region 8bbd7388262dc8cb1ce2cf4f04a7281d
> 2011-11-15 05:57:54,083 INFO org.apache.hadoop.hbase.regionserver.wal.HLog: Too many
hlogs: logs=33, maxlogs=32; forcing flush of 1 regions(s): 8bbd7388262dc8cb1ce2cf4f04a7281d
> 2011-11-15 05:57:54,083 WARN org.apache.hadoop.hbase.regionserver.LogRoller: Failed to
schedule flush of 8bbd7388262dc8cb1ce2cf4f04a7281dr=null, requester=null
> 2011-11-15 05:58:01,358 INFO org.apache.hadoop.hbase.regionserver.wal.HLog: Too many
hlogs: logs=34, maxlogs=32; forcing flush of 1 regions(s): 8bbd7388262dc8cb1ce2cf4f04a7281d
> 2011-11-15 05:58:01,359 WARN org.apache.hadoop.hbase.regionserver.LogRoller: Failed to
schedule flush of 8bbd7388262dc8cb1ce2cf4f04a7281dr=null, requester=null
> {code}

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