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From "Sebastian Bauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1621) merge tool should work on online cluster, but disabled table
Date Fri, 11 Feb 2011 12:10:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12993465#comment-12993465
] 

Sebastian Bauer commented on HBASE-1621:
----------------------------------------

issu with new patch:

11/02/11 12:48:52 DEBUG regionserver.HRegion: Opening region: REGION => {NAME => 'Golden_ATU,6863-g_75FAEC36055608836CA66DCF3F587EF5,1297363213791.25a54a0a31f43b31c3273ea8124febc3.',
STARTKEY => '6863-g_75FAEC36055608836CA66DCF3F587EF5', ENDKEY => '6867-d_2010_8_8_23B88FA03D74F4A93374B12F60292B4F',
ENCODED => 25a54a0a31f43b31c3273ea8124febc3, OFFLINE => true, TABLE => {{NAME =>
'Golden_ATU', FAMILIES => [{NAME => 'c', BLOOMFILTER => 'ROW', REPLICATION_SCOPE
=> '0', COMPRESSION => 'LZO', VERSIONS => '1', TTL => '-1', BLOCKSIZE => '65536',
IN_MEMORY => 'false', BLOCKCACHE => 'true'}]}}
                11/02/11 12:48:52 DEBUG regionserver.HRegion: Instantiated Golden_ATU,6863-g_75FAEC36055608836CA66DCF3F587EF5,1297363213791.25a54a0a31f43b31c3273ea8124febc3.
                        11/02/11 12:48:52 INFO lzo.GPLNativeCodeLoader: Loaded native gpl
library
                        11/02/11 12:48:52 INFO lzo.LzoCodec: Successfully loaded & initialized
native-lzo library [hadoop-lzo rev /home/django/hadoop-lzo/src/get_build_revision.sh: line
4: git: command not found]
                        11/02/11 12:48:52 INFO compress.CodecPool: Got brand-new compressor
                        11/02/11 12:48:52 FATAL util.Merge: Merge failed
                        java.lang.IllegalArgumentException: Wrong FS: hdfs://db2a:50001/hbase/Golden_ATU/25a54a0a31f43b31c3273ea8124febc3/.regioninfo,
expected: file:///
                        at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:310)
                        at org.apache.hadoop.fs.RawLocalFileSystem.pathToFile(RawLocalFileSystem.java:47)
                        at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:357)
                        at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:245)
                        at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:648)
                        at org.apache.hadoop.hbase.regionserver.HRegion.checkRegioninfoOnFilesystem(HRegion.java:430)
                        at org.apache.hadoop.hbase.regionserver.HRegion.initialize(HRegion.java:355)
                        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:2713)
                        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:2699)
                        at org.apache.hadoop.hbase.regionserver.HRegion.openHRegion(HRegion.java:2668)
                        at org.apache.hadoop.hbase.util.OnlineMerge.merge(OnlineMerge.java:290)
                        at org.apache.hadoop.hbase.util.OnlineMerge.mergeRegions(OnlineMerge.java:230)
                        at org.apache.hadoop.hbase.util.OnlineMerge.run(OnlineMerge.java:118)
                        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
                        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
                        at org.apache.hadoop.hbase.util.OnlineMerge.main(OnlineMerge.java:393)


> merge tool should work on online cluster, but disabled table
> ------------------------------------------------------------
>
>                 Key: HBASE-1621
>                 URL: https://issues.apache.org/jira/browse/HBASE-1621
>             Project: HBase
>          Issue Type: Bug
>            Reporter: ryan rawson
>             Fix For: 0.92.0
>
>         Attachments: HBASE-1621-v2.patch, HBASE-1621.patch, hbase-onlinemerge.patch
>
>
> taking down the entire cluster to merge 2 regions is a pain, i dont see why the table
or regions specifically couldnt be taken offline, then merged then brought back up.
> this might need a new API to the regionservers so they can take direction from not just
the master.

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