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From Andrew Purtell <apurt...@apache.org>
Subject Re: OOME hell
Date Wed, 03 Dec 2008 03:11:55 GMT
OOME during compaction:

2008-12-02 21:57:05,930 FATAL org.apache.hadoop.hbase.regionserver.HRegionServer
: Set stop flag in regionserver/0:0:0:0:0:0:0:0:60020.compactor
java.lang.OutOfMemoryError: Java heap space
        at org.apache.hadoop.hbase.io.ImmutableBytesWritable.readFields(Immutabl
eBytesWritable.java:110)
        at org.apache.hadoop.io.SequenceFile$Reader.getCurrentValue(SequenceFile
.java:1754)
        at org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1882)
        at org.apache.hadoop.io.MapFile$Reader.next(MapFile.java:516)
        at org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:1003)
        at org.apache.hadoop.hbase.regionserver.HStore.compact(HStore.java:893)


results in dead region because, upon reassignment, any scanner open gets this: 

Caused by: java.io.FileNotFoundException: File does not exist: hdfs://sjdc-atr-dc-1.atr.trendmicro.com:50000/data/hbase/content/1828513599/info/mapfiles/3497759206614039025/data
        at org.apache.hadoop.dfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:394)
        at org.apache.hadoop.fs.FileSystem.getLength(FileSystem.java:695)
        at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1420)
        at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1415)
        at org.apache.hadoop.io.MapFile$Reader.createDataFileReader(MapFile.java:301)
        at org.apache.hadoop.hbase.regionserver.HStoreFile$HbaseMapFile$HbaseReader.createDataFileReader(HStoreFile.java:650)
        at org.apache.hadoop.io.MapFile$Reader.open(MapFile.java:283)
        at org.apache.hadoop.hbase.regionserver.HStoreFile$HbaseMapFile$HbaseReader.<init>(HStoreFile.java:632)

Manual intervention required here. Will try to restart and see what happens.




      

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