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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6048) Table Scan is failing if offheap cache enabled
Date Fri, 18 May 2012 18:35:11 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ramkrishna.s.vasudevan updated HBASE-6048:
------------------------------------------

    Priority: Major  (was: Critical)

My intention behind marking critical was though we have claimed it to be an experimental feature
on enabling it if scan fails then i thought its good to have a closer look.
I will lower the priority of it.  May be i will spend some time in finding out the root cause
of it and based on that we can come up with some information to say that this feature is experimental
and so and so things could be the possible problems that one could run into.
                
> Table Scan is failing if offheap cache enabled
> ----------------------------------------------
>
>                 Key: HBASE-6048
>                 URL: https://issues.apache.org/jira/browse/HBASE-6048
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.0
>            Reporter: Gopinathan A
>            Assignee: ramkrishna.s.vasudevan
>
> Table Scan is failing if offheap cache enabled.
> {noformat}
> 2012-05-18 20:03:38,446 DEBUG org.apache.hadoop.hbase.io.hfile.HFileWriterV2: Initialized
with CacheConfig:enabled [cacheDataOnRead=true] [cacheDataOnWrite=false] [cacheIndexesOnWrite=false]
[cacheBloomsOnWrite=false] [cacheEvictOnClose=false] [cacheCompressed=false]
> 2012-05-18 20:03:38,446 INFO org.apache.hadoop.hbase.regionserver.StoreFile: Delete Family
Bloom filter type for hdfs://10.18.40.217:9000/hbase/ufdr/1d4656fd417a07c9171a38b8f4d08510/.tmp/03742024b28f443bb63cfc338d4ca422:
CompoundBloomFilterWriter
> 2012-05-18 20:04:25,576 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: Block cache
LRU eviction started; Attempting to free 120.57 MB of total=1020.57 MB
> 2012-05-18 20:04:25,655 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: Block cache
LRU eviction completed; freed=120.82 MB, total=907.89 MB, single=1012.11 MB, multi=6.12 MB,
memory=0 KB
> 2012-05-18 20:04:25,733 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: Failed
openScanner
> java.lang.IllegalStateException: Schema metrics requested before table/CF name initialization:
{"tableName":"null","cfName":"null"}
> 	at org.apache.hadoop.hbase.regionserver.metrics.SchemaConfigured.getSchemaMetrics(SchemaConfigured.java:182)
> 	at org.apache.hadoop.hbase.io.hfile.LruBlockCache.updateSizeMetrics(LruBlockCache.java:310)
> 	at org.apache.hadoop.hbase.io.hfile.LruBlockCache.cacheBlock(LruBlockCache.java:274)
> 	at org.apache.hadoop.hbase.io.hfile.LruBlockCache.cacheBlock(LruBlockCache.java:293)
> 	at org.apache.hadoop.hbase.io.hfile.DoubleBlockCache.getBlock(DoubleBlockCache.java:102)
> 	at org.apache.hadoop.hbase.io.hfile.HFileReaderV2.readBlock(HFileReaderV2.java:296)
> 	at org.apache.hadoop.hbase.io.hfile.HFileBlockIndex$BlockIndexReader.seekToDataBlock(HFileBlockIndex.java:213)
> 	at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekTo(HFileReaderV2.java:455)
> 	at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekTo(HFileReaderV2.java:475)
> 	at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekAtOrAfter(StoreFileScanner.java:226)
> 	at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seek(StoreFileScanner.java:145)
> 	at org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:130)
> 	at org.apache.hadoop.hbase.regionserver.Store.getScanner(Store.java:2001)
> 	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:3274)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:1604)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1596)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1572)
> 	at org.apache.hadoop.hbase.regionserver.HRegionServer.openScanner(HRegionServer.java:2310)
> 	at sun.reflect.GeneratedMethodAccessor45.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
> 	at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1376)
> 2012-05-18 20:04:25,828 ERROR org.apache.hadoop.hbase.regionserver.HRegionServer: Failed
openScanner
> {noformat}

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