[
https://issues.apache.org/jira/browse/HBASE-1809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12751341#action_12751341
]
Mathias Herberts commented on HBASE-1809:
-----------------------------------------
I hit this NPE again, this time in a call to 'get', as the log message contains
a row key, I will try to hunt the region to see if there was any particular
activity around that time.
{noformat}
2009-09-04 02:31:52,192 ERROR
org.apache.hadoop.hbase.regionserver.HRegionServer:
java.lang.NullPointerException
at
org.apache.hadoop.hbase.io.hfile.BoundedRangeFileInputStream.read(BoundedRangeFileInputStream.java:97)
at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:100)
at
org.apache.hadoop.hbase.io.hfile.HFile$Reader.decompress(HFile.java:982)
at
org.apache.hadoop.hbase.io.hfile.HFile$Reader.readBlock(HFile.java:936)
at
org.apache.hadoop.hbase.io.hfile.HFile$Reader$Scanner.loadBlock(HFile.java:1265)
at
org.apache.hadoop.hbase.io.hfile.HFile$Reader$Scanner.seekTo(HFile.java:1148)
at
org.apache.hadoop.hbase.regionserver.StoreFileGetScan.getStoreFile(StoreFileGetScan.java:80)
at
org.apache.hadoop.hbase.regionserver.StoreFileGetScan.get(StoreFileGetScan.java:65)
at org.apache.hadoop.hbase.regionserver.Store.get(Store.java:1442)
at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:2301)
at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:2290)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1768)
at sun.reflect.GeneratedMethodAccessor12.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.HBaseRPC$Server.call(HBaseRPC.java:650)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
2009-09-04 02:31:52,195 INFO org.apache.hadoop.ipc.HBaseServer: IPC Server
handler 4 on 60020, call get([...@3e507609,
row=domirama,0TE332647699C��^?���,1252024306264, maxVersions=1,
timeRange=[0,9223372036854775807), families={(family=info, columns=ALL}) from
10.154.99.180:57418: error: java.i
o.IOException: java.lang.NullPointerException
java.io.IOException: java.lang.NullPointerException
at
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:847)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:837)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1770)
at sun.reflect.GeneratedMethodAccessor12.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.HBaseRPC$Server.call(HBaseRPC.java:650)
at
org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915)
Caused by: java.lang.NullPointerException
at
org.apache.hadoop.hbase.io.hfile.BoundedRangeFileInputStream.read(BoundedRangeFileInputStream.java:97)
at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:100)
at
org.apache.hadoop.hbase.io.hfile.HFile$Reader.decompress(HFile.java:982)
at
org.apache.hadoop.hbase.io.hfile.HFile$Reader.readBlock(HFile.java:936)
at
org.apache.hadoop.hbase.io.hfile.HFile$Reader$Scanner.loadBlock(HFile.java:1265)
at
org.apache.hadoop.hbase.io.hfile.HFile$Reader$Scanner.seekTo(HFile.java:1148)
at
org.apache.hadoop.hbase.regionserver.StoreFileGetScan.getStoreFile(StoreFileGetScan.java:80)
at
org.apache.hadoop.hbase.regionserver.StoreFileGetScan.get(StoreFileGetScan.java:65)
at org.apache.hadoop.hbase.regionserver.Store.get(Store.java:1442)
at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:2301)
at org.apache.hadoop.hbase.regionserver.HRegion.get(HRegion.java:2290)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.get(HRegionServer.java:1768)
... 5 more
{noformat}
> NPE thrown in BoundedRangeFileInputStream
> -----------------------------------------
>
> Key: HBASE-1809
> URL: https://issues.apache.org/jira/browse/HBASE-1809
> Project: Hadoop HBase
> Issue Type: Bug
> Components: io
> Environment: All
> Reporter: Mathias Herberts
> Fix For: 0.20.1
>
> Attachments: HFile-returnDecompressor.patch
>
>
> NPE is thrown in BoundedRangeFileInputStream.read when attempting to
> synchronize on 'in' (line 97).
> This probably means the BRFIS was created with a null FSDIS.
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