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From "Palleti, Pallavi" <pallavi.pall...@corp.aol.com>
Subject Error with Sequence File in hadoop-18
Date Thu, 27 Nov 2008 18:08:30 GMT
Hi,

 I am getting "Check sum ok was sent" errors when I am using hadoop. Can
someone please let me know why this error is coming and how to avoid it.

It was running perfectly fine when I used hadoop-17. And, this error is
coming when I upgraded the system to hadoop-18.2.

 

The full stack trace is:

08/11/27 13:02:58 INFO fs.FSInputChecker: java.io.IOException: Checksum
ok was sent and should not be sent again

        at
org.apache.hadoop.dfs.DFSClient$BlockReader.read(DFSClient.java:863)

        at
org.apache.hadoop.dfs.DFSClient$DFSInputStream.readBuffer(DFSClient.java
:1392)

        at
org.apache.hadoop.dfs.DFSClient$DFSInputStream.read(DFSClient.java:1428)

        at
org.apache.hadoop.dfs.DFSClient$DFSInputStream.read(DFSClient.java:1377)

        at java.io.DataInputStream.readByte(DataInputStream.java:248)

        at
org.apache.hadoop.io.WritableUtils.readVLong(WritableUtils.java:324)

        at
org.apache.hadoop.io.WritableUtils.readVInt(WritableUtils.java:345)

        at
org.apache.hadoop.io.SequenceFile$Reader.readBuffer(SequenceFile.java:16
48)

        at
org.apache.hadoop.io.SequenceFile$Reader.readBlock(SequenceFile.java:168
8)

        at
org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1850)

        at
org.apache.hadoop.io.SequenceFile$Reader.next(SequenceFile.java:1879)

        at
org.apache.hadoop.io.MapFile$Reader.readIndex(MapFile.java:318)

        at
org.apache.hadoop.io.MapFile$Reader.seekInternal(MapFile.java:434)

        at
org.apache.hadoop.io.MapFile$Reader.seekInternal(MapFile.java:416)

        at org.apache.hadoop.io.MapFile$Reader.seek(MapFile.java:403)

        at org.apache.hadoop.io.MapFile$Reader.get(MapFile.java:522)

 

Thanks

Pallavi


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