I believe it was for debug purpose and was removed after 0.18.2 released.

On Mon, Nov 17, 2008 at 8:57 PM, Alexander Aristov <
[EMAIL PROTECTED]> wrote:

> Hi all
> I upgraded hadoop to the 0.18.2 version and tried to run a test job,
> distcopy from S3 to HDFS
>
>
> I got a lot of info-level errors although the job successfully finished.
>
> Any ideas? Can I simply suppress INFOs in log4j and forget about the error?
>
>
> 08/11/17 07:43:09 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.readInt(DataInputStream.java:372)
>        at
>
> org.apache.hadoop.io.SequenceFile$Reader.readRecordLength(SequenceFile.java:1898)
>        at
> org.apache.hadoop.io.SequenceFile$Reader.nextRaw(SequenceFile.java:1961)
>        at
>
> org.apache.hadoop.io.SequenceFile$Sorter$SortPass.run(SequenceFile.java:2399)
>        at
> org.apache.hadoop.io.SequenceFile$Sorter.sortPass(SequenceFile.java:2335)
>        at
> org.apache.hadoop.io.SequenceFile$Sorter.sort(SequenceFile.java:2285)
>        at
> org.apache.hadoop.io.SequenceFile$Sorter.sort(SequenceFile.java:2326)
>        at org.apache.hadoop.tools.DistCp.checkDuplication(DistCp.java:1032)
>        at org.apache.hadoop.tools.DistCp.setup(DistCp.java:1013)
>        at org.apache.hadoop.tools.DistCp.copy(DistCp.java:618)
>        at org.apache.hadoop.tools.DistCp.run(DistCp.java:768)
>        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
>        at org.apache.hadoop.tools.DistCp.main(DistCp.java:788)
>
>
>
>
>
> --
> Best Regards
> Alexander Aristov
>

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