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Posted to common-user@hadoop.apache.org by Sriram Rao <sr...@gmail.com> on 2008/02/26 02:44:26 UTC

exception in hdfs_write (libhdfs)

Hi,

I am trying to run some of the binaries in libhdfs, in particular
hdfs_write.  My setup:
 - I am using hadoop-0.15.3
 - I started namenode/datanode on the localhost
 - I compiled libhdfs for an x86_64 setting

I invoke hdfs_write as:
hdfs_write foo.1 128000000 65536

When I run the hdfs_write test program, the program sees the following
exception:
java.io.IOException: Mismatch in writeChunk() args
   at org.apache.hadoop.dfs.DFSClient$DFSOutputStream.writeChunk(DFSClient.java:1588)
   at org.apache.hadoop.fs.FSOutputSummer.writeChecksumChunk(FSOutputSummer.java:140)
   at org.apache.hadoop.fs.FSOutputSummer.write1(FSOutputSummer.java:100)
   at org.apache.hadoop.fs.FSOutputSummer.write(FSOutputSummer.java:86)
   at org.apache.hadoop.fs.FSDataOutputStream$PositionCache.write(FSDataOutputStream.java:39)
   at java.io.DataOutputStream.write(libgcj.so.8rh)
   at java.io.FilterOutputStream.write(libgcj.so.8rh)
Call to org.apache.hadoop.fs.FSDataOutputStream::write failed!

When do "bin/hadoop dfs -ls", it shows the file foo.1 as being created.

What gives?

Sriram