Hi Amareshwari, Thanks for the reply. We recently upgraded hadoop cluster to hadoop-18.2. Can you please suggest a simple way of avoiding this issue. I mean, do we need to do the full upgrade to hadoop-0.18.3 or is there a simple way of taking the patch and adding it to the existing code repository and rebuild?
Thanks Pallavi -----Original Message----- From: Amareshwari Sriramadasu [mailto:[EMAIL PROTECTED] Sent: Friday, November 28, 2008 10:56 AM To: core-user@hadoop.apache.org Subject: Re: Error with Sequence File in hadoop-18 It got fixed in 0.18.3 (HADOOP-4499). -Amareshwari Palleti, Pallavi wrote: > 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 > > >
