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HBase, mail # user - Premature EOF: no length prefix available


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Re: Premature EOF: no length prefix available
Jean-Marc Spaggiari 2013-05-02, 20:23
Hi Andrew,

No, this AWS instance is configured with instance stores too.

What do you mean by "ephemeral"?

JM

2013/5/2 Andrew Purtell <[EMAIL PROTECTED]>

> Oh, I have faced issues with Hadoop on AWS personally. :-) But not this
> one. I use instance-store aka "ephemeral" volumes for DataNode block
> storage. Are you by chance using EBS?
>
>
> On Thu, May 2, 2013 at 1:10 PM, Jean-Marc Spaggiari <
> [EMAIL PROTECTED]
> > wrote:
>
> > But that's wierld. This instance is running on AWS. If there issues with
> > Hadoop and AWS I think some other people will have faced it before me.
> >
> > Ok. I will move the discussion on the Hadoop mailing list since it seems
> to
> > be more related to hadoop vs OS.
> >
> > Thank,
> >
> > JM
> >
> > 2013/5/2 Andrew Purtell <[EMAIL PROTECTED]>
> >
> > > > 2013-05-02 14:02:41,063 INFO org.apache.hadoop.hdfs.DFSClient:
> > Exception
> > > in
> > > createBlockOutputStream java.io.EOFException: Premature EOF: no length
> > > prefix available
> > >
> > > The DataNode aborted the block transfer.
> > >
> > > > 2013-05-02 14:02:41,063 ERROR org.apache.hadoop.hdfs.server.
> > > datanode.DataNode:
> > > ip-10-238-38-193.eu-west-1.compute.internal:50010:DataXceiver
> > > error processing WRITE_BLOCK operation  src: /10.238.38.193:39831dest:
> > /
> > > 10.238.38.193:50010 java.io.FileNotFoundException:
> > /mnt/dfs/dn/current/BP-
> > > 1179773663-10.238.38.193-1363960970263/current/rbw/blk_
> > > 7082931589039745816_1955950.meta (Invalid argument)
> > > >        at java.io.RandomAccessFile.open(Native Method)
> > > >        at java.io.RandomAccessFile.<init>(RandomAccessFile.java:216)
> > >
> > > This looks like the native (OS level) side of RAF got EINVAL back from
> > > create() or open(). Go from there.
> > >
> > >
> > >
> > > On Thu, May 2, 2013 at 12:27 PM, Jean-Marc Spaggiari <
> > > [EMAIL PROTECTED]> wrote:
> > >
> > > > Hi,
> > > >
> > > > Any idea what can be the cause of a "Premature EOF: no length prefix
> > > > available" error?
> > > >
> > > > 2013-05-02 14:02:41,063 INFO org.apache.hadoop.hdfs.DFSClient:
> > Exception
> > > in
> > > > createBlockOutputStream
> > > > java.io.EOFException: Premature EOF: no length prefix available
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.hadoop.hdfs.protocol.HdfsProtoUtil.vintPrefixed(HdfsProtoUtil.java:171)
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1105)
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1039)
> > > >         at
> > > >
> > > >
> > >
> >
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:487)
> > > > 2013-05-02 14:02:41,064 INFO org.apache.hadoop.hdfs.DFSClient:
> > Abandoning
> > > >
> > BP-1179773663-10.238.38.193-1363960970263:blk_7082931589039745816_1955950
> > > > 2013-05-02 14:02:41,068 INFO org.apache.hadoop.hdfs.DFSClient:
> > Excluding
> > > > datanode 10.238.38.193:50010
> > > >
> > > >
> > > >
> > > > I'm getting that on a server start. Logs are splitted correctly,
> > > > coprocessors deployed corretly, and then I'm getting this exception.
> > It's
> > > > excluding the datanode, and because of that almost everything
> remaining
> > > is
> > > > failing.
> > > >
> > > > There is only one server in this "cluster"... But even so, it should
> be
> > > > working. There is one master, one RS, one NN and one DN. On a AWS
> host.
> > > >
> > > > At the same time on the hadoop datanode side I'm getting that:
> > > >
> > > > 2013-05-02 14:02:41,063 INFO
> > > > org.apache.hadoop.hdfs.server.datanode.DataNode: opWriteBlock
> > > >
> > BP-1179773663-10.238.38.193-1363960970263:blk_7082931589039745816_1955950
> > > > received exception java.io.FileNotFoundException:
> > > >
> > > >
> > >
> >
> /mnt/dfs/dn/current/BP-1179773663-10.238.38.193-1363960970263/current/rbw/blk_7082931589039745816_1955950.meta