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https://issues.apache.org/jira/browse/CASSANDRA-4813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13494317#comment-13494317
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Michael Kjellman edited comment on CASSANDRA-4813 at 11/9/12 11:13 PM:
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yes, actually the first time I tested I did forget to ensure both the Hadoop
jar and Cassandra nodes had the newest patched version. I've tested a few times
now just to make sure i'm not missing anything. Seems to die as soon as it
tries to stream the first sstable to the nodes. Never progresses past 0% on the
streaming and then throws the exception.
applied patch to trunk when it was at commit
f09a89f4cd13af2087fcc92f09f6cf1ee4785feb. i rebuilt the entire cluster, and
ensured my maven dependencies were all set. Still reproduced the problem
unfortunately (i actually thought it had been resolved but i just reproduced
the java.io.IOException: Broken pipe again).
MD5 (build/apache-cassandra-1.2.0-beta2-SNAPSHOT.jar) =
92d8ffacb3963116dd153a2c8c83fbe9
was (Author: mkjellman):
yes, actually the first time i didn't and then i realized i hadn't rebuilt
the Cassandra nodes and only replaced the compiled jar in my hadoop job. I've
tested a few times now just to make sure i'm not missing anything. Seems to die
as soon as it tries to stream the first sstable to the nodes. Never progresses
past 0% on the streaming and then throws the exception.
> Problem using BulkOutputFormat while streaming several SSTables
> simultaneously from a given node.
> -------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-4813
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4813
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.1.0
> Environment: I am using SLES 10 SP3, Java 6, 4 Cassandra + Hadoop
> nodes, 3 Hadoop only nodes (datanodes/tasktrackers), 1 namenode/jobtracker.
> The machines used are Six-Core AMD Opteron(tm) Processor 8431, 24 cores and
> 33 GB of RAM. I get the issue on both cassandra 1.1.3, 1.1.5 and I am using
> Hadoop 0.20.2.
> Reporter: Ralph Romanos
> Assignee: Yuki Morishita
> Priority: Minor
> Labels: Bulkoutputformat, Hadoop, SSTables
> Fix For: 1.2.0 rc1
>
> Attachments: 4813.txt
>
>
> The issue occurs when streaming simultaneously SSTables from the same node to
> a cassandra cluster using SSTableloader. It seems to me that Cassandra cannot
> handle receiving simultaneously SSTables from the same node. However, when it
> receives simultaneously SSTables from two different nodes, everything works
> fine. As a consequence, when using BulkOutputFormat to generate SSTables and
> stream them to a cassandra cluster, I cannot use more than one reducer per
> node otherwise I get a java.io.EOFException in the tasktracker's logs and a
> java.io.IOException: Broken pipe in the Cassandra logs.
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