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From "Michael Kjellman (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-4813) Problem using BulkOutputFormat while streaming several SSTables simultaneously from a given node.
Date Thu, 08 Nov 2012 23:28:13 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13493597#comment-13493597
] 

Michael Kjellman edited comment on CASSANDRA-4813 at 11/8/12 11:28 PM:
-----------------------------------------------------------------------

new problem now with this patch.


attempt_201211061048_0010_r_000002_0: Exception in thread "Streaming to /10.25.9.5:1" java.lang.RuntimeException:
java.io.IOException: Broken pipe
attempt_201211061048_0010_r_000002_0: 	at com.google.common.base.Throwables.propagate(Throwables.java:156)
attempt_201211061048_0010_r_000002_0: 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:32)
attempt_201211061048_0010_r_000002_0: 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
attempt_201211061048_0010_r_000002_0: 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
attempt_201211061048_0010_r_000002_0: 	at java.lang.Thread.run(Thread.java:722)
attempt_201211061048_0010_r_000002_0: Caused by: java.io.IOException: Broken pipe
attempt_201211061048_0010_r_000002_0: 	at sun.nio.ch.FileDispatcherImpl.write0(Native Method)
attempt_201211061048_0010_r_000002_0: 	at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47)
attempt_201211061048_0010_r_000002_0: 	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:89)
attempt_201211061048_0010_r_000002_0: 	at sun.nio.ch.IOUtil.write(IOUtil.java:60)
attempt_201211061048_0010_r_000002_0: 	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:450)
attempt_201211061048_0010_r_000002_0: 	at java.nio.channels.Channels.writeFullyImpl(Channels.java:78)
attempt_201211061048_0010_r_000002_0: 	at java.nio.channels.Channels.writeFully(Channels.java:98)
attempt_201211061048_0010_r_000002_0: 	at java.nio.channels.Channels.access$000(Channels.java:61)
attempt_201211061048_0010_r_000002_0: 	at java.nio.channels.Channels$1.write(Channels.java:174)
attempt_201211061048_0010_r_000002_0: 	at com.ning.compress.lzf.ChunkEncoder.encodeAndWriteChunk(ChunkEncoder.java:133)
attempt_201211061048_0010_r_000002_0: 	at com.ning.compress.lzf.LZFOutputStream.writeCompressedBlock(LZFOutputStream.java:203)
attempt_201211061048_0010_r_000002_0: 	at com.ning.compress.lzf.LZFOutputStream.write(LZFOutputStream.java:97)
attempt_201211061048_0010_r_000002_0: 	at org.apache.cassandra.streaming.FileStreamTask.write(FileStreamTask.java:218)
attempt_201211061048_0010_r_000002_0: 	at org.apache.cassandra.streaming.FileStreamTask.stream(FileStreamTask.java:164)
attempt_201211061048_0010_r_000002_0: 	at org.apache.cassandra.streaming.FileStreamTask.runMayThrow(FileStreamTask.java:91)
attempt_201211061048_0010_r_000002_0: 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
attempt_201211061048_0010_r_000002_0: 	... 3 more
                
      was (Author: mkjellman):
    same behavior on the first run unfortunately. all nodes marked as down at the same time
due to trying to rebind to the socket.
                  
> 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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