Hi Paul.
I would recommend building your own 1.1.0 distribution.
./make-distribution.sh --name hadoop-personal-build-2.4 --tgz -Pyarn
-Phadoop-2.4 -Dhadoop.version=2.4.0 -DskipTests
I downloaded the "Pre-build for Hadoop 2.4" binary, and it had this strange
behavior where
spark-submit --master yarn-cluster ...
will work, but
spark-submit --master yarn-client ...
will fail.
But on the personal build obtained from the command above, both will then work.
-Christian
On Sep 15, 2014, at 6:28 PM, Paul Wais <[email protected]> wrote:
> Dear List,
>
> I'm having trouble getting Spark 1.1 to use the Hadoop 2 API for
> reading SequenceFiles. In particular, I'm seeing:
>
> Exception in thread "main" org.apache.hadoop.ipc.RemoteException:
> Server IPC version 7 cannot communicate with client version 4
> at org.apache.hadoop.ipc.Client.call(Client.java:1070)
> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
> at com.sun.proxy.$Proxy7.getProtocolVersion(Unknown Source)
> ...
>
> When invoking JavaSparkContext#newAPIHadoopFile(). (With args
> validSequenceFileURI, SequenceFileInputFormat.class, Text.class,
> BytesWritable.class, new Job().getConfiguration() -- Pretty close to
> the unit test here:
> https://github.com/apache/spark/blob/f0f1ba09b195f23f0c89af6fa040c9e01dfa8951/core/src/test/java/org/apache/spark/JavaAPISuite.java#L916
> )
>
>
> This error indicates to me that Spark is using an old hadoop client to
> do reads. Oddly I'm able to do /writes/ ok, i.e. I'm able to write
> via JavaPairRdd#saveAsNewAPIHadoopFile() to my hdfs cluster.
>
>
> Do I need to explicitly build spark for modern hadoop?? I previously
> had an hdfs cluster running hadoop 2.3.0 and I was getting a similar
> error (server is using version 9, client is using version 4).
>
>
> I'm using Spark 1.1 cdh4 as well as hadoop cdh4 from the links posted
> on spark's site:
> * http://d3kbcqa49mib13.cloudfront.net/spark-1.1.0-bin-cdh4.tgz
> * http://d3kbcqa49mib13.cloudfront.net/hadoop-2.0.0-cdh4.2.0.tar.gz
>
>
> What distro of hadoop is used at Data Bricks? Are there distros of
> Spark 1.1 and hadoop that should work together out-of-the-box?
> (Previously I had Spark 1.0.0 and Hadoop 2.3 working fine..)
>
> Thanks for any help anybody can give me here!
> -Paul
>
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