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From Maximilian Michels <...@apache.org>
Subject Re: native snappy library not available
Date Wed, 19 Oct 2016 16:33:01 GMT
The Hadoop config of your Hadoop installation which is loaded in
SequenceFileWriter.open() needs to be configured to have
"io.compression.codecs" set to include "SnappyCodec". This is probably
described in the Hadoop documentation.

-Max


On Wed, Oct 19, 2016 at 6:09 PM,  <robert.lancaster@hyatt.com> wrote:
> Hi Till,
>
>
>
> Thanks for the response.  I’m hoping not to have to change Flink’s lib
> folder.  The path I specified does exist on each node,  and –C is supposed
> to add the path to the classpath on all nodes in the cluster.  I might try
> to bundle the snappy jar within my job jar to see if that works.
>
>
>
> From: Till Rohrmann <trohrmann@apache.org>
> Reply-To: "user@flink.apache.org" <user@flink.apache.org>
> Date: Wednesday, October 19, 2016 at 2:46 PM
> To: "user@flink.apache.org" <user@flink.apache.org>
> Subject: Re: native snappy library not available
>
>
>
> Hi Robert,
>
>
>
> have you tried putting the snappy java jar in Flink's lib folder? When
> specifying the classpath manually you have to make sure that all distributed
> components are also started with this classpath.
>
>
>
> Cheers,
>
> Till
>
>
>
> On Wed, Oct 19, 2016 at 1:07 PM, <robert.lancaster@hyatt.com> wrote:
>
> I have flink running on a standalone cluster, but with a Hadoop cluster
> available to it.  I’m using a RollingSink and a SequenceFileWriter, and I’ve
> set compression to Snappy:
>
>
>
> .setWriter(new SequenceFileWriter<Text,
> Text>("org.apache.hadoop.io.compress.SnappyCodec",
> SequenceFile.CompressionType.BLOCK))
>
>
>
>
>
> However, when I try to run this job, I get an error indicating that the
> native snappy ibrary is not available:
>
>
>
> Caused by: java.lang.RuntimeException: native snappy library not available:
> this version of libhadoop was built without snappy support.
>
>         at
> org.apache.hadoop.io.compress.SnappyCodec.checkNativeCodeLoaded(SnappyCodec.java:65)
>
>
>
> I’ve tried adding the snappy java jar to the classpath.  I’ve also tried
> adding the native dir to the classpath.  Neither have helped.
>
> -C file://usr/hdp/current/hadoop-client/lib/snappy-java-1.0.4.1.jar
>
> -C file://usr/hdp/current/hadoop/lib/native/
>
>
>
> Any thoughts on how I can get this to work?
>
>
>
> Thanks!
>
>
>
>
>
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