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From Apurv Verma <dapu...@gmail.com>
Subject Re: java.lang.NoClassDefFoundError: org/xerial/snappy/SnappyInputStream
Date Thu, 23 Feb 2012 23:06:18 GMT
What is buggy in Dain's snappy, can you let me know?

--
thanks and regards,

Apurv Verma
B. Tech.(CSE)
IIT- Ropar






On Thu, Feb 23, 2012 at 5:06 PM, Thomas Jungblut <
thomas.jungblut@googlemail.com> wrote:

> It seems that Dain's snappy is buggy. I tried the Hadoop codec as well as
> directly using streams. However, I just changed it to the xerial version in
> POM and it now works correctly.
>
> I will contact dain and try to sort out things.  Please update the trunk
> and rebuild.
> Sorry for the inconvenience.
>
> 2012/2/23 Thomas Jungblut <thomas.jungblut@googlemail.com>
>
> > Yep, maybe this is the issue. In the Maven POM is the dain version, in
> > impor statements the xerial version. Sorry for the inconsistency. I fix
> it.
> >
> >
> > 2012/2/23 Thomas Jungblut <thomas.jungblut@googlemail.com>
> >
> >> Wait a minute, I guess this is the wrong library.
> >>
> >> My intention was to use the  https://github.com/dain/snappy lib, since
> >> it is faster than the JNI port.
> >> I investigate it after launch.
> >>
> >>
> >> 2012/2/23 Edward J. Yoon <edwardyoon@apache.org>
> >>
> >>> Hmm, the snappy-0.2.jar is already in lib folder.
> >>>
> >>> edward@slave:~/workspace/hama-trunk$ ls lib/
> >>> ant-1.7.1.jar           commons-configuration-1.6.jar
> >>> hadoop-test-1.0.0.jar         jetty-util-6.1.14.jar
> >>> netty-3.2.6.Final.jar    zookeeper-3.3.3.jar
> >>> ant-launcher-1.7.1.jar  commons-lang-2.6.jar
> >>> jackson-core-asl-1.9.2.jar    jsp-2.1-6.1.14.jar
> >>> servlet-api-6.0.32.jar
> >>> avro-1.6.0.jar          commons-logging-1.1.1.jar
> >>> jackson-mapper-asl-1.9.2.jar  jsp-api-2.1-6.1.14.jar
> >>> slf4j-api-1.5.8.jar
> >>> avro-ipc-1.6.0.jar      guava-10.0.1.jar
> >>> jetty-6.1.14.jar              junit-4.8.1.jar
> >>> slf4j-log4j12-1.5.8.jar
> >>> commons-cli-1.2.jar     hadoop-core-1.0.0.jar
> >>> jetty-annotations-6.1.14.jar  log4j-1.2.16.jar        snappy-0.2.jar
> >>>
> >>>
> >>> On Thu, Feb 23, 2012 at 4:51 PM, Thomas Jungblut
> >>> <thomas.jungblut@googlemail.com> wrote:
> >>> > You have to update your jars, Snappy is a new dependency for
> >>> compression.
> >>> >
> >>> > 2012/2/23 Edward J. Yoon <edwardyoon@apache.org>
> >>> >
> >>> >> I received below error message with pi example.
> >>> >>
> >>> >> 12/02/23 15:26:16 DEBUG sync.ZooKeeperSyncClientImpl: leaveBarrier()
> >>> >> at superstep:-1 znode size: (0) znodes:[]
> >>> >> 12/02/23 15:26:16 WARN bsp.GroomServer: Error running child
> >>> >> java.lang.NoClassDefFoundError: org/xerial/snappy/SnappyInputStream
> >>> >>        at java.lang.Class.forName0(Native Method)
> >>> >>        at java.lang.Class.forName(Class.java:247)
> >>> >>        at
> >>> >>
> >>>
> org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:819)
> >>> >>        at
> >>> >>
> >>>
> org.apache.hama.bsp.message.compress.BSPMessageCompressorFactory.getCompressor(BSPMessageCompressorFactory.java:37)
> >>> >>        at
> >>> >>
> >>>
> org.apache.hama.bsp.message.CompressableMessageManager.initCompression(CompressableMessageManager.java:36)
> >>> >>        at
> >>> >>
> >>>
> org.apache.hama.bsp.message.AvroMessageManagerImpl.init(AvroMessageManagerImpl.java:60)
> >>> >>        at
> org.apache.hama.bsp.BSPPeerImpl.<init>(BSPPeerImpl.java:145)
> >>> >>        at
> >>> >>
> >>> org.apache.hama.bsp.GroomServer$BSPPeerChild.main(GroomServer.java:969)
> >>> >> Caused by: java.lang.ClassNotFoundException:
> >>> >> org.xerial.snappy.SnappyInputStream
> >>> >>        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
> >>> >>        at java.security.AccessController.doPrivileged(Native Method)
> >>> >>        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
> >>> >>        at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
> >>> >>        at
> >>> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> >>> >>        at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
> >>> >>
> >>> >>
> >>> >> --
> >>> >> Best Regards, Edward J. Yoon
> >>> >> @eddieyoon
> >>> >>
> >>> >
> >>> >
> >>> >
> >>> > --
> >>> > Thomas Jungblut
> >>> > Berlin <thomas.jungblut@gmail.com>
> >>>
> >>>
> >>>
> >>> --
> >>> Best Regards, Edward J. Yoon
> >>> @eddieyoon
> >>>
> >>
> >>
> >>
> >> --
> >> Thomas Jungblut
> >> Berlin <thomas.jungblut@gmail.com>
> >>
> >
> >
> >
> > --
> > Thomas Jungblut
> > Berlin <thomas.jungblut@gmail.com>
> >
>
>
>
> --
> Thomas Jungblut
> Berlin <thomas.jungblut@gmail.com>
>

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