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From Stack <st...@duboce.net>
Subject Re: How to install Snappy?
Date Mon, 03 Dec 2012 18:20:14 GMT
Any chance of an update to
http://hbase.apache.org/book.html#snappy.compression ?  If someone writes
it up, I'll stitch it in. Thanks,
St.Ack


On Mon, Dec 3, 2012 at 6:29 AM, ac@hsk.hk <ac@hsk.hk> wrote:

> Hi,
>
> Something more about my workaround last time:
>
> I used the following steps to test my workaround:
>
> 1) cd $HBASE_HOME
> ./bin/hbase org.apache.hadoop.hbase.util.CompressionTest
> file:///tmp/testfile lzo
>
>
> 2) hbase shell
> create 't1', {NAME => 'cf1', COMPRESSION => 'LZO'}
>
>
> You could modify above for your test cases.
>
> Good luck
> Thanks
> AC
>
>
> On 3 Dec 2012, at 10:22 PM, ac@hsk.hk wrote:
>
> > Hi JM,
> >
> > I had experienced similar error when I was installing LZO compression to
> RegionServers:
> >
> > Below is from my record about installing LZO:
> > Issue:
> > java.lang.UnsatisfiedLinkError: no gplcompression in java.library.path
> > ...
> > 12/11/23 19:03:14 ERROR lzo.LzoCodec: Cannot load native-lzo without
> native-hadoop
> > Exception in thread "main" java.lang.RuntimeException: native-lzo
> library not available
> > Solution:
> > (compiled lzo from source), then do these EXTRA steps:
> > 1)  cp
> {working_folder_of_lzo}/hadoop-lzo-master/build/native/Linux-amd64-64/lib/*
> /usr/local/lib/
> > 2) echo export HBASE_LIBRARY_PATH=/usr/local/lib/ >>
> $HBASE_HOME/conf/hbase-env.sh
> > 3) mkdir -p $HBASE_HOME/build
> > 4) cp -r {working_folder_of_lzo}/hadoop-lzo-master/build/native
> $HBASE_HOME/build/native
> >
> >
> >
> > When looking at your email below,  I saw your log also has "The error
> I'm getting is java.lang.UnsatisfiedLinkError: no hadoopsnappy in
> java.library.path."
> > I think you could try these steps:
> > 1)  cp {working_folder_your_snappy}/build/native/Linux-amd64-64/lib/*
> /usr/local/lib/
> > 2) echo export HBASE_LIBRARY_PATH=/usr/local/lib/ >>
> $HBASE_HOME/conf/hbase-env.sh
> > 3) mkdir -p $HBASE_HOME/build
> > 4) cp -r {working_folder_your_snappy}/build/native
> $HBASE_HOME/build/native
> >
> >
> > Good luck.
> > Thanks
> > AC
> >
> >
> >
> > On 3 Dec 2012, at 9:47 PM, Jean-Marc Spaggiari wrote:
> >
> >> Ok....
> >>
> >> This: http://code.google.com/p/hadoop-snappy/issues/detail?id=2 helped
> >> me and my test program is now working. I'm able to load both
> >> libraries. Fine.
> >>
> >> But the CompressionTest is still not working.
> >>
> >> What is very strange is that:
> >> 12/12/03 08:44:24 WARN snappy.LoadSnappy: Snappy native library is
> available
> >> 12/12/03 08:44:24 WARN snappy.LoadSnappy: Snappy native library not
> loaded
> >>
> >> It's available, but not loaded.
> >>
> >> But from the code:
> >>  static {
> >>    try {
> >>      System.loadLibrary("snappy");
> >>      System.loadLibrary("hadoopsnappy");
> >>      LOG.warn("Snappy native library is available");
> >>      AVAILABLE = true;
> >>    } catch (UnsatisfiedLinkError ex) {
> >>      //NOP
> >>    }
> >>    LOADED = AVAILABLE;
> >>    if (LOADED) {
> >>      LOG.info("Snappy native library loaded");
> >>    } else {
> >>      LOG.warn("Snappy native library not loaded");
> >>    }
> >>  }
> >> If "Snappy native library is available" is displayed, that mean
> >> AVAILABLE = true... And if AVAILABLE = true, then LOADED is set to
> >> true and Snappy native library loaded must be displayed... But it's
> >> not... How is this possible?
> >>
> >> I have not expected Snappy installation to be such a challenge...
> >>
> >> I will continue to dig and summarize the steps when I will be done (If
> >> I'm able to finish...)
> >>
> >> JM
> >>
> >> 2012/12/3, Jean-Marc Spaggiari <jean-marc@spaggiari.org>:
> >>> Thanks all for your replies.
> >>>
> >>> So, to reply to all in one.
> >>>
> >>> I'm not using CD3. I'm using Hadoop  1.0.3 and HBase 0.94.2 directly
> >>> from the JARs.
> >>>
> >>> Here are all the places where I have put the lib:
> >>> /home/hadoop/hadoop-1.0.3/lib/native/Linux-amd64-64/libsnappy.so
> >>> /home/hadoop/hadoop-1.0.3/lib/native/Linux-amd64-64/libsnappy.so.1
> >>> /home/hadoop/hadoop-1.0.3/lib/native/Linux-amd64-64/libsnappy.so.1.1.3
> >>> /home/hadoop/hadoop-1.0.3/lib/native/Linux-i386-32/libsnappy.so
> >>> /home/hadoop/hadoop-1.0.3/lib/native/Linux-i386-32/libsnappy.so.1
> >>> /home/hadoop/hadoop-1.0.3/lib/native/Linux-i386-32/libsnappy.so.1.1.3
> >>> /home/hbase/hbase-0.94.2/lib/native/libsnappy.so
> >>> /home/hbase/hbase-0.94.2/lib/native/libsnappy.so.1
> >>> /home/hbase/hbase-0.94.2/lib/native/libsnappy.so.1.1.3
> >>> /home/hbase/hbase-0.94.2/lib/native/Linux-amd64-64/libsnappy.so
> >>> /home/hbase/hbase-0.94.2/lib/native/Linux-amd64-64/libsnappy.so.1
> >>> /home/hbase/hbase-0.94.2/lib/native/Linux-amd64-64/libsnappy.so.1.1.3
> >>> /home/hbase/hbase-0.94.2/lib/native/Linux-i386-32/libsnappy.so
> >>> /home/hbase/hbase-0.94.2/lib/native/Linux-i386-32/libsnappy.so.1
> >>> /home/hbase/hbase-0.94.2/lib/native/Linux-i386-32/libsnappy.so.1.1.3
> >>> /lib/x86_64-linux-gnu/libsnappy.so
> >>> /usr/lib/libsnappy.so
> >>> /usr/lib/libsnappy.so.1
> >>> /usr/lib/libsnappy.so.1.1.3
> >>> /usr/local/lib/libsnappy.so
> >>> /usr/local/lib/libsnappy.so.1
> >>> /usr/local/lib/libsnappy.so.1.1.3
> >>>
> >>> I tried to add this on my hbase-env.xml:
> >>> export
> >>> HBASE_LIBRARY_PATH=/home/hbase/hbase-0.94.2/lib/native/Linux-amd64-64
> >>>
> >>> Before I was trying with doing export on the command line directly
> >>> since it seems the hbase script is taking that into consideration too.
> >>>
> >>> I have not yet put the hbase.regionserver.codecs line since I still
> >>> need to use my cluster until I get snappy working. On the hbase/lib
> >>> directory I have snappy-java-1.0.3.2.jar.
> >>>
> >>>
> >>> Should snappy be installed within hbase? Or should it be in hadoop?
> >>> I'm not sure anymore.
> >>>
> >>> But it's still not working. So I tried the small code below:
> >>>
> >>> import java.util.StringTokenizer;
> >>>
> >>> public class Test
> >>> {
> >>>  static {
> >>>    try {
> >>>      System.loadLibrary("snappy");
> >>>      System.loadLibrary("hadoopsnappy");
> >>>      System.out.println ("Snappy native library is available");
> >>>    } catch (UnsatisfiedLinkError ex) {
> >>>        ex.printStackTrace();
> >>>    }
> >>>  }
> >>>
> >>>        public static void main (String [] args)
> >>>        {
> >>>                System.out.println ("Coucou");
> >>> String property = System.getProperty("java.library.path");
> >>> StringTokenizer parser = new StringTokenizer(property, ";");
> >>> while (parser.hasMoreTokens()) {
> >>>    System.err.println(parser.nextToken());
> >>>    }
> >>>        }
> >>> }
> >>>
> >>>
> >>> This code is from org.apache.hadoop.io.compress.snappy.LoadSnappy.
> >>> The error I'm getting is java.lang.UnsatisfiedLinkError: no
> >>> hadoopsnappy in java.library.path.
> >>>
> >>> So the issue is not the snappy lib. It' there and working fine. The
> >>> issue is the hadoopsnappy lib which I don't have...
> >>>
> >>> I found it there: http://code.google.com/p/hadoop-snappy/
> >>>
> >>> So I have extracted it with svn checkout
> >>> http://hadoop-snappy.googlecode.com/svn/trunk/
> >>> hadoop-snappy-read-only, tried to built it with mvn package but it's
> >>> failing with something saying "cannot find -ljvm"
> >>>
> >>> So seems my challenge will be to build hadoop-snappy and not to
> >>> install snappy which is already there and working...
> >>>
> >>> JM
> >>>
> >>> 2012/12/3, surfer <surfer@crs4.it>:
> >>>> hope it helps. this is what I do on apache hadoop 1.0.x and hbase
> 0.92.y:
> >>>> in hbase-site.xml add:
> >>>>
> >>>> <property>
> >>>> <name>hbase.regionserver.codecs</name>
> >>>> <value>snappy</value>
> >>>> </property>
> >>>>
> >>>> copy that file into the hadoop conf directory.
> >>>>
> >>>> in hbase-env.sh:
> >>>> export HBASE_LIBRARY_PATH=/pathtoyourhadoop/lib/native/Linux-amd64-64
> >>>>
> >>>> ( In hbase-env.sh I set also HBASE_HOME, HBASE_CONF_DIR, HADOOP_HOME,
> >>>> HADOOP_CONF_DIR but I don't know if they contribute to make snappy
> >>>> working...)
> >>>>
> >>>> in /pathtoyourhadoop/lib/native/Linux-amd64-64 I have:
> >>>> libsnappy.a
> >>>> libsnappy.so
> >>>> libsnappy.so.1
> >>>> libsnappy.so.1.1.2
> >>>>
> >>>> good luck
> >>>> giovanni
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> On 12/02/2012 02:25 PM, Jean-Marc Spaggiari wrote:
> >>>>> So. I spent few hours on that yesterday with no luck.
> >>>>>
> >>>>> Here is what I did:
> >>>>> - Install the google tar, untared, configured, maked and installed
> it.
> >>>>> - Copied the .so files all over my fs in the os lib dir,
> >>>>> HBase/lib/native and subdirs, Hadoop/lib/native and subdirs.
> >>>>> - Installed all debian packages with snappy in the name:
> >>>>> python-snappy, libsnappy-dev, libsnappy1, libsnappy-java
> >>>>>
> >>>>> But still exactly the same issue as above. And I don't have any
clue
> >>>>> where to dig. There is nothing on internet about that.
> >>>>>
> >>>>> Anyone faced that already while installing Snappy?
> >>>>>
> >>>>> JM
> >>>>>
> >>>>> 2012/12/1, Jean-Marc Spaggiari <jean-marc@spaggiari.org>:
> >>>>>> Sorry, I forgot to paste few maybe useful lines. I have the
lib in
> >>>>>> /usr/local/lib copied properly, and I have the HBASE_LIBRARY_PATH
> set
> >>>>>> correctly. Do I need to restart HBase to run this test?
> >>>>>>
> >>>>>> hbase@node3:~/hbase-0.94.2$ export
> HBASE_LIBRARY_PATH=/usr/local/lib/
> >>>>>> hbase@node3:~/hbase-0.94.2$ bin/hbase
> >>>>>> org.apache.hadoop.hbase.util.CompressionTest /tmp/test.txt snappy
> >>>>>> 12/12/01 18:55:29 INFO util.ChecksumType:
> >>>>>> org.apache.hadoop.util.PureJavaCrc32 not available.
> >>>>>> 12/12/01 18:55:29 INFO util.ChecksumType: Checksum can use
> >>>>>> java.util.zip.CRC32
> >>>>>> 12/12/01 18:55:29 INFO util.ChecksumType:
> >>>>>> org.apache.hadoop.util.PureJavaCrc32C not available.
> >>>>>> 12/12/01 18:55:29 DEBUG util.FSUtils: Creating
> file:/tmp/test.txtwith
> >>>>>> permission:rwxrwxrwx
> >>>>>> 12/12/01 18:55:29 WARN util.NativeCodeLoader: Unable to load
> >>>>>> native-hadoop library for your platform... using builtin-java
> classes
> >>>>>> where applicable
> >>>>>> 12/12/01 18:55:29 WARN metrics.SchemaConfigured: Could not determine
> >>>>>> table and column family of the HFile path /tmp/test.txt. Expecting
> at
> >>>>>> least 5 path components.
> >>>>>> 12/12/01 18:55:29 WARN snappy.LoadSnappy: Snappy native library
is
> >>>>>> available
> >>>>>> 12/12/01 18:55:29 WARN snappy.LoadSnappy: Snappy native library
not
> >>>>>> loaded
> >>>>>> Exception in thread "main" java.lang.RuntimeException: native
snappy
> >>>>>> library not available
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.io.compress.SnappyCodec.getCompressorType(SnappyCodec.java:123)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.io.compress.CodecPool.getCompressor(CodecPool.java:100)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.io.compress.CodecPool.getCompressor(CodecPool.java:112)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.hbase.io.hfile.Compression$Algorithm.getCompressor(Compression.java:264)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.hbase.io.hfile.HFileBlock$Writer.<init>(HFileBlock.java:739)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.hbase.io.hfile.HFileWriterV2.finishInit(HFileWriterV2.java:127)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.hbase.io.hfile.HFileWriterV2.<init>(HFileWriterV2.java:118)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.hbase.io.hfile.HFileWriterV2$WriterFactoryV2.createWriter(HFileWriterV2.java:101)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.hbase.io.hfile.HFile$WriterFactory.create(HFile.java:394)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.hbase.util.CompressionTest.doSmokeTest(CompressionTest.java:108)
> >>>>>>  at
> >>>>>>
> org.apache.hadoop.hbase.util.CompressionTest.main(CompressionTest.java:138)
> >>>>>> hbase@node3:~/hbase-0.94.2$ ll /usr/local/lib/
> >>>>>> total 572
> >>>>>> -rw-r--r-- 1 root staff 391614 déc  1 18:33 libsnappy.a
> >>>>>> -rwxr-xr-x 1 root staff    957 déc  1 18:33 libsnappy.la
> >>>>>> lrwxrwxrwx 1 root staff     18 déc  1 18:33 libsnappy.so ->
> >>>>>> libsnappy.so.1.1.3
> >>>>>> lrwxrwxrwx 1 root staff     18 déc  1 18:33 libsnappy.so.1
->
> >>>>>> libsnappy.so.1.1.3
> >>>>>> -rwxr-xr-x 1 root staff 178210 déc  1 18:33 libsnappy.so.1.1.3
> >>>>>> drwxrwsr-x 4 root staff   4096 jui 13 10:06 python2.6
> >>>>>> drwxrwsr-x 4 root staff   4096 jui 13 10:06 python2.7
> >>>>>> hbase@node3:~/hbase-0.94.2$
> >>>>>>
> >>>>>>
> >>>>>> 2012/12/1, Jean-Marc Spaggiari <jean-marc@spaggiari.org>:
> >>>>>>> Hi,
> >>>>>>>
> >>>>>>> I'm currently using GZip and want to move to Snappy.
> >>>>>>>
> >>>>>>> I have downloaded the tar file, extracted, build, make install,
> make
> >>>>>>> check, everything is working fine.
> >>>>>>>
> >>>>>>> However, I'm not able to get this working:
> >>>>>>> bin/hbase org.apache.hadoop.hbase.util.CompressionTest
> /tmp/test.txt
> >>>>>>> snappy
> >>>>>>> 12/12/01 18:46:21 WARN snappy.LoadSnappy: Snappy native
library not
> >>>>>>> loaded
> >>>>>>> Exception in thread "main" java.lang.RuntimeException: native
> snappy
> >>>>>>> library not available
> >>>>>>>         at
> >>>>>>>
> org.apache.hadoop.io.compress.SnappyCodec.getCompressorType(SnappyCodec.java:123)
> >>>>>>>
> >>>>>>> Sound like HBase is not able to find the native library.
How can I
> >>>>>>> tell HBase where the library is?
> >>>>>>>
> >>>>>>> Thanks,
> >>>>>>>
> >>>>>>> JM
> >>>>>>>
> >>>>
> >>>>
> >>>
> >
>
>

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