after several try installing Lzo compression for hadoop, I need help because I have really no idea why it doesn't work.
I'using hadoop 1.0.4 on CentOs 6. I tried http://opentsdb.net/setup-hbase.html, https://github.com/kevinweil/hadoop-lzo and some others but i'm still getting error :
13/07/03 19:52:23 INFO lzo.GPLNativeCodeLoader: Loaded native gpl library
13/07/03 19:52:23 WARN lzo.LzoCompressor: java.lang.NoSuchFieldError: workingMemoryBuf
13/07/03 19:52:23 ERROR lzo.LzoCodec: Failed to load/initialize native-lzo library
even if native gpl is loaded. I've updated my mapred-site and core-site according to links below, I've copy/paste libs in right path (still according to links).
The real problem is that the lzo test works on the namenode :
13/07/03 18:55:47 INFO lzo.GPLNativeCodeLoader: Loaded native gpl library
13/07/03 18:55:47 INFO lzo.LzoCodec: Successfully loaded & initialized native-lzo library [hadoop-lzo rev ]
I've try setting several path in haddop-env.sh but there seems to be no right solution... So, if you have any idea, link ... ? I'm really interested
[edit] after a week, i'm still trying to make it functionnal. I've try sudhirvn.blogspot.fr/2010/08/hadoop-lzo-installation-errors-and.html but removing all Lzo and gplcompression libraries and then making a nez install was not better at all.
Is that due to my hadoop core version ? Is it possible to have hadoop-core-0.20 and hadoop-core-1.0.4 at the same time ? Should i compile Lzo on a 0.20 hadoop in order to use lzo ? By the way I already tried compiling hadoop-lzo like this :
CLASSPATH=/usr/lib/hadoop/hadoop-core-1.0.4.jar CFLAGS=-m64 CXXFLAGS=-m64 ant compile-native tar
If it helps the full error is :
INFO lzo.GPLNativeCodeLoader: Loaded native gpl library
WARN lzo.LzoCompressor: java.lang.NoSuchFieldError: workingMemoryBuf
ERROR lzo.LzoCodec: Failed to load/initialize native-lzo library
INFO lzo.LzoIndexer: [INDEX] LZO Indexing file test/table.lzo, size 0.00 GB...
WARN snappy.LoadSnappy: Snappy native library is available
INFO util.NativeCodeLoader: Loaded the native-hadoop library
INFO snappy.LoadSnappy: Snappy native library loaded
Exception in thread "main" java.lang.RuntimeException: native-lzo library not available
at com.hadoop.compression.lzo.LzopCodec.createDecompressor(LzopCodec.java:87)
at com.hadoop.compression.lzo.LzoIndex.createIndex(LzoIndex.java:229)
at com.hadoop.compression.lzo.LzoIndexer.indexSingleFile(LzoIndexer.java:117)
at com.hadoop.compression.lzo.LzoIndexer.indexInternal(LzoIndexer.java:98)
at com.hadoop.compression.lzo.LzoIndexer.index(LzoIndexer.java:52)
at com.hadoop.compression.lzo.LzoIndexer.main(LzoIndexer.java:137)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
I really want to use lzo because I have to deal with very large files on a rather small cluster (5 nodes). Having splittable compressed files could make it run really fast. Every remark or idea is welcome.
