I replaced the hadoop-core-0.20.2-cdh3u1.jar to hadoop-core-1.0.1.jar ,but
build failed .
compile-java:
[javac] Compiling 24 source files to
/app/setup/cloud/toddlipcon-hadoop-lzo-c7d54ff/build/classes
[javac]
/app/setup/cloud/toddlipcon-hadoop-lzo-c7d54ff/src/java/com/hadoop/compression/lzo/LzoDecompressor.java:34:
com.hadoop.compression.lzo.LzoDecompressor is not abstract and does not
override abstract method getRemaining() in
org.apache.hadoop.io.compress.Decompressor
[javac] class LzoDecompressor implements Decompressor {
[javac] ^
[javac]
/app/setup/cloud/toddlipcon-hadoop-lzo-c7d54ff/src/java/com/hadoop/compression/lzo/LzopInputStream.java:277:
getCompressedData() in com.hadoop.compression.lzo.LzopInputStream cannot
override getCompressedData() in
org.apache.hadoop.io.compress.BlockDecompressorStream; attempting to use
incompatible return type
[javac] found : void
[javac] required: int
[javac] protected void getCompressedData() throws IOException {
[javac] ^
[javac]
/app/setup/cloud/toddlipcon-hadoop-lzo-c7d54ff/src/java/com/hadoop/compression/lzo/LzopInputStream.java:276:
method does not override or implement a method from a supertype
[javac] @Override
[javac] ^
[javac]
/app/setup/cloud/toddlipcon-hadoop-lzo-c7d54ff/src/java/com/hadoop/mapreduce/LzoIndexOutputFormat.java:31:
warning: [deprecation] cleanupJob(org.apache.hadoop.mapreduce.JobContext)
in org.apache.hadoop.mapreduce.OutputCommitter has been deprecated
[javac] @Override public void cleanupJob(JobContext jobContext)
throws IOException {}
[javac] ^
[javac] 3 errors
[javac] 1 warning
BUILD FAILED
/app/setup/cloud/toddlipcon-hadoop-lzo-c7d54ff/build.xml:216: Compile
failed; see the compiler error output for details.
On 10 April 2012 18:10, Jiajun Chen <[email protected]> wrote:
> Why can't i use this version:
> http://code.google.com/a/apache-extras.org/p/hadoop-gpl-compression/?redir=1
>
>
> On 17 March 2011 17:29, Ferdy Galema <[email protected]> wrote:
>
>> Updating the lzo libraries resolved the problem. Thanks for pointing it
>> out and thanks to Todd Lipcon for his hadoop-lzo-packager.
>>
>>
>> On 03/16/2011 06:35 PM, Stack wrote:
>>
>>> Poking in our mail archives, does it help? For example:
>>> http://search-hadoop.com/m/**QMDV41Sh1GI/lzo+compression&**
>>> subj=LZO+Compression<http://search-hadoop.com/m/QMDV41Sh1GI/lzo+compression&subj=LZO+Compression>
>>> St.Ack
>>>
>>> On Wed, Mar 16, 2011 at 10:28 AM, Ferdy Galema<ferdy.galema@kalooga.**
>>> com <[email protected]>> wrote:
>>>
>>>> We upgraded to Hadoop 0.20.1 and Hbase 0.90.1 (both CDH3B4). We are
>>>> using
>>>> 64bit machines.
>>>>
>>>> Starting goes great, only right after the first compaction we get this
>>>> error:
>>>> Uncaught exception in service thread regionserver60020.compactor
>>>> java.lang.AbstractMethodError:
>>>> com.hadoop.compression.lzo.**LzoCompressor.reinit(Lorg/**
>>>> apache/hadoop/conf/**Configuration;)V
>>>> at
>>>> org.apache.hadoop.io.compress.**CodecPool.getCompressor(**
>>>> CodecPool.java:105)
>>>> at
>>>> org.apache.hadoop.io.compress.**CodecPool.getCompressor(**
>>>> CodecPool.java:112)
>>>> at
>>>> org.apache.hadoop.hbase.io.**hfile.Compression$Algorithm.**
>>>> getCompressor(Compression.**java:200)
>>>> at
>>>> org.apache.hadoop.hbase.io.**hfile.HFile$Writer.**
>>>> getCompressingStream(HFile.**java:397)
>>>> at
>>>> org.apache.hadoop.hbase.io.**hfile.HFile$Writer.newBlock(**
>>>> HFile.java:383)
>>>> at
>>>> org.apache.hadoop.hbase.io.**hfile.HFile$Writer.**
>>>> checkBlockBoundary(HFile.java:**354)
>>>> at
>>>> org.apache.hadoop.hbase.io.**hfile.HFile$Writer.append(**
>>>> HFile.java:536)
>>>> at
>>>> org.apache.hadoop.hbase.io.**hfile.HFile$Writer.append(**
>>>> HFile.java:501)
>>>> at
>>>> org.apache.hadoop.hbase.**regionserver.StoreFile$Writer.**
>>>> append(StoreFile.java:836)
>>>> at org.apache.hadoop.hbase.**regionserver.Store.compact(**
>>>> Store.java:935)
>>>> at org.apache.hadoop.hbase.**regionserver.Store.compact(**
>>>> Store.java:733)
>>>> at
>>>> org.apache.hadoop.hbase.**regionserver.HRegion.**
>>>> compactStores(HRegion.java:**769)
>>>> at
>>>> org.apache.hadoop.hbase.**regionserver.HRegion.**
>>>> compactStores(HRegion.java:**714)
>>>> at
>>>> org.apache.hadoop.hbase.**regionserver.**CompactSplitThread.run(**
>>>> CompactSplitThread.java:81)
>>>>
>>>> Lzo worked fine. This is how I believe we used it.
>>>> # LZO compression in Hbase will pass through three layers:
>>>> # 1) hadoop-gpl-compression-*.jar in the hbase/lib directory; the entry
>>>> point
>>>> # 2) libgplcompression.* in the hbase native lib directory; the native
>>>> connectors
>>>> # 3) liblzo2.so.2 in the hbase native lib directory; the base native
>>>> library
>>>>
>>>> Anyway, it would be great if somebody could help us out.
>>>>
>>>>
>
>
> --
>
> 陈加俊 项目经理
> 优讯时代（北京）网络技术有限公司
> 优讯网 www.uuwatch.com
>
> 地址：北京市海淀区上地五街7号昊海大厦207
>
> 电话：010-82895510
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>
>
--
陈加俊 项目经理
优讯时代（北京）网络技术有限公司
优讯网 www.uuwatch.com
地址：北京市海淀区上地五街7号昊海大厦207
电话：010-82895510
传真：010-82896636
手机：15110038983
电邮：*[email protected]*
