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Re: setMaxMapAttempts() isn't working - Hadoop - [mail # user]
...I checked cdh3b2.   private void setMaxTaskAttempts() {     if (isMapTask()) {       this.maxTaskAttempts = conf.getMaxMapAttempts();     } else { &nb...
   Author: Ted Yu, 2010-11-05, 23:55
[expand - 1 more] - Re: XmlInputFormat - Hadoop - [mail # general]
...This link has more information: http://mail-archives.apache.org/mod_mbox/hadoop-general/201007.mbox/%[EMAIL PROTECTED]%3E  I personally store hadoop/hbase discussions in gmail so that I...
   Author: Ted Yu, 2010-10-27, 16:29
Re: FUSE HDFS significantly slower - Hadoop - [mail # user]
...https://issues.apache.org/jira/browse/HADOOP-3805 tried to mitigate this problem.  On Mon, Oct 25, 2010 at 10:17 PM, aniket ray  wrote:  ...
   Author: Ted Yu, 2010-10-26, 05:40
Re: What is the best to terminate a Map job without it being retried - Hadoop - [mail # user]
...How about deleting/moving the dirty files in your mapper or in another job ?  On Fri, Oct 8, 2010 at 4:30 PM, Steve Kuo  wrote:  ...
   Author: Ted Yu, 2010-10-08, 23:35
Re: conf.setCombinerClass in Map/Reduce - Hadoop - [mail # user]
...If input to reducer is of , the combiner would take in  and emit .  On Tue, Oct 5, 2010 at 10:03 PM, Shi Yu  wrote:  ...
   Author: Ted Yu, 2010-10-06, 22:37
Re: Passing commandline arguments to Mapper class - Hadoop - [mail # user]
...When you are passing a commandline argument while running the job (using '-D'), then it is set for you in the configuration whenever job's configuration is created.  On Sat, Oct 2, 2010...
   Author: Ted Yu, 2010-10-03, 00:29
[expand - 1 more] - Re: java.lang.RuntimeException: java.io.EOFException at org.apache.hadoop.io.WritableComparator.compare(WritableComparator.java:103) - Hadoop - [mail # user]
...Line 84 is empty. Line 83 is:           out.writeUTF(query_id);  Please send the stack trace that corresponds to your attachment.  In the very begining of ...
   Author: Ted Yu, 2010-09-30, 17:42
[expand - 1 more] - Re: Proper blocksize and io.sort.mb setting when using compressed LZO files - Hadoop - [mail # user]
...The default is 100MB for InMemory File System:       int size = Integer.parseInt(conf.get("fs.inmemory.size.mb", "100")); ./src/core/org/apache/hadoop/fs/InMemoryFileSystem.ja...
   Author: Ted Yu, 2010-09-27, 16:40
[expand - 1 more] - Re: java.lang.OutOfMemoryError: GC overhead limit exceeded - Hadoop - [mail # user]
...-1 means there is no limit to reusing. At the same time, you can generate heap dump from OOME and analyze with YourKit, etc.  Cheers  On Sun, Sep 26, 2010 at 1:19 PM, Bradford Step...
   Author: Ted Yu, 2010-09-26, 21:35
Re: A new way to merge up those small files! - Hadoop - [mail # user]
...Edward: Thanks for the tool.  I think the last parameter can be omitted if you follow what hadoop fs -text does. It looks at a file's magic number so that it can attempt to *detect* the...
   Author: Ted Yu, 2010-09-25, 16:05
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