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From Eric Yang <ey...@yahoo-inc.com>
Subject Re: start-data-processors.sh
Date Thu, 28 Jan 2010 21:36:41 GMT
Echo on what Ari said.  Make sure your hdfs-site.xml is in HADOOP_CONF_DIR
or in the class path.  Demux uses this file to determine location of your
HDFS.

Regards,
Eric


On 1/28/10 11:58 AM, "Ariel Rabkin" <asrabkin@gmail.com> wrote:

> We don't use demux at my site, so I'd love to have Eric or Jerome jump
> in here.  But that said:
> 
> I believe the typical way to set this up is to have conf/chukwa-env.sh
> define HADOOP_CONF_DIR; the filesystem is then specified via the
> Hadoop configuration. (fs.default.name)  You shouldn't need to change
> chukwa-demux-conf.
> 
> In re processSinkFiles -- What version of Chukwa are you using?  In
> Chukwa 0.3, the only formal release we've done so far, there's no
> processSinkFiles.sh, and the line in start-data-processors that
> references it has been commented out.  You don't need it; references
> to it are a historical artifact that should go away in the next
> release.
> 
> --Ari
> 
> On Thu, Jan 28, 2010 at 11:15 AM, Corbin Hoenes <corbin@tynt.com> wrote:
>> I'm having some difficulty with the demux part of setting up chukwa.  I
>> assume I am supposed to run the start-data-processors.sh script to startup
>> all the map reduce jobs that handle demux and archiving.
>> 
>> My goal is to pull the logs we are collecting out of the sink files and into
>> something we can start to run our pig scripts on.
>> 
>> When I run start-data-processors it gives me this though:
>> 
>> org.apache.hadoop.mapred.InvalidInputException: Input path does not exist:
>> file:/chukwa/demuxProcessing/mrInput
>>        at 
>> org.apache.hadoop.mapred.FileInputFormat.listStatus(FileInputFormat.java:190)
>>        at 
>> org.apache.hadoop.mapred.SequenceFileInputFormat.listStatus(SequenceFileInput
>> Format.java:44)
>>        at 
>> org.apache.hadoop.mapred.FileInputFormat.getSplits(FileInputFormat.java:201)
>>        at 
>> org.apache.hadoop.mapred.JobClient.writeOldSplits(JobClient.java:851)
>>        at 
>> org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:822)
>>        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:771)
>>        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:1290)
>>        at org.apache.hadoop.chukwa.extraction.demux.Demux.run(Demux.java:192)
>> 
>> Which seems like I need to configure it to try to connect to hdfs rather than
>> file:/
>> 
>> Only docs I've found are here:
>> http://hadoop.apache.org/chukwa/docs/current/admin.html
>> Is there a guide to configuring chukwa-demux-conf.xml?
>> 
>> I also noticed start-data-processors.sh tries to start processSinkFiles.sh
>> which doesn't exist for me--do I need to get this script?s
>> 
>> 
>> 
> 
> 


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