[jira] [Updated] (HBASE-9533) List of imported jars is hard-coded and does not include netty, breaking MRv1 jobs

["Aleksandr Shulman (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-9533?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aleksandr Shulman updated HBASE-9533:
-------------------------------------

    Attachment: failed_mrv1_rowcounter_tt_taskoutput.out

Attached are the tasktracker logs, which are more valuable. The salient portion is this:
{code}Caused by: java.lang.NoClassDefFoundError: org/jboss/netty/channel/ChannelFactory
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:247)
	at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:802)
	at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:847)
	at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:873)
	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:675)
	... 19 more
Caused by: java.lang.ClassNotFoundException: org.jboss.netty.channel.ChannelFactory
	at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
	... 25 more{code}
                
> List of imported jars is hard-coded and does not include netty, breaking MRv1 jobs
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-9533
>                 URL: https://issues.apache.org/jira/browse/HBASE-9533
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>    Affects Versions: 0.95.2, 0.96.1
>            Reporter: Aleksandr Shulman
>            Assignee: Matteo Bertozzi
>             Fix For: 0.95.2, 0.96.1
>
>         Attachments: failed_mrv1_rowcounter_tt_taskoutput.out
>
>
> Observed behavior:
> Against trunk, using MRv1 with hadoop 1.0.4, r1393290, I am able to run MRv1 jobs (e.g. pi 2 4).
> However, when I use it to run MR over HBase jobs, they fail with the stack trace below.
> From the trace, the issue seems to be that it cannot find a class that the netty jar contains. This would make sense, given that the dependency jars that we use for the MapReduce job are hard-coded, and that the netty jar is not one of them.
> https://github.com/apache/hbase/blob/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/TableMapReduceUtil.java#L519
> Strangely, this is only an issue in trunk, not 0.95, even though the code hasn't changed.
> Command:
> {code}/bin/hbase org.apache.hadoop.hbase.mapreduce.RowCounter sampletable{code}
> TT logs (attached)
> Output from console running job:
> {code}13/09/13 16:02:58 INFO mapred.JobClient: Task Id : attempt_201309131601_0002_m_000000_2, Status : FAILED
> java.io.IOException: Cannot create a record reader because of a previous error. Please look at the previous logs lines from the task's full log for more details.
> 	at org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.createRecordReader(TableInputFormatBase.java:119)
> 	at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.<init>(MapTask.java:489)
> 	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:731)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> 	at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:396)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149)
> 	at org.apache.hadoop.mapred.Child.main(Child.java:249)
> 13/09/13 16:03:09 INFO mapred.JobClient: Job complete: job_201309131601_0002
> 13/09/13 16:03:09 INFO mapred.JobClient: Counters: 7
> 13/09/13 16:03:09 INFO mapred.JobClient:   Job Counters 
> 13/09/13 16:03:09 INFO mapred.JobClient:     SLOTS_MILLIS_MAPS=29913
> 13/09/13 16:03:09 INFO mapred.JobClient:     Total time spent by all reduces waiting after reserving slots (ms)=0
> 13/09/13 16:03:09 INFO mapred.JobClient:     Total time spent by all maps waiting after reserving slots (ms)=0
> 13/09/13 16:03:09 INFO mapred.JobClient:     Launched map tasks=4
> 13/09/13 16:03:09 INFO mapred.JobClient:     Data-local map tasks=4
> 13/09/13 16:03:09 INFO mapred.JobClient:     SLOTS_MILLIS_REDUCES=0
> 13/09/13 16:03:09 INFO mapred.JobClient:     Failed map tasks=1{code}
> Expected behavior:
> As a stopgap, the netty jar should be included in that list. More generally, there should be a more elegant way to include the jars that are needed.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira