Question

I have installed HDP 2.x, and hue. (2 hosts)

I need to solve this issue as I'm new to oozie workflows. I followed example here: http://www.oraclealchemist.com/news/hadoop-streaming-hue-oozie-workflows-hive/ It works perfectly if I have mapper and reducers in all hosts at respective paths only. I see ambari-qa smoke test of oozie is fine but when I submit a streaming job from Hue UI for Oozie, where mapper and reducers where shell scripts which performs word count (term frequency) and I wanted to use "Add File" (-file in hadoop command line) section in Oozie workflow editor and upload mapper and reducers to HDFS. After this change and submitting this job, there was an error. I get the following error for all attempts of map tasks:

2013-12-16 19:21:24,278 ERROR [main] org.apache.hadoop.streaming.PipeMapRed: configuration exception java.io.IOException: Cannot run program "/hadoop/yarn/local/usercache/root/appcache/application_1387201627160_0006/container_1387201627160_0006_01_000002/./maptf.sh": java.io.IOException: error=2, No such file or directory

This means it can't able to find mapper and reducer in that path where oozie/mapred/yarn will create files onfly. Do I have any oozie configuration and workflow issues? (logs by email: sandeepboda91083@gmail.com)

In HDFS, I have all paths and files setup correctly under root user.

Note: I can able to run streaming jobs without oozie as:

cd /root/mrtest/
ls
-rwxrwxrwx 1 root root 235 Dec 11 11:37 maptf.sh
-rwxrwxrwx 1 root root 273 Dec 11 11:37 redtf.sh

hadoop jar /usr/lib/hadoop-mapreduce/hadoop-streaming-2.2.0.2.0.6.0-76.jar -D stream.num.map.output.key.fields=1 -input crane_in1 -output crane_out2 -file ./maptf.sh -mapper maptf.sh -file ./redtf.sh -reducer redtf.sh

It seems I cant attach logs here. Please mail me for files and logs.

Was it helpful?

Solution

This is probably the same problems as these users on the Hue list.

If you edited the file with File Browser they might be corrupted because of some non Unix new lines. You should upload them straight and not modify them or use a more recent version of Hue (3.5 at this time of writing).

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