Jeff Zhang created TEZ-1894:
-------------------------------
Summary: No checkOutputSpecs for MROutput
Key: TEZ-1894
URL: https://issues.apache.org/jira/browse/TEZ-1894
Project: Apache Tez
Issue Type: Bug
Reporter: Jeff Zhang
Assignee: Jeff Zhang
Priority: Critical
MROutput won't check whether the destination folder exists, so it would cause
weird result.
E.g. I run tez WordCount example with 5 partitions, it would generate 5 part
files, and then run the same WordCount example with 1 partition, it would just
override one part file, in that case the results of 2 dags coexist in the same
folder.
{code}
Found 6 items
-rw-r--r-- 1 jzhang supergroup 0 2014-12-28 14:38 output/_SUCCESS
-rw-r--r-- 1 jzhang supergroup 15 2014-12-28 14:38
output/part-v001-o000-00000
-rw-r--r-- 1 jzhang supergroup 8198 2014-12-28 14:37
output/part-v001-o000-00001
-rw-r--r-- 1 jzhang supergroup 7372 2014-12-28 14:37
output/part-v001-o000-00002
-rw-r--r-- 1 jzhang supergroup 8575 2014-12-28 14:37
output/part-v001-o000-00003
-rw-r--r-- 1 jzhang supergroup 6755 2014-12-28 14:37
output/part-v001-o000-00004
{code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
