[jira] [Commented] (IMPALA-7003) Support erasure-coding in impala

["ASF subversion and git services (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IMPALA-7003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16476769#comment-16476769 ] 

ASF subversion and git services commented on IMPALA-7003:
---------------------------------------------------------

Commit 13a1acd7e42b533c39b9f4eea1c17823bde4c1c5 in impala's branch refs/heads/master from [~tianyiwang]
[ https://git-wip-us.apache.org/repos/asf?p=impala.git;h=13a1acd ]

IMPALA-7003: Deflake erasure coding data loading

Erasure coding data loading is flaky in two ways:
1. HBase sometimes doesn't work because of HBase-19369
2. Nested data loading sometimes fails because the HDFS namenode cannot
   find enough good datanodes.

For problem 1, this patch enables erasure coding only on /test-warehouse
directory. For problem 2, this patch sets
dfs.namenode.redundancy.considerLoad to false, preventing namenode from
excluding heavily-loaded datanodes.

Change-Id: I219106cd3ec7ffab7a834700f2a722b165e5f66c
Reviewed-on: http://gerrit.cloudera.org:8080/10362
Reviewed-by: Alex Behm <al...@cloudera.com>
Tested-by: Impala Public Jenkins <im...@cloudera.com>


> Support erasure-coding in impala
> --------------------------------
>
>                 Key: IMPALA-7003
>                 URL: https://issues.apache.org/jira/browse/IMPALA-7003
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Frontend, Infrastructure
>    Affects Versions: Impala 3.0
>            Reporter: Tianyi Wang
>            Priority: Critical
>
> This is the parent Jira for the erasure coding feature



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