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From "Alejandro Fernandez" <afernan...@hortonworks.com>
Subject Re: Review Request 34010: RU wrong version of tez.tar.gz uploaded to HDFS
Date Mon, 11 May 2015 17:48:40 GMT

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https://reviews.apache.org/r/34010/#review83240
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ping...

- Alejandro Fernandez


On May 11, 2015, 5:27 p.m., Alejandro Fernandez wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/34010/
> -----------------------------------------------------------
> 
> (Updated May 11, 2015, 5:27 p.m.)
> 
> 
> Review request for Ambari, Andrew Onischuk, Dmitro Lisnichenko, Jonathan Hurley, Nate
Cole, Sumit Mohanty, Srimanth Gunturi, and Sid Wagle.
> 
> 
> Bugs: AMBARI-11039
>     https://issues.apache.org/jira/browse/AMBARI-11039
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Summary: Customers with Ambari 2.0.0 that performed an RU from say HDP 2.2.0.0 to 2.2.4.2
will not have the correct version of tez.tar.gz uploaded to HDFS.
> 
> Details: During HiveServer2 Restart in RU, it copied to wrong tez.tar.gz to HDFS (because
the symlink in /usr/hdp/current/tez is still pointing to the old version at this time).
> The reason why Service Checks pass is that these tarballs are compatible enough with
each other. However, during RU from 2.2.* to 2.3.*, this is likely to break.
> 
> Impact: Applications that depend on this tarball (Pig, Tez, Hive) will be running with
older classes. This does not appear to be breaking in HDP 2.2, otherwise customers would have
reported it. However, it certainly does have to be fixed in Ambari 2.1.0 because tez.tar.gz
has more significant changes and does encounter a version incompatibility error.
> 
> 
> Diffs
> -----
> 
>   ambari-common/src/main/python/resource_management/libraries/functions/dynamic_variable_interpretation.py
1e70219 
> 
> Diff: https://reviews.apache.org/r/34010/diff/
> 
> 
> Testing
> -------
> 
> Created a 3-node CentOS 6 cluster
> Installed Ambari 2.0.1
> Copied scripts
> Installed HDP 2.2.0.0 GA with HDFS, YARN, MR, Hive, ZK, Tez, Pig
> Added NameNode HA
> Performed an RU to HDP 2.2.4.2-2, which copied the correct tarball to HDFS.
> 
> Python unit tests passed,
> 
> ----------------------------------------------------------------------
> Total run:641
> Total errors:0
> Total failures:0
> OK
> 
> 
> Thanks,
> 
> Alejandro Fernandez
> 
>


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