Alejandro Fernandez created AMBARI-11306:
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Summary: RU to copy correct version of tarball, including
tez.tar.gz and mapreduce.tar.gz
Key: AMBARI-11306
URL: https://issues.apache.org/jira/browse/AMBARI-11306
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 2.0.0
Reporter: Alejandro Fernandez
Assignee: Alejandro Fernandez
Fix For: 2.1.0
We copy tez.tar.gz to HDFS in several places, including Resource Manager Start.
The problem is that during Resource Manager Start in RU it copies
/usr/hdp/current/tez-client/lib/tez.tar.gz to hdfs:///hdp/apps/{{
hdp_stack_version }}/tez/
for the hdp_stack_version value that comes from running "hdp-select status
hadoop-yarn-resourcemanager".
So the destination is correct (uses the "to" version), but the source is
incorrect because the tez-client symlink is still pointing to the older
version, since tez-client only switches to the newer version when the Clients
are upgraded, which occurs later during the orchestration.
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.
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.
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