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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/46155/
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Review request for Ambari, Alejandro Fernandez and Nate Cole.
Bugs: AMBARI-15864
https://issues.apache.org/jira/browse/AMBARI-15864
Repository: ambari
Description
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STR:
With Ambari 2.2.2.0-408 build, install 2.2.9.0 cluster (HA cluster)
Perform EU to 2.4.2.0-178 till finalize step
Downgrade back to 2.2.9
Again run EU to 2.4.2.0
The problem is that the downgrade unlinks configurations, getting rid of
{{conf.backup}} and makes {{/etc/<component>/conf}} a directory again. However,
the only code which bootstraps {{conf.backup}} is executed on installation of
the stack. That action does not happen again between U->D->U.
As a way to catch this scenario, {{conf_select.select()}} tries to be smart and
checks for {{/etc/<component>/conf}} as a directory and if it finds that it is,
it will create {{conf.backup}}.
**The bug here is that the new {{/etc/<component</conf}} link points to
{{/usr/hdp/current/<component>/conf}} which is a link back to
{{/etc/<component>/conf}}. It should be linked to
{{/etc/<component>/conf.backup}} instead.**
Diffs
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ambari-common/src/main/python/resource_management/libraries/functions/conf_select.py
b5de69d
ambari-server/src/test/python/stacks/2.0.6/HBASE/test_phoenix_queryserver.py
9f52b57
ambari-server/src/test/python/stacks/2.0.6/YARN/test_historyserver.py caf1430
ambari-server/src/test/python/stacks/2.0.6/ZOOKEEPER/test_zookeeper_server.py
2bd9944
Diff: https://reviews.apache.org/r/46155/diff/
Testing
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OK
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Total run:959
Total errors:0
Total failures:0
OK
Thanks,
Jonathan Hurley
