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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/38487/
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(Updated Sept. 23, 2015, 2:52 p.m.)
Review request for Ambari, Jonathan Hurley and Robert Nettleton.
Changes
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I suggest that: disable caching by default. It's hard to say what are the
correct cach size values, because mostly its based on JVM memory, in case of
someone want to boost database performance, just enable it and set these new
values (if caching is enabled by default and someone not statisfied with the db
performance it is still needed to reset these properties)
Bugs: AMBARI-13036
https://issues.apache.org/jira/browse/AMBARI-13036
Repository: ambari
Description
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Problem:
Ambari does not cache database statements which leads to excessive parsing.
Solution:
Added internal and external statement caching feature to Ambari. Caching used
by default
Diffs (updated)
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ambari-server/src/main/java/org/apache/ambari/server/configuration/Configuration.java
e3686ac
ambari-server/src/main/java/org/apache/ambari/server/controller/ControllerModule.java
a40fae6
ambari-server/src/test/java/org/apache/ambari/server/configuration/ConfigurationTest.java
074fbb4
Diff: https://reviews.apache.org/r/38487/diff/
Testing
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Unit testing done.
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:31 h
[INFO] Finished at: 2015-09-17T17:21:55+00:00
[INFO] Final Memory: 48M/605M
[INFO] ------------------------------------------------------------------------
Functional testing:
Locally: done on Postgres & MySQL databases
Thanks,
Oliver Szabo
