> On July 13, 2016, 10:33 a.m., Jonathan Hurley wrote: > > I'm curious if you can make this simply by only using the > > `commandParams/version` property when calculating what to do. Here's an > > example of the various values during normal commands, upgrades, and > > downgrades. `version` seems to always be what you want, no? > > > > ``` > > NORMAL COMMANDS > > hostLevelParams > > stack_name = HDP > > stack_version = 2.3 > > current_version = 2.3.4.0-1234 > > > > commandParams > > version = 2.3.4.0-1234 > > > > > > UPGRADE > > hostLevelParams > > stack_name = HDP > > stack_version = 2.3 > > current_version = 2.3.4.0-1234 > > > > commandParams > > original_stack = 2.3 > > target_stack = 2.5 > > upgrade_direction = UPGRADE > > version = 2.5.0.0-9999 > > > > > > DOWNGRADE > > hostLevelParams > > stack_name = HDP > > stack_version = 2.5 > > current_version = 2.3.4.0-1234 > > > > commandParams > > original_stack = 2.3 > > target_stack = 2.5 > > upgrade_direction = DOWNGRADE > > version = 2.3.4.0-1234 > > downgrade_from_version = 2.5.0.0-9999 > > ``` > > Mugdha Varadkar wrote: > Thanks Jonathan Hurley. Actually this was done by taking reference from > similar code from > Ambari.(https://github.com/apache/ambari/commit/63f8d74f806aa55fcbb4e51b2c84a3fd0146c062#diff-a9a4cbc8111690ebc76b1e83491d2dba) > > @Jayush Luniya, can we use version in NORMAL COMMANDS/UPGRADE/DOWNGRADE > scenarios?
Actually, an even better option is this: ``` # determine which version to use for checking stack features; version is the most accurate but # may not always be available (especially on first install of the cluster) version_for_stack_feature_checks = version if not None else stack_version_unformatted ``` It's possible that on initial install, `version` isn't defined since we haven't calculated it yet. So, the above defaults to the stack version in that case. Now, version covers all 3 of your scenarios. - Jonathan ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/49987/#review142063 ----------------------------------------------------------- On July 13, 2016, 8:25 a.m., Mugdha Varadkar wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/49987/ > ----------------------------------------------------------- > > (Updated July 13, 2016, 8:25 a.m.) > > > Review request for Ambari, Alejandro Fernandez, Gautam Borad, Jonathan > Hurley, Jayush Luniya, Srimanth Gunturi, and Velmurugan Periasamy. > > > Bugs: AMBARI-17687 > https://issues.apache.org/jira/browse/AMBARI-17687 > > > Repository: ambari > > > Description > ------- > > Scenario: > 1. install ranger with stack 2.4 and ambari-2.4.0 > 2. register the version of stack 2.5 > 3. perform the upgrade > at the step where it where zookeepers are upgraded , just downgraded. > 4. downgrade was successful > 5. check ranger service status , it was down > try to restart the ranger but ranger startup is failing > > > Diffs > ----- > > > ambari-server/src/main/resources/common-services/ATLAS/0.1.0.2.3/package/scripts/params.py > 8445214 > > ambari-server/src/main/resources/common-services/HBASE/0.96.0.2.0/package/scripts/params_linux.py > 6d304d4 > > ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/params_linux.py > f24bd83 > > ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/params_linux.py > 571eebd > > ambari-server/src/main/resources/common-services/KAFKA/0.8.1/package/scripts/params.py > f47eee4 > > ambari-server/src/main/resources/common-services/KNOX/0.5.0.2.2/package/scripts/params_linux.py > 7e0477f > > ambari-server/src/main/resources/common-services/RANGER/0.4.0/package/scripts/params.py > fad4b9b > > ambari-server/src/main/resources/common-services/RANGER_KMS/0.5.0.2.3/package/scripts/params.py > dfcad32 > > ambari-server/src/main/resources/common-services/STORM/0.9.1/package/scripts/params_linux.py > 2afb187 > > ambari-server/src/main/resources/common-services/YARN/2.1.0.2.0/package/scripts/params_linux.py > 44a0446 > ambari-server/src/main/resources/stacks/HDP/2.3/upgrades/upgrade-2.5.xml > 4c122e9 > ambari-server/src/main/resources/stacks/HDP/2.4/upgrades/upgrade-2.5.xml > bbd0fe4 > > Diff: https://reviews.apache.org/r/49987/diff/ > > > Testing > ------- > > Test Ranger Downgrade from stack 2.5 to 2.4 > > > Thanks, > > Mugdha Varadkar > >
