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https://issues.apache.org/jira/browse/SAMZA-2747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ajo Thomas resolved SAMZA-2747.
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Resolution: Fixed
> Standby bug fixes
> -----------------
>
> Key: SAMZA-2747
> URL: https://issues.apache.org/jira/browse/SAMZA-2747
> Project: Samza
> Issue Type: Bug
> Reporter: Bharath Kumarasubramanian
> Assignee: Bharath Kumarasubramanian
> Priority: Major
> Time Spent: 20m
> Remaining Estimate: 0h
>
> {*}Problem{*}:
> * Standby feature is broken for jobs that don't have explicit side inputs
> * Change logged stores are treated as non-change logged for standby
> containers
> {*}Description{*}:
> [PR 1367|https://github.com/apache/samza/pull/1367] - Introduced a bug where
> jobs with no side inputs caused jobs to not bootstrap data for logged stores.
> The root cause was related to mutation of _taskSideInputStoreSSPs_ as
> _changelogSSPs_ that were added to it during initialization were ignored
> since the initialization of _hasSideInputs_ happened before.
> [PR 1491|https://github.com/apache/samza/pull/1491] - Introduced a bug where
> the logged stores were incorrectly classified as non-logged stores for
> standby container resulting in discarding of state at the end of container
> lifecycle. The root cause was similar to above where _sideInputStoreNames_
> was initialized prior to updating _changelogSSPs_
> Bottom line: Mutation of certain fields related to side inputs were out of
> order and refactor PRs (1367 and 1491) were not aware of this assumption.
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