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https://issues.apache.org/jira/browse/HUDI-5433?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Raymond Xu updated HUDI-5433:
-----------------------------
Sprint: 0.13.0 Final Sprint, 0.13.0 Final Sprint 2 (was: 0.13.0 Final
Sprint)
> Fix the way we deduce the pending instants for MDT writes
> ---------------------------------------------------------
>
> Key: HUDI-5433
> URL: https://issues.apache.org/jira/browse/HUDI-5433
> Project: Apache Hudi
> Issue Type: Bug
> Components: metadata
> Reporter: sivabalan narayanan
> Assignee: sivabalan narayanan
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 0.13.0
>
>
> we trigger compaction in MDT, only when there are no pending inflights apart
> from the one thats currently updating the MDT. So we use below code snippet
> for it.
>
> {code:java}
> List<HoodieInstant> pendingInstants =
> dataMetaClient.reloadActiveTimeline().filterInflightsAndRequested()
> .findInstantsBefore(instantTime).getInstants(); {code}
> As you could see, we use "findInstantsBefore" which could not yield right
> results at all times.
>
> So, we need to find all inflight instants and see if there are any except the
> current commit thats updating the MDT. If there are any, we should defer
> compaction.
> Impact:
> writes to MDT might fail if there was any missed inflight and later it was
> rolledback. Users have to disable MDT and make progress.
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