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https://issues.apache.org/jira/browse/HUDI-2559?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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sivabalan narayanan updated HUDI-2559:
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Component/s: multi-writer
writer-core
> Ensure unique timestamps are generated for commit times with concurrent
> writers
> -------------------------------------------------------------------------------
>
> Key: HUDI-2559
> URL: https://issues.apache.org/jira/browse/HUDI-2559
> Project: Apache Hudi
> Issue Type: Task
> Components: multi-writer, writer-core
> Reporter: sivabalan narayanan
> Assignee: sivabalan narayanan
> Priority: Major
> Labels: pull-request-available, release-blocker
> Fix For: 0.11.0
>
>
> Ensure unique timestamps are generated for commit times with concurrent
> writers.
> this is the piece of code in HoodieActiveTimeline which creates a new commit
> time.
> {code:java}
> public static String createNewInstantTime(long milliseconds) {
> return lastInstantTime.updateAndGet((oldVal) -> {
> String newCommitTime;
> do {
> newCommitTime = HoodieActiveTimeline.COMMIT_FORMATTER.format(new
> Date(System.currentTimeMillis() + milliseconds));
> } while (HoodieTimeline.compareTimestamps(newCommitTime,
> LESSER_THAN_OR_EQUALS, oldVal));
> return newCommitTime;
> });
> }
> {code}
> There are chances that a deltastreamer and a concurrent spark ds writer gets
> same timestamp and one of them fails.
> Related issues and github jiras:
> [https://github.com/apache/hudi/issues/3782]
> https://issues.apache.org/jira/browse/HUDI-2549
>
>
>
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