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https://issues.apache.org/jira/browse/CASSANDRA-17048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17511828#comment-17511828
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Andres de la Peña commented on CASSANDRA-17048:
-----------------------------------------------

[~jlewandowski] [~blerer] Seems like this has made 
{{org.apache.cassandra.io.sstable.LegacySSTableTest.testStreamLegacyCqlTables}} 
flaky:

https://butler.cassandra.apache.org/#/ci/upstream/workflow/Cassandra-trunk/failure/org.apache.cassandra.io.sstable/LegacySSTableTest/testStreamLegacyCqlTables
https://ci-cassandra.apache.org/job/Cassandra-trunk/1039/testReport/org.apache.cassandra.io.sstable/LegacySSTableTest/testStreamLegacyCqlTables/

CircleCI shows a 4% flakiness:
https://app.circleci.com/pipelines/github/adelapena/cassandra/1421/workflows/916a4466-92e8-4115-b4e2-1a951722f409/jobs/14212

 

> Replace sequential sstable generation identifier with UUID v1
> -------------------------------------------------------------
>
>                 Key: CASSANDRA-17048
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17048
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Local/SSTable
>            Reporter: Jacek Lewandowski
>            Assignee: Jacek Lewandowski
>            Priority: Normal
>             Fix For: 4.1
>
>          Time Spent: 9h 50m
>  Remaining Estimate: 0h
>
> Replace the current sequential sstable generation identifier with ULID based.
> ULID is better because we do not need to scan the existing files to pick the 
> starting number as well as we can generate globally unique identifiers. 



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