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https://issues.apache.org/jira/browse/CASSANDRA-15783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17103943#comment-17103943
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ZhaoYang edited comment on CASSANDRA-15783 at 5/10/20, 8:40 PM:
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{color:#172b4d}In fact, it's not "repairedAt" causing the issue, it's the 
"isTransient" attribute. For non-ZCS, it's always "false" for streamed sstable 
writer, but for ZCS, "isTransient" is copied from source sstable.{color}

In case of the dtest with optimized repair, node3 finished anti-compaction and 
changed its sstable to "isTransient=true" because of incremental repair. And 
then node3 streams the sstable to node2.

[patch|https://github.com/apache/cassandra/pull/587] : mark "isTransient=false" 
for ZCS sstables and fixed some typos in transient replica document.
 [CI|https://circleci.com/workflow-run/1796a195-1c1b-4108-831c-2060a0b53499]


was (Author: jasonstack):
{color:#172b4d}In fact, it's not "repairedAt" causing the issue, it's the 
"isTransient" attribute. For non-ZCS, it's always "false" for streamed sstable 
writer, but for ZCS, "isTransient" is copied from source sstable.{color}

In case of the dtest with optimized repair, node3 finished anti-compaction and 
changed its sstable to "isTransient=true" because of incremental repair. And 
then node3 streams the sstable to node2.

[patch|https://github.com/apache/cassandra/pull/587] : mark "isTransient=false" 
for ZCS sstables.
 [CI|https://circleci.com/workflow-run/1796a195-1c1b-4108-831c-2060a0b53499]

> test_optimized_primary_range_repair - 
> transient_replication_test.TestTransientReplication
> -----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-15783
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15783
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Test/dtest
>            Reporter: Ekaterina Dimitrova
>            Assignee: Ekaterina Dimitrova
>            Priority: Normal
>             Fix For: 4.0-alpha
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> Dtest failure.
> Example:
> https://app.circleci.com/pipelines/github/ekaterinadimitrova2/cassandra/118/workflows/9e57522d-52fa-4d44-88d8-5cec0e87f517/jobs/585/tests



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