Jason Gerlowski created SOLR-17139:
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             Summary: Fix reproducibly failing seed for PeerSyncWithLeaderTest
                 Key: SOLR-17139
                 URL: https://issues.apache.org/jira/browse/SOLR-17139
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
          Components: Tests
    Affects Versions: main (10.0)
            Reporter: Jason Gerlowski


PeerSyncWithLeaderTest has been flaky for some time, failing somewhere between 
1 and 5% of runs going as far back as 2018 according to fucit.

Usually I'm unable to reproduce failures, but I found a seed this morning that 
fails (for me at least) 10 out of 10 times:

{code}
./gradlew :solr:core:test --tests 
"org.apache.solr.update.PeerSyncWithLeaderTest.test" -Ptests.jvms=12 
"-Ptests.jvmargs=-XX:TieredStopAtLevel=1 -XX:+UseParallelGC 
-XX:ActiveProcessorCount=1 -XX:ReservedCodeCacheSize=120m" 
-Ptests.seed=53640FCB37714D82 -Ptests.file.encoding=US-ASCII
{code}

(Environment is Intel Xeon, MacOS Sonoma, Java 17)

We should take this opportunity to fix the flakiness, while it's reproducible. 



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