[SOLR-16399] ExportWriter fails with max values for fields

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 9.1, main (10.0), 9.0.1
• Component/s: Export Writer
• Assignee: Kevin Risden
• Reporter: Kevin Risden
• Created: 02/Sep/22 13:46
• Updated: 25/Jan/23 16:16
• Resolved: 06/Sep/22 14:26

Description

TestExportWriter.testMultipleSorts has been hanging and epugh shared this seed that reproduced:

./gradlew :solr:core:test --tests “org.apache.solr.handler.export.TestExportWriter.testMultipleSorts” -Ptests.jvms=4 “-Ptests.jvmargs=-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=120m” -Ptests.seed=9ED4BC2C416D56E9 -Ptests.file.encoding=US-ASCI

https://lists.apache.org/list?[e-mail]:lte=1y:&header_body=org.apache.solr.handler.export.TestExportWriter.testMultipleSorts

Looking into the failure found that if Float.MAX_VALUE is chosen and document ends up being compared to the top doc. That document will get skipped since MAX_VALUE can't be more than MAX_VALUE.

This causes the export writer to hang looking for more documents indefinitely until the test framework times out.

Issue Links

• links to: GitHub Pull Request #995