[SOLR-9367] TestInjection's use of a static Random means that sequences of events can be diff for the same test seed depending on wether individual methods are run, or entire test classes, or multiple classes in the same slave JVM

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.2, 7.0
• Assignee: Chris M. Hostetter
• Reporter: Chris M. Hostetter
• Created: 02/Aug/16 03:51
• Updated: 08/Jun/19 18:38
• Resolved: 10/Aug/16 00:52

Description

While digging through SOLR-9363, I realized that the reason the failures reproduced when running the entire -Dtestcase but not the individual -Dtests.method was because TestInjection was behaving differently in those cases.

This is because TestInjection uses a static Random instance – allthough it is initialized based on the tests.seed sysprop to try to be reproducible, it's behavior still very much depends on how many testcases are run in that slave JVM, and/or how many test methods are run.

Issue Links

• breaks: SOLR-9363 TestStressCloudBlindAtomicUpdates.test_dv_stored() failure
• is related to: SOLR-9366 replicas in LIR seem to still be participating in search requests