[LUCENE-10316] fix TestLRUQueryCache.testCachingAccountableQuery failure

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Component/s: core/search
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Patrick Zhai
• Created: 14/Dec/21 19:04
• Updated: 28/Aug/22 16:32
• Resolved: 21/Dec/21 18:32

Description

I saw this build failure: https://jenkins.thetaphi.de/job/Lucene-9.x-Linux/348/
with following stack trace

java.lang.AssertionError: expected:<1388880.0> but was:<1544976.0>
	at __randomizedtesting.SeedInfo.seed([F7826B1EB37D545A:995B6ED46A95D1A0]:0)
	at org.junit.Assert.fail(Assert.java:89)
	at org.junit.Assert.failNotEquals(Assert.java:835)
	at org.junit.Assert.assertEquals(Assert.java:577)
	at org.junit.Assert.assertEquals(Assert.java:701)
	at org.apache.lucene.search.TestLRUQueryCache.testCachingAccountableQuery(TestLRUQueryCache.java:570)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1754)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:942)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:978)
	at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:992)
...
NOTE: reproduce with: gradlew test --tests TestLRUQueryCache.testCachingAccountableQuery -Dtests.seed=F7826B1EB37D545A -Dtests.multiplier=3 -Dtests.slow=true -Dtests.locale=ckb-IR -Dtests.timezone=Africa/Dakar -Dtests.asserts=true -Dtests.file.encoding=UTF-8 

It does not reproduce on my laptop on current main branch, but since the test is comparing an estimation with a 10% slack, it can fail for sure sometime.

Issue Links

• links to: GitHub Pull Request #542