[ZOOKEEPER-3044] OutOfMemoryError exceptions in Jenkins when running tests

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.6.0
• Fix Version/s: 3.6.0
• Component/s: build-infrastructure, tests
• Assignee: Patrick D. Hunt
• Reporter: Bogdan Kanivets
• Created: 15/May/18 18:10
• Updated: 19/May/18 23:40
• Resolved: 18/May/18 16:04

Description

I've spot checked some failing test results and noticed OutOfMemoryError on some of them

trunk - java 10 - testQuorumSystemChange - build # 65

trunk - java 10 - testQuorumSystemChange - build # 69

trunk - java 9 - testWatcherAutoResetDisabledWithGlobal

trunk - java 10 - testHammer

Right now the test command is:
ant -Dtest.junit.maxmem=2g -Dtest.output=no -Dtest.junit.threads=8 -Dtest.junit.output.format=xml -Djavac.target=1.9 clean test-core-java

Is it possible to decrease the number of threads or increase maxmem?