PHX engine: java.lang.OutOfMemoryError: GC overhead limit exceeded ------------------------------------------------------------------ Key: OVIRT-1768 URL: https://ovirt-jira.atlassian.net/browse/OVIRT-1768 Project: oVirt - virtualization made easy Issue Type: Bug Components: Hosting Reporter: Evgheni Dereveanchin Assignee: Evgheni Dereveanchin Priority: High Today I found the PHX engine portal in running very slow. Looking at the system, engine.log is full of stack traces with "java.lang.OutOfMemoryError: GC overhead limit exceeded" error. Memory on the system: {{# free -m}} {{ total used free shared buff/cache available}} {{Mem: 7810 3752 475 165 3582 3576}} {{Swap: 4095 1097 2998}} Engine version: {{# rpm -q ovirt-engine}} {{ovirt-engine-4.1.6.2-1.el7.centos.noarch}} Kernel/java version: {{# uname -a}} {{Linux engine-phx 3.10.0-693.2.2.el7.x86_64 #1 SMP Tue Sep 12 22:26:13 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux}} {{# which java}} {{/bin/java}} {{# ls -l /bin/java}} {{lrwxrwxrwx. 1 root root 22 Oct 6 05:16 /bin/java -> /etc/alternatives/java}} {{# ls -l /etc/alternatives/java}} {{lrwxrwxrwx. 1 root root 73 Oct 6 05:16 /etc/alternatives/java -> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.144-0.b01.el7_4.x86_64/jre/bin/java}} Will put the HA in maintenance, restart and upgrade the Engine