JIRA JVM Garbage Collection

Simon Logan

Hi,

 

Our JIRA instance repeatedly fails to allocate memory, which forces a garbage collection ( see log extract below ). This doesn't seem right, does anyone know if this is expected behaviour or how if could be rectified?

 

2018-10-11T08:51:15.350+0100: 2391691.952: [GC (Allocation Failure) [PSYoungGen: 674740K->12516K(681472K)] 1711894K->1050236K(1724416K), 0.0524143 secs] [Times: user=0.07 sys=0.01, r

eal=0.05 secs]

2018-10-11T08:51:19.777+0100: 2391696.379: [GC (Allocation Failure) [PSYoungGen: 677604K->11170K(681472K)] 1715324K->1050424K(1724416K), 0.0597589 secs] [Times: user=0.07 sys=0.01, r

eal=0.06 secs]

2018-10-11T08:51:24.986+0100: 2391701.588: [GC (Allocation Failure) [PSYoungGen: 676258K->10053K(681472K)] 1715512K->1050237K(1724416K), 0.0491620 secs] [Times: user=0.06 sys=0.00, r

eal=0.05 secs]

2018-10-11T08:51:29.511+0100: 2391706.113: [GC (Allocation Failure) [PSYoungGen: 676165K->13181K(681984K)] 1716349K->1053950K(1724928K), 0.0533946 secs] [Times: user=0.07 sys=0.01, r

eal=0.05 secs]

Thanks

Simon

Alexis Robert

Hi @Simon Logan, 

 

you're right, GC should not be that often. Can you please share some information about the server hosting Jira, specifically the amount of RAM ?

It would be useful to also have a look at what is set for the JVM memory settings in <jira_install_dir>/bin/setenv.sh at the JVM_MINIMUM_MEMORY and JVM_MAXIMUM_MEMORY setting.

 

You can also have a look at the Atlassian documentation on JVM settings here.

 

Let me know if this helps, 

 

--Alexis