Java GC (Allocation Failure)

Question

Why always \"GC (Allocation Failure)\"?

Java HotSpot(TM) 64-Bit Server VM (25.25-b02) for linux-amd64 JRE (1.8.0_25-b17),

CommandLi         


        

Answer 1

"Allocation Failure" is a cause of GC cycle to kick in.

"Allocation Failure" means that no more space left in Eden to allocate object. So, it is normal cause of young GC.

Older JVM were not printing GC cause for minor GC cycles.

"Allocation Failure" is almost only possible cause for minor GC. Another reason for minor GC to kick could be CMS remark phase (if +XX:+ScavengeBeforeRemark is enabled).