Menu
Allocation Failure happens when there isn't enough free space to create new objects in Young generation. Allocation failures triggers minor GC (to do a minor collection) to free up space in the heap for the allocation request. With minor GC, space is freed for the new allocation to to be made in the young generation.
A memory allocation failure message means that the active controller is low on memory after allocating these resources and does not have enough remaining memory to control a stack member.
"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).
"Allocation Failure" is cause of GC to kick is not correct. It is an outcome of GC operation.
GC kicks in when there is no space to allocate( depending on region minor or major GC is performed). Once GC is performed if space is freed good enough, but if there is not enough size it fails. Allocation Failure is one such failure. Below document have good explanation https://docs.oracle.com/javase/8/docs/technotes/guides/vm/gctuning/g1_gc.html
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With