lamngockhuong
/ ConsumeHeap.java
Created
May 3, 2019 07:19
— forked from mosheeshel/ConsumeHeap.java
Function to fill JVM/Java Heap, Java options to automatically create a Heapdump on that event and a companion script to upload resulting files to S3
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| import java.io.IOException; | |
| import java.util.Vector; | |
| /** | |
| * Created by moshee | |
| * on: 07/06/17 | |
| * to compile in place: `javac ConsumeHeap.java` | |
| * Execute: `java -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/var/log/app-`date +%s`-pid$$.hprof -XX:OnOutOfMemoryError=/opt/app/bin/upload_dump_s3.sh -Xmx2m ConsumeHeap` | |
| * HeapDumpOnOutOfMemoryError specifies to automatically create a dump when OOM occures | |
| * HeapDumpPath supplies a path to put that file |