How do you fix HeapDumpOnOutOfMemoryError?

How do you fix HeapDumpOnOutOfMemoryError?

Solution 2. Improve or fix the application to reduce memory usage

1. Generate a heap dump on OutOfMemoryError. Start the application with the VM argument -XX:+HeapDumpOnOutOfMemoryError.
2. Reproduce the problem.
3. Investigate the issue using the heap dump file.

What is a heap dump?

A heap dump is a snapshot of all the objects in the Java Virtual Machine (JVM) heap at a certain point in time. The JVM software allocates memory for objects from the heap for all class instances and arrays.

Where are Hprof files stored?

This file can be found in /conf. I would recommend increasing the memory setting and see if you continue to hit out of memory errors. If your system generates an HPROF file, please forward the HPROF file generated, your wrapper.

How do I increase heap size?

To increase the Application Server JVM heap size

1. Log in to the Application Server Administration Server.
2. Navigate to the JVM options.
3. Edit the -Xmx256m option. This option sets the JVM heap size.
4. Set the -Xmx256m option to a higher value, such as Xmx1024m.
5. Save the new setting.

What is UseContainerSupport?

What is +UseContainerSupport? -XX:+UseContainerSupport allows the JVM to read cgroup limits like available CPUs and RAM from the host machine and configure itself accordingly. Doing so allows the JVM to die with an OutOfMemoryError instead of the container being killed.

How do you make oom?

1. Step 1: Generate a heap dump on OutOfMemoryError. Start the application with the VM argument -XX:+HeapDumpOnOutOfMemoryError.
2. Step 2: Reproduce the problem.
3. Step3: Investigate the issue using the heap dump file.

What is PermSize and MaxPermSize?

The perm size should be set to 1024 Megabytes. The maximum perm size should be set to 1024 Megabytes. Oracle recommends that -Xmn and -Xmx be set to the same value. This eliminates potentially costly heap reallocations, and can reduce the amount of heap fragmentation that can occur.

Does onoutofmemoryerror crash the application?

-XX:OnOutOfMemoryError You can configure JVM to invoke any script when OutOfMemoryError is thrown. Most of the time, OutOfMemoryError doesn’t crash the application. However, it’s better to restart the application, once OutOfMemoryError happens.

What happens when OutOfMemoryError is thrown in Java?

You can configure JVM to invoke any script when OutOfMemoryError is thrown. Most of the time, OutOfMemoryError doesn’t crash the application. However, it’s better to restart the application, once OutOfMemoryError happens. Because OutOfMemoryError can potentially leave application in an unstable state.

How to diagnose OutOfMemoryError manually?

In order to diagnose OutOfMemoryError , or any memory-related problem, one would have to capture heap dump right at the moment or few moments before the application starts to experience OutOfMemoryError. It’s hard to do capture heap dump at the right moment manually because we will not know when OutOfMemoryError is going to be thrown.

How do I resolve the OutOfMemoryError in Beeline?

To resolve the OutOfMemoryError exception in Beeline, launch Beeline using the following command, and then retry the Hive query: In a 32-bit Java Runtime Environment (JRE), the application can use up to 1 GB of memory by default.