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How to solve OOM error for Resilient-email.service

How To


Summary

This guide explains how to solve the OutOfMemory Error thrown in the "resilient-email.error" log.

Objective

The following error taken from "/var/log/resilient-email.error" log shows an "OutOfMemoryError".
    JVMDUMP030W Cannot write dump to file //heapdump.20220604.233744.4241.0002.phd: Permission denied
    JVMDUMP032I JVM requested Heap dump using '/tmp/heapdump.<date-id>.phd' in response of an event
    JVMDUMP010I Heap dump written to /tmp/heapdump.<date-id>.phd.phd
    JVMDUMP030W Cannot write dump to file //heapdump.<date-id>.phd.phd: Permission denied
     
...
     
    Exception in thread "Camel (camel-1) thread #23428 - JmsConsumer[email-service.test-connection]" Exception in thread "Camel (camel-1) thread #23424 - JmsConsumer[email-service.test-connection]" java/lang/OutOfMemoryError: Java heap space
    java.lang.OutOfMemoryError	at java/lang/ThreadGroup.uncaughtException (ThreadGroup.java:867)
    	at java/lang/ThreadGroup.uncaughtException (ThreadGroup.java:861)
    	at java/lang/Thread.uncaughtException (Thread.java:1341)
    Exception in thread "Camel (camel-1) thread #23434 - JmsConsumer[email-service.delete-connection]" 
    Exception in thread "Camel (camel-1) thread #23431 - JmsConsumer[email-service.test-connection]" Exception in thread "Camel (camel-1) thread #23435 - JmsConsumer[email-service.create-connection]" Exception in thread "Camel (camel-1) thread #23437 - JmsConsumer[email-service.test-connection]" Exception in thread "Camel (camel-1) thread #23404 - JmsConsumer[email-service.test-connection]" java.lang.OutOfMemoryErrorjava/lang/OutOfMemoryError: Java heap space

Environment

Any version.

Steps

Run the following command:
sudo systemctl restart resilient-email
If the issue persists, consider increasing the heap size for "resilient-email.service" as the following:
In  /usr/share/co3/conf/email-server.properties, Set emailJavaMaxHeap=<mb>
By default it is 1024 MB.

Document Location

Worldwide

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Document Information

Modified date:
15 August 2022

UID

ibm16593419

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