DB Connect 3.0.9 Java OOM

Applicability

Description

The following error message appears:

/opt/splunk/etc/apps/splunk_app_db_connect/linux_x86_64/bin/server.sh java.lang.OutOfMemoryError: GC overhead limit exceeded

Investigation

STEPS TAKEN:

Reviewed the main error which is a Java OOM error message.

-0800 ERROR ExecProcessor [23990 ExecProcessor] - message from "/opt/splunk/etc/apps/splunk_app_db_connect/linux_x86_64/bin/server.sh" java.lang.OutOfMemoryError: GC overhead limit exceeded

Resolution

Set '-Xms4g -Xmx6g' as per the Oracle posting below which sets a min and max threshold for

Java memory usage.

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Further advice:

1. Upgrade Java to Version 11
2. Upgrade DB Connect to 3.15

The issues following the upgrade were that the Java version of 1.8 was not supported.

The screenshot states:

Cannot communicate with task server, please check your settings.

['message': 'Unsupported JRE detected', 'jre_using': 'Using Oracle Corporation JRE version 1.8, Java HotSpot(TM) 64-Bit Server VM', 'jre_need': 'Need Oracle Corporation JRE version 11+ or OpenJDK 11+') validate java command: /usr/java/jdk1.8.0_261-amd64/jre/bin/java.Cannot communicate with task server, please check your settings.DBX Server, is not available make sure it is started and listening on 9998 port or consult documentation for details.

Please upgrade the Java version to a minimum of 11.

Documentation: Prerequisites

Java Runtime Environment (JRE) requirements

Download and install one of the following compatible versions of the Java Runtime Environment:

Java Platform, Open Java Development Kit (OpenJDK) 11 from the OpenJava Project.
Java Platform, Java Runtime Environment (JRE) 17 from Java Platform, Standard Edition
Java Platform, Open Java Development Kit (OpenJDK) 17 from the OpenJava Project.
Java Platform, Java Runtime Environment (JRE) 18 from Java Platform, Standard Edition
Java Platform, Open Java Development Kit (OpenJDK) 18 from the OpenJava Project.
Java Platform, AdoptOpenJDK 17 the AdoptOpenJDK Project
Java Platform, AdoptOpenJDK 18 the AdoptOpenJDK Project
Java Platform, Azul JDK 17 the Azul JDK product
Java Platform, Azul JDK 18 the Azul JDK product

Issue with JAVA mapping and JAVA heap memory issue.

Related Links

Prerequisites

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