How to increase the maximum heap size by using JVM options "-Xmx1024M" for Airbyte which is using Docker ?

To increase the maximum heap size for Airbyte using the JVM option

-Xmx1024M

in a Docker-based deployment, you can modify the

DEFAULT_JVM_OPTS

environment variable. Here are the steps to do this: 1. Edit the

.env

file: Locate the

.env

file in your Airbyte installation directory. This file contains environment variables that configure various aspects of Airbyte. 2. Set the JVM options: Add or modify the

DEFAULT_JVM_OPTS

variable to include the

-Xmx1024M

option. This will set the maximum heap size to 1024 MB. Your

.env

file should look something like this:

plaintext     DEFAULT_JVM_OPTS='-Xmx1024M -XX:+ExitOnOutOfMemoryError -XX:MaxRAMPercentage=75.0'

3. Restart Airbyte: After making these changes, restart your Airbyte instance to apply the new settings. You can do this by running the following commands:

bash     docker-compose down     docker-compose up -d

This will ensure that the new JVM options are applied to the Airbyte server and worker containers. ### Example

.env

File

plaintext # Other environment variables DEFAULT_JVM_OPTS='-Xmx1024M -XX:+ExitOnOutOfMemoryError -XX:MaxRAMPercentage=75.0'

### Additional Information - Manual Garbage Collection: If you continue to experience high memory usage, you can manually trigger the Java Garbage Collector (GC) in the worker container as a temporary workaround. SSH into the worker container and run the GC command:

bash     docker exec -it airbyte-worker /bin/bash     jcmd 1 GC.run

- Memory Limits: You can also adjust the memory limits for your jobs in the

.env

file. For example:

plaintext     JOB_MAIN_CONTAINER_MEMORY_REQUEST=4g     JOB_MAIN_CONTAINER_MEMORY_LIMIT=6g

For more details, you can refer to the relevant discussions and issues: - [Github Issue 16652](https://github.com/airbytehq/airbyte/issues/16652) - [Github Issue 27844](https://github.com/airbytehq/airbyte/issues/27844) If you need further assistance, please refer to the [Airbyte documentation](https://docs.airbyte.com/operator-guides/configuring-airbyte/#docker-deployments).

@kapa.ai In my .env file, i am seeing any DEFAULT_JVM_OPTS parameter, do i enter it by myself ?

Yes, you can add the

DEFAULT_JVM_OPTS

parameter to your

.env

file if it is not already present. This parameter is used to set default JVM options for the Airbyte server and worker containers. Here is an example of how you can set the

DEFAULT_JVM_OPTS

in your

.env

file:

env DEFAULT_JVM_OPTS='-XX:+ExitOnOutOfMemoryError -XX:MaxRAMPercentage=75.0'

This configuration sets the JVM to exit on an out-of-memory error and limits the maximum RAM usage to 75% of the available memory. For more details, you can refer to the relevant discussions and issues: - [Github Issue 16652](https://github.com/airbytehq/airbyte/issues/16652) - [Github Issue 36557](https://github.com/airbytehq/airbyte/issues/36557) If you need to debug or adjust other JVM options, you can also look into setting

JAVA_TOOL_OPTIONS

as described in the [Airbyte documentation](https://docs.airbyte.com/connector-development/debugging-docker#docker-compose-extension).