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I came across a workaround that was suggested in an unofficial capacity by someone at AppDynamics during their local lab explorations. While this solution isn't officially supported by AppDynamics, it has proven to be effective for adjusting the log levels for both the Proxy and the Watchdog components within my AppDynamics setup. I'd like to share the steps involved, but please proceed with caution and understand that this is not a sanctioned solution.
I recommend changing only the log4j2.xml file, because the proxy messages look like are responsible for almost 99% of the log messages.
Here's a summary of the steps:
- Proxy Log Level: The log4j2.xml file controls this. You can find it within the appdynamics_bindeps module. For example, in my WSL setup, it's located at /home/wsl/.pyenv/versions/3.11.6/lib/python3.11/site-packages/appdynamics_bindeps/proxy/conf/logging/log4j2.xml. In the Docker image python:3.9, the path is /usr/local/lib/python3.9/site-packages/appdynamics_bindeps/proxy/conf/logging/log4j2.xml. Modify the seven log level itens <AsyncLogger> within the <Loggers> section to one of the following: debug, info, warn, error, or fatal.
- Watch Dog Log Level: This can be adjusted in the proxy.py file found within the appdynamics Python module. For example, in my WSL setup, it's located at /home/wsl/.pyenv/versions/3.11.6/lib/python3.11/site-packages/appdynamics/scripts/pyagent/commands/proxy.py. In the Docker image python:3.9, the path is /usr/local/lib/python3.9/site-packages/appdynamics/scripts/pyagent/commands/proxy.py. You will need to hardcode the log level in the configure_proxy_logger and configure_watchdog_logger functions by changing the level variable.
My versions
$ pip freeze | grep appdynamics
appdynamics==24.2.0.6567
appdynamics-bindeps-linux-x64==24.2.0
appdynamics-proxysupport-linux-x64==11.68.3
log4j2.xml
<Loggers>
<AsyncLogger name="com.singularity" level="info" additivity="false">
<AppenderRef ref="Default"/>
<AppenderRef ref="RESTAppender"/>
<AppenderRef ref="Console"/>
</AsyncLogger>
<AsyncLogger name="com.singularity.dynamicservice" level="info" additivity="false">
<AppenderRef ref="DynamicServiceAppender"/>
</AsyncLogger>
<AsyncLogger name="com.singularity.ee.service.datapipeline" level="info" additivity="false">
<AppenderRef ref="DataPipelineAppender"/>
<AppenderRef ref="Console"/>
</AsyncLogger>
<AsyncLogger name="com.singularity.datapipeline" level="info" additivity="false">
<AppenderRef ref="DataPipelineAppender"/>
<AppenderRef ref="Console"/>
</AsyncLogger>
<AsyncLogger name="com.singularity.BCTLogger" level="info" additivity="false" >
<AppenderRef ref="BCTAppender"/>
</AsyncLogger>
<AsyncLogger name ="com.singularity.api" level="info" additivity="false">
<AppenderRef ref="APIAppender"/>
</AsyncLogger>
<AsyncLogger name="com.singularity.segment.TxnTracer" level="info" additivity="false">
<AppenderRef ref="Default"/>
<AppenderRef ref="Console"/>
</AsyncLogger>
<Root level="error">
<AppenderRef ref="Console"/>
<AppenderRef ref="Default"/>
</Root>
</Loggers>
proxy.py
def configure_proxy_logger(debug):
logger = logging.getLogger('appdynamics.proxy')
level = logging.DEBUG if debug else logging.INFO
pass
def configure_watchdog_logger(debug):
logger = logging.getLogger('appdynamics.proxy')
level = logging.DEBUG if debug else logging.INFO
pass
Suggestion
Change the hardcoded variables by environment variables:
log4j2.xml file, change from [level="info"] to
proxy.py file, change from [logging.DEBUG if debug else logging.INFO] to
[os.getenv("APP_APPD_WATCHDOG_LOG_LEVEL", "info").upper()]
Warning
Please note, these paths and methods may vary based on your AppDynamics version and environment setup. Always backup files before making changes and be aware that updates to AppDynamics may overwrite your customizations.
I hope this helps!
Here on StackOverFlow I share a script to change log4j2.xml and proxy.py automatically.
Besides the script, I put a tip on how to do this inside a Dockerfile.
Basically, I replace the hardcoded values on log4j2.xml and proxy.py by environment variables that allow you to change them more easily on deploy.
log4j2.xml with environment variable
proxy.py with environment variable
def configure_proxy_logger(debug):
logger = logging.getLogger('appdynamics.proxy')
level = os.getenv("APP_APPD_WATCHDOG_LOG_LEVEL", "info").upper()
pass
def configure_watchdog_logger(debug):
logger = logging.getLogger('appdynamics.proxy')
level = os.getenv("APP_APPD_WATCHDOG_LOG_LEVEL", "info").upper()
pass
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