send logs in json format to synapse application logs

Question

I want to send logs in logs from syanpse notebook to syanspe application in form fo json.
The below code is able to send code only in string format .

Logger= spark._jvm.org.apache.log4j.Logger
mylogger = Logger.getLogger(__name__)

I need to send logs in json format according to some research it was found that
in order to send logs from synapse in json format certain modification are required in log4j.properties file 
these lines of code needs to be added to log4j.layout.jsonLayout
log4j.rootLogger=INFO, filelog4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=pyspark.log
log4j.appender.file.layout=org.apache.log4j.layout.JsonLayout ref links:-
https://logging.apache.org/log4j/2.x/manual/layouts.html#json-template-layout https://logging.apache.org/log4j/2.x/manual/configuration.html#JSON Requesting repose Thank you

Answer 1

I assume that the code snippet you've shared is for initializing a logger using Log4j in a Spark environment within Azure Synapse. However, it's important to note that the configuration snippets and links provided refer to Log4j 2.x, which has a different configuration style and capabilities compared to Log4j 1.x (which seems to be what's available in your environment, based on the API in your code snippet). So instead of relying on modifying log4j.properties, I would go for creating a custom appender that formats log messages as JSON, the you add it to your logger. Or simply use Azure services like Azure Event Hubs or Azure Monitor to collect and transform logs. Azure Monitor, for example, can collect logs from various sources, including application logs, and can query and visualize them. You can send your logs to one of these services and then use Azure Monitor to convert or display logs in JSON format.