Hello. In order to change the size of CAMule log files, you will need to access the wrapper.conf file, which can be found in the following location: C:ConnectALLmulesoftmule-standalone-3.9.0conf.
Once you have located and accessed the file, scroll down to the 'Wrapper Logging Properties' section, and locate the following block of script. Edit the 'wrapper.logfile.maxsize' property to reflect the size that you want and save your changes. An example from the ‘Wrapper Logging Properties’ is displayed below. In the example below, you can see where I have already edited the property in this block to reflect 50MB.
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Maximum size that the log file will be allowed to grow to before
the log is rolled. Size is specified in bytes. The default value
of 0, disables log rolling. May abbreviate with the 'k' (kb) or
'm' (mb) suffix. For example: 10m = 10 megabytes.
wrapper.logfile.maxsize=50m
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After you have entered the desired properties, restart the mule service and retest to see if the log sizes are what you are wanting.