There are instructions given /etc/cassandra/logback.xml <!-- In order to disable debug.log, comment-out the ASYNCDEBUGLOG appender reference in the root level section below. -->
Looking later in the file, you'll see the following: <!-- ASYNCLOG assynchronous appender to debug.log (all levels) --> <appender name="ASYNCDEBUGLOG" class="ch.qos.logback.classic.AsyncAppender"> <queueSize>1024</queueSize> <discardingThreshold>0</discardingThreshold> <includeCallerData>true</includeCallerData> <appender-ref ref="DEBUGLOG" /> </appender> Commenting out this section will disable writing to debug.log. -- Michael Mior mm...@uwaterloo.ca 2016-03-01 10:43 GMT-05:00 Rakesh Kumar <dcrunch...@aim.com>: > Version: Cassandra 3.3 > > Can anyone tell on how to disable writing to debug.log. > > thanks. >