rustyrazorblade commented on code in PR #4255:
URL: https://github.com/apache/cassandra/pull/4255#discussion_r2311341193


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src/java/org/apache/cassandra/profiler/AsyncProfilerMBean.java:
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@@ -0,0 +1,8 @@
+package org.apache.cassandra.profiler;
+
+public interface AsyncProfilerMBean {
+    void start(String event, String outputFormat);
+    void stop(String outputFile);

Review Comment:
   I think it would be better to keep outputFile and not allow the user to pick 
arbitrary directories.  I have profiling built into easy-cass-lab using 
timestamps, and I end up losing track of which one correlated to what.  I 
regret having built it that way.  
   
   Without a custom filename, the artifacts quickly become meaningless.



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