asdf2014 commented on code in PR #16524:
URL: https://github.com/apache/druid/pull/16524#discussion_r1627360761
##########
processing/src/main/java/org/apache/druid/frame/processor/Bouncer.java:
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@@ -32,18 +32,45 @@
/**
* Limiter for access to some resource.
- *
- * Used by {@link FrameProcessorExecutor#runAllFully} to limit the number of
outstanding processors.
+ * <p>
+ * The class performs the work of a "bouncer", limiting the number of threads
that can concurrently access the guarded
+ * critical sections by the bouncer. The bouncer is initialized with the max
number of threads that can enter the
+ * gaurded section(s) at a time.
Review Comment:
```suggestion
* guarded section(s) at a time.
```
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