ableegoldman commented on a change in pull request #10342:
URL: https://github.com/apache/kafka/pull/10342#discussion_r596443720



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File path: 
streams/src/main/java/org/apache/kafka/streams/processor/internals/ProcessorStateManager.java
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@@ -186,7 +186,7 @@ public ProcessorStateManager(final TaskId taskId,
         this.changelogReader = changelogReader;
         this.sourcePartitions = sourcePartitions;
 
-        this.baseDir = stateDirectory.directoryForTask(taskId);
+        this.baseDir = stateDirectory.getOrCreateDirectoryForTask(taskId);

Review comment:
       Note: the only logical changes are in `StateDirectory` and 
`StateDirectoryTest`, the rest of the files were just touched by renaming this 
method to include the `getOrCreate` prefix, since this is otherwise pretty 
opaque.
   There are also some non-renaming changes in StateManagerUtil and TaskManager 
that just involve removing the try-catch logic for the no longer throwable 
IOException




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