Github user jacques-n commented on a diff in the pull request:
https://github.com/apache/drill/pull/503#discussion_r63294968
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/work/foreman/Foreman.java ---
@@ -115,6 +115,8 @@
private static final ObjectMapper MAPPER = new ObjectMapper();
private static final long RPC_WAIT_IN_MSECS_PER_FRAGMENT = 5000;
+ private Thread myThreadRef; // Thread that is currently executing the
Foreman.
--- End diff --
I think you need either volatile or an atomic reference here since
moveToState can be executed by a thread other than the one running the fragment.
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