himanshug commented on a change in pull request #7765: Fix LookupSerdeModule
double-binding in Coordinator-as-Overlord mode.
URL: https://github.com/apache/incubator-druid/pull/7765#discussion_r288242770
##########
File path: services/src/main/java/org/apache/druid/cli/CliCoordinator.java
##########
@@ -272,10 +272,12 @@ public LoadQueueTaskMaster getLoadQueueTaskMaster(
}
);
- modules.add(new LookupSerdeModule());
-
if (beOverlord) {
modules.addAll(new CliOverlord().getModules(false));
+ } else {
+ // Only add LookupSerdeModule if !beOverlord, since CliOverlord includes
it, and having two copies causes
+ // the injector to get confused due to having multiple bindings for the
same classes.
+ modules.add(new LookupSerdeModule());
Review comment:
that is why `CliOverloard.getModules(boolean standalone)` takes the
standalone flag also, so that we can take care of these things in there if/when
needed.
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