Github user paul-rogers commented on a diff in the pull request:
https://github.com/apache/drill/pull/574#discussion_r80542988
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/FunctionImplementationRegistry.java
---
@@ -179,14 +190,15 @@ public DrillFuncHolder
findExactMatchingDrillFunction(String name, List<MajorTyp
}
private DrillFuncHolder findExactMatchingDrillFunction(String name,
List<MajorType> argTypes, MajorType returnType, boolean retry) {
- for (DrillFuncHolder h : drillFuncRegistry.getMethods(name)) {
+ AtomicLong version = new AtomicLong();
--- End diff --
Not entirely clear how the version works. We create it here and intialze it
to 0. Then in loadRemoteFunctions( ), we compare the local version (always 0)
to the registry version (which will be zero only until, presumably, the first
load.) Are we missing an initialization here to the current registry version?
Else, please explain how this works.
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