xvrl commented on a change in pull request #12096:
URL: https://github.com/apache/druid/pull/12096#discussion_r779972037
##########
File path:
indexing-service/src/main/java/org/apache/druid/indexing/overlord/ZkWorker.java
##########
@@ -63,6 +67,25 @@ public ZkWorker(Worker worker, PathChildrenCache
statusCache, final ObjectMapper
this.statusCache = statusCache;
this.cacheConverter = (ChildData input) ->
JacksonUtils.readValue(jsonMapper, input.getData(),
TaskAnnouncement.class);
+ this.taskIdExtractor = createTaskIdExtractor(jsonMapper);
+ }
+
+ static java.util.function.Function<ChildData, String>
createTaskIdExtractor(final ObjectMapper jsonMapper)
+ {
+ return (ChildData input) -> {
+ try (JsonParser parser =
jsonMapper.getFactory().createParser(input.getData())) {
+ while (parser.nextToken() != JsonToken.END_OBJECT) {
Review comment:
I don't think we offer any ordering guarantees today in the
serialization, so this could break without warning
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