FrankChen021 commented on PR #13286:
URL: https://github.com/apache/druid/pull/13286#issuecomment-1296085414
Thanks for the fix.
From the assignment statement, I don't understand how could `identifier` be
null?
```java
identifier = (userDims.get("task") == null ? metricEvent.getHost() :
(String) userDims.get("task"));
```
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