Dedupe tasks on LeaderDoAssignment#906
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shrinandthakkar merged 3 commits intolinkedin:masterfrom Jun 6, 2022
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datastream-server/src/main/java/com/linkedin/datastream/server/zk/ZkAdapter.java
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...am-server/src/main/java/com/linkedin/datastream/server/assignment/LoadbalancingStrategy.java
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...stream-server/src/main/java/com/linkedin/datastream/server/assignment/BroadcastStrategy.java
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...stream-server/src/main/java/com/linkedin/datastream/server/assignment/BroadcastStrategy.java
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Fixes crashing during
LeaderDoAssignmentby deduplicating tasks that contain the same task name.This can happen if a leader change happens while saving an existing assignment change is already in progress.
If we reach this case, select one of the tasks as valid and remove the others.