Details
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Sub-task
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Status: Resolved
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Major
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Resolution: Fixed
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None
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None
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Description
When home YarnRM is failing over, FinishApplicationMaster call from AM can have multiple retry threads outstanding in FederationInterceptor. When new YarnRM come back up, all retry threads will re-register to YarnRM. The first one will succeed but the rest will get "Application Master is already registered" exception. We should catch and swallow this exception and move on.