[GitHub] [spark] AngersZhuuuu commented on issue #27419: [WIP][SPARK-30694][SHUFFLE]If exception occured while fetching blocks by ExternalBlockClient, fail early when External Shuffle Service is not alive

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AngersZhuuuu commented on issue #27419: [WIP][SPARK-30694][SHUFFLE]If exception occured while fetching blocks by ExternalBlockClient, fail early when External Shuffle Service is not alive
URL: https://github.com/apache/spark/pull/27419#issuecomment-602015661
 
 
   > If you skip retry, how can you know it's not transient network problem?
   
   Yea,  hard to choose，how about add a manager of External Shuffle Service  and check service with heart beat, then when this error happen, ask for this manager? but keep this manager always alive is a big problem. 
   
   
   
   
   

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