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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