azagrebin commented on issue #6777: [FLINK-10461] [State Backends, Checkpointing] Speed up download files when restore from DFS URL: https://github.com/apache/flink/pull/6777#issuecomment-443193074 In general, I do not see any problem in having multiple threads, downloading even the same data. If your question is whether they can interfere with each other locally, the target directories are randomised so they should download to different locations, even if at the same time. Eventually, it is the JM job that only one of them will be used.
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