buptljy edited a comment on issue #8125: [FLINK-10205] Batch Job: InputSplit Fault tolerant for DataSourceTask URL: https://github.com/apache/flink/pull/8125#issuecomment-556927189 @Ryantaocer @StefanRRichter Sorry for bring this out again. Currently I'm doing something about scheduler and I'm curious why we need to `synchronized` splits here? Since we have only two ways to modify the `splits`, one is the RPC call from `Task` and the other is the failover strategy, but do we allow users to modify this in threads except for `jobMasterMainThread`? Because I thought the operations should be single-threaded.
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