zhreshold commented on issue #11872: "socket.error: [Errno 111] Connection refused" while training with multiple workers URL: https://github.com/apache/incubator-mxnet/issues/11872#issuecomment-408510384 I have figured out that the pre-fetch strategy for data loader is too aggressive which might cause the related issue with shared mem. The fix is included in https://github.com/apache/incubator-mxnet/pull/11908
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