runzhiwang edited a comment on pull request #296: URL: https://github.com/apache/incubator-ratis/pull/296#issuecomment-732968122
transferTo can avoid reading data to user space, it transfer data between kernel space and socket/disk. 1. But we still need to calculate checksum, so client still need read data to user space. 2. Besides, if we use transferTo, client transfer data to three nodes in parallel maybe best, otherwise if we use client -> primary -> peer, primary must wait finish write 128MB block, and then transfer the whole block file to follower, it maybe slow, but if client transfer data to three nodes in parallel, "the client has a higher network bandwidth requirement and it cannot optimise the network traffic". So not sure whether can use transferTo in ozone. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
