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1. Perform writes in a separate thread (use dedicated thread or ForkJoinPool.commonPool)
   • Pros: no dependencies
   • Cons: more manual thread management - hard to get right and fast
2. AsynchronousSocketChannel
   • Cons: SSL is very hard, making this approach not an option. See README: https://github.com/raell2/SSLAsynchronousSocketChannel
3. Netty
   • Pros:
     • Greatly reduces complexity - returns ChannelFuture, which can be easily converted to IgniteClientFuture. Manual thread management goes away.
     • We can share one EventLoopGroop across all TcpClientChannel instances within ReliableChannel and reduce resource usage when partition awareness is enabled
     • Proven performance
   • Cons:
     • New dependency in core module

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