franz1981 commented on issue #2845: ARTEMIS-2336 Use zero copy to replicate 
journal/page/large message file (AGAIN)
URL: https://github.com/apache/activemq-artemis/pull/2845#issuecomment-541386793
 
 
   @wy96f I'll look better into this on my back, but please take a look 
yourself if you have any idea.
   From what I've understood we can:
   - fix 
https://github.com/netty/netty/blob/ff7a9fa091a8bf2e10020f83fc4df1c44098bbbb/transport/src/main/java/io/netty/channel/DefaultMessageSizeEstimator.java#L45
 in order to account for chunked files correctly and flow control them while 
being enqueued into chunk writer 
   - change how sync done timeout is being calculated and consider the total 
time to replicate (from the first file region/chunk sent) instead of the time 
from when the sync done is being enqueued in Netty 
   
   wdyt?

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