lordcheng10 commented on PR #3062:
URL: https://github.com/apache/bookkeeper/pull/3062#issuecomment-1378153641

   > 1. read request doesn't wait for the completion on that threadpool.
   > 
   > > When cold data is read, it will take a long time. At this time, the read 
request will be blocked, resulting in the write timeout.
   > 
   > Can I see a test reproing this? i suspect the problem is somewhere else.
   > 
   > 2. The ordering there is required for a reason.
   > 
   > The test in this PR simply does not cover anything related to actual 
functionality. I suggest trying to enable the feature by default and running 
all tests to see what breaks, it's hard to come up with something more specific 
off the top of my head.
   > 
   > 3. Do you have apples-to-apples comparison of performance, same load, same 
bookies etc, the feature off/on?
   
   For ledgers in the Writable state, reading and writing share the same thread 
pool, and there is no way to isolate reading and writing;
   IMO, it is useful to isolate reads and writes to different threads of 
execution


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