mwashburn2 commented on PR #2697:
URL: https://github.com/apache/activemq/pull/2697#issuecomment-6267536371

   > LGTM, thanks @mwashburn2!
   > 
   > Making `socketBufferSize=0` an explicit "let the OS auto-tune" option is 
useful, and the change keeps existing behavior for all other values.
   > 
   > A few minor points (non blocking):
   > 
   > * `testPositiveSetsBufferWithoutLogging`: asserting `> 0` doesn't really 
check anything, since an untouched socket already reports positive sizes. Could 
you assert `>= 128 * 1024` instead? Linux doubles the value, so that bound is 
still safe there.
   > * Log level for negative values: I would keep it at WARN rather than 
ERROR. The setting is ignored and the broker keeps working, and this is logged 
on every connection, so ERROR could trigger log alerts.
   > * Missing newline (nit): please add a trailing newline to the end of the 
test file.
   > 
   > While reviewing I also found some existing issues in `initialiseSocket`. 
They are not related to this PR, so we can open separate issues for them:
   > 
   > * the `socket.*` options are applied to the `socket` field instead of the 
`sock` parameter.
   > * the 64KB `socketBufferSize` default overwrites any 
`socket.receiveBufferSize` / `socket.sendBufferSize` set in the URI.
   > * buffers are set after `connect()`, which is too late for sizes above 
64KB to enlarge the TCP window.
   
   Addressed the minor points. Since I'm here I I'll open a PR for the other 
issues. 


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