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https://issues.apache.org/jira/browse/DIRMINA-1123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17084271#comment-17084271
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Jonathan Valliere edited comment on DIRMINA-1123 at 4/15/20, 5:40 PM:
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You cannot set the buffer sizes BEFORE accept() is called because
http://man7.org/linux/man-pages/man2/accept.2.html the socket does not exist
until accept() is called and the new file descriptor is returned. As you
stated, this is AFTER the initial handshake is done.
https://stackoverflow.com/a/60710684/6686490 I could set the options on the
server-socket regardless but it won't fix your problem unless the underlying OS
supports inheritance.
Edit: better link to the answer
was (Author: johnnyv):
You cannot set the buffer sizes BEFORE accept() is called because
http://man7.org/linux/man-pages/man2/accept.2.html the socket does not exist
until accept() is called and the new file descriptor is returned As you
stated, this is AFTER the initial handshake is done.
https://stackoverflow.com/questions/5968132/are-socket-options-inherited-across-accept-from-the-listening-socket
I could set the options on the server-socket regardless but it won't fix your
problem unless the underlying OS supports inheritance.
> Receive buffer size is never set for NIO acceptor
> -------------------------------------------------
>
> Key: DIRMINA-1123
> URL: https://issues.apache.org/jira/browse/DIRMINA-1123
> Project: MINA
> Issue Type: Bug
> Components: Transport
> Affects Versions: 2.0.22, 2.1.3
> Reporter: Marcin L
> Assignee: Jonathan Valliere
> Priority: Minor
> Attachments: case dumps.png, case1.pcap, case2.pcap, case3.pcap
>
>
> Acceptor window size can't be increased beyond OS defaults.
> It seems the receive buffer size is properly set for
> org.apache.mina.transport.socket.nio.NioSocketConnector, but it is not set at
> all for org.apache.mina.transport.socket.nio.NioSocketAcceptor before socket
> is bound.
> org.apache.mina.core.polling.AbstractPollingIoAcceptor.Acceptor#registerHandles
> comment states that receive buffer size should be initialised, but then
> org.apache.mina.transport.socket.nio.NioSocketAcceptor#open does not do it.,
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