about "cleanup_delay,max_requests"

[郑飞绸]

Hello!
        I run freeradius:
        %./configure --with-thread=no
        %make
        %make install
        run freeradius on thread,not use thread pool. 
        
        radiusd.conf:
                cleanup_delay = 5
                max_requests = 1024

        when number of request from client  is more than max_requests,
        The freeradius start to reject  request from all of the clients
forever.
        I read note of radiusd.conf about cleanup_delay,max_requests.
        Freeradius can clean all of the old request on memary after
cleanup_delay 
        and receive request again.
        Can you tell me why?
                
        freeradius :  freeradius-snapshot-20010729.tar.gz

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