Subject: bin/13657: rpcbind uses lots of file descriptors compared to portmap
To: None <gnats-bugs@gnats.netbsd.org>
From: Chuck Cranor <chuck@xxx.research.att.com>
List: netbsd-bugs
Date: 08/08/2001 16:48:38
>Number: 13657
>Category: bin
>Synopsis: rpcbind uses lots of file descriptors compared to portmap
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: bin-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed Aug 08 13:45:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Chuck Cranor
>Release: 1.5.1
>Organization:
AT&T Labs-Research
>Environment:
i386, etc.
>Description:
rpcbind uses lots of stream connections, where as portmap does not.
lukem asked me to send-pr this.
he says that it appears that for each service that registers
that there's at least 3 FDs opened, and maybe more if ipv6 is
used as well.
how scaleable is rpcbind as compared to portmap?
>How-To-Repeat:
fstat | grep rpcbind | wc -l
netstat | grep /var/run/rpcbind.sock
(compare to a portmap system which has only two network sockets)
rpcbind:
root rpcbind 121 wd / 2 drwxr-xr-x 512 r
root rpcbind 121 0 / 11152 crw-rw-rw- null rw
root rpcbind 121 1 / 11152 crw-rw-rw- null rw
root rpcbind 121 2 / 11152 crw-rw-rw- null rw
root rpcbind 121 3* internet6 dgram udp c0ddd000 *:0
root rpcbind 121 4* unix stream c0dfa100
root rpcbind 121 5* internet6 dgram udp c0e33e00 *:111
root rpcbind 121 6* internet6 dgram udp c0e33700 *:601
root rpcbind 121 7* internet6 stream tcp c0e59000 *:111
root rpcbind 121 8* internet dgram udp c0e32000 *:111
root rpcbind 121 9* internet dgram udp c0e32060 *:1022
root rpcbind 121 10* internet stream tcp c0e590b0 *:111
root rpcbind 121 11* unix stream c0dfa640 <-> c0dfa700
root rpcbind 121 12* unix stream c0dfa3c0 <-> c0dfa0c0
root rpcbind 121 13* unix stream c0e5c880 <-> c0e5c8c0
root rpcbind 121 14* unix stream c0e5c580 <-> c0e5c840
root rpcbind 121 15* unix stream c0e5c980 <-> c0e5c9c0
root rpcbind 121 16* unix stream c0e5c780 <-> c0e5c940
root rpcbind 121 17* unix stream c0e5c540 <-> c0e5c7c0
root rpcbind 121 18* unix stream c0e5c4c0 <-> c0e5c500
portmap:
root portmap 156 wd / 2 drwxr-xr-x 1024 r
root portmap 156 0 / 11725 crw-rw-rw- null rw
root portmap 156 1 / 11725 crw-rw-rw- null rw
root portmap 156 2 / 11725 crw-rw-rw- null rw
root portmap 156 3* internet dgram udp c0c7805c *:111
root portmap 156 4* internet stream tcp c0c80000 *:111
>Fix:
lukem is digging into the rpc code...
>Release-Note:
>Audit-Trail:
>Unformatted: