Meaning of zero queue size in a Freeradius prod environment
Hello! I would like to develop a Nagios check for Freeradius which periodically checks the queue. My idea it to use radclient with statistics type 16 (or similar) and grep out the useful informations. I queried our prod server which handles about 3000-5000 requests in a minute and got a result that the queue is zero: [root@radius1 sites-enabled]# echo "Message-Authenticator = 0x00, FreeRADIUS-Statistics-Type = 16, Response-Packet-Type = Access-Accept" | radclient -x localhost:18121 status <somethingpass> Sent Status-Server Id 230 from 0.0.0.0:37413 to 127.0.0.1:18121 length 50 Message-Authenticator = 0x00 FreeRADIUS-Statistics-Type = Internal Response-Packet-Type = Access-Accept Received Access-Accept Id 230 from 127.0.0.1:18121 to 0.0.0.0:0 length 128 FreeRADIUS-Stats-Start-Time = "Feb 4 2019 08:33:06 CET" FreeRADIUS-Stats-HUP-Time = "Feb 4 2019 08:33:06 CET" FreeRADIUS-Queue-Len-Internal = 0 FreeRADIUS-Queue-Len-Proxy = 0 FreeRADIUS-Queue-Len-Auth = 0 FreeRADIUS-Queue-Len-Acct = 0 FreeRADIUS-Queue-Len-Detail = 0 FreeRADIUS-Queue-PPS-In = 0 FreeRADIUS-Queue-PPS-Out = 0 I am asking just for the sure understanding. Does Freeradius show me zero values regardless of the load because the operation of the program is so quick and all the requests are handled less than a second so it is hard to catch a queue value different than 0? - Tamas Fekete
On Feb 4, 2019, at 3:34 AM, Fekete Tamás <fektom@gmail.com> wrote:
I am asking just for the sure understanding. Does Freeradius show me zero values regardless of the load because the operation of the program is so quick and all the requests are handled less than a second so it is hard to catch a queue value different than 0?
Yes. If there's something blocking the server, the queue size will be non-zero. Alan DeKok.
If there's something blocking the server, the queue size will be non-zero.
Thank you! Alan DeKok <aland@deployingradius.com> ezt írta (időpont: 2019. febr. 4., H, 12:57):
On Feb 4, 2019, at 3:34 AM, Fekete Tamás <fektom@gmail.com> wrote:
I am asking just for the sure understanding. Does Freeradius show me zero values regardless of the load because the operation of the program is so quick and all the requests are handled less than a second so it is hard to catch a queue value different than 0?
Yes.
If there's something blocking the server, the queue size will be non-zero.
Alan DeKok.
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Fekete Tamás