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STANFORD UNIVERSITY

INFORMATION TECHNOLOGY SERVICES

AFS Connection Statistics

This report lists the number of connections on each of our AFS servers. Blocked connections are clients who are stalled waiting for an AFS server thread. Active connections are connections that were actively serving data or reading from an AFS client at the time of the report. The total connection number (not all that meaningful) is the count of clients that the AFS server is aware of (generally a count of clients that have connected to the server since its last reboot).

There should be no blocked connections. If the blocked connection number ever rises above one, the server is busier than it should be, and this may explain slow performance. (AFS administrators will be automatically paged if the blocked connection count rises too high.)

The active connection count is the best indicator of server busyness relative to other servers if there are no actual problems. We use this metric occasionally to see if the usage of servers is out of balance. Some servers will just always be busier due to the nature of the clients they server.

These statistics are updated once an hour.

Active connections:   1,214
 Total connections: 405,874
    Unique clients:   2,621

Server               Blocked  Active   Total
-------------------- ------- ------- -------
afssvr01                   0      55  18,491
afssvr02                   0      56  32,536
afssvr03                   0     157  20,878
afssvr04                   0       0       8
afssvr10                   0      81  97,338
afssvr11                   0     209  28,922
afssvr12                   0     218  53,452
afssvr13                   0      59  23,652
afssvr14                   0      73  48,605
afssvr15                   0       0      46
afssvr16                   0      98  26,692
afssvr17                   0     208  55,138
afssvr-dev                 0       0       8
afssvr-sec01               0       0      68
afssvr-sec02               0       0      40

Report generated: 2016-07-29 16:42:16 -0700
Last modified Tuesday, 05-Dec-2006 09:11:37 PM

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