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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:   1,389
 Total connections: 174,576
    Unique clients:   2,626

Server               Blocked  Active   Total
-------------------- ------- ------- -------
afssvr01                   0      86   7,098
afssvr02                   0      73 112,197
afssvr03                   0      77   6,493
afssvr04                   0       0     118
afssvr10                   0     284   7,717
afssvr11                   0      56   3,637
afssvr12                   0      86   5,633
afssvr13                   0      41   3,403
afssvr14                   0       6     152
afssvr15                   0     246   6,884
afssvr16                   0     215  10,377
afssvr17                   0     219  10,799
afssvr-dev                 0       0       6
afssvr-sec01               0       0      50
afssvr-sec02               0       0      12

Report generated: 2017-05-22 17:35:36 -0700
Last modified Tuesday, 05-Dec-2006 09:11:37 PM

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