Hi,
I have found an issue where the "Retries" clause is ignored when using
UseStatusServerForFailureDetect with "AuthBy LOADBALANCE".
In a scenario where a downstream proxy becomes unresponsive requests enter a
re-transmit loop until the next Status-Server keepalive detects the host has
failed and only then requests are ignored.
To replicate use the following config:
<Realm DEFAULT>
<AuthBy LOADBALANCE>
Retries 3
RetryTimeout 1
UseStatusServerForFailureDetect
KeealiveTimeout 300
NoreplyTimeout 1
<Host localhost>
AuthPort 1822
AcctPort 1823
</Host>
</AuthBy>
</Realm>
A single Access-Request is re-transmitted 300 ( KeepaliveTimeout/RetryTimeout )
times instead of 3. Once the request is eventually ignored the following can be
seen in the logs:
Fri May 10 01:19:33 2013: INFO: AuthRADIUS : Could not find a working host to
forward a (76) after 301 seconds. Ignoring
Fri May 10 01:19:33 2013: INFO: AuthRADIUS : No reply after 301 seconds and 3
retransmissions to 127.0.0.1:1822 for a (227)
When using the same config with "AuthBy RADIUS" the behavior is as expected and
the request is re-transmitted only three times then ignored:
Fri May 10 01:08:41 2013: INFO: AuthRADIUS : Could not find a working host to
forward a (1) after 4 seconds. Ignoring
Fri May 10 01:08:41 2013: INFO: AuthRADIUS : No reply after 4 seconds and 3
retransmissions to 127.0.0.1:1822 for a (129)
Thanks.
--
todor
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