I am trying to set up an active/standby or active/passive SEC pair, and
use context to indicate which side should be active or passive. I am
having a problem with the context check, comparing the string of $1
against %Side, and I am not getting what I would expect.
The exercise creates two questions for me. How do you compare context
variables in a context expession? Is there a simpler more elegant way
to do active/passive pairing, and signal in-band an active/passive
switchover?
Please advise,
Tim Peiffer
oit200959393:examples peiffer$ cat ActiveStandby.cfg
#
# Rule1: Determine whether you are set1 (odd) or set2 (even)
#
#
type=single
desc=Determine Set1 or Set2
ptype=RegExp
pattern=SEC_(STARTUP|RESTART|SOFTRESTART)
context=[ SEC_INTERNAL_EVENT ]
action= \
assign %Side set1 ; \
create ACTIVE_%Side
#
# Rule2: use the context to test whether side is active
#
type=single
ptype=RegExp
pattern=test (\S+) side
desc=side $1 active
context=ACTIVE_%Side && ("$1" eq "%Side);
action=logonly this side %Side is active
#
# Rule3: use the context to test whether side is passive
#
type=single
ptype=RegExp
pattern=test (\S+) side
desc=side $1 passive
context=!ACTIVE_%Side || ("$1" ne "%Side);
action=logonly this side $1 is passive
oit200959393:examples peiffer$ ../sec.pl -conf ./ActiveStandby.cfg
-input=- -log=- -debug=7 -intevents
SEC (Simple Event Correlator) 2.5.3
Sun Nov 7 17:28:43 2010: SEC (Simple Event Correlator) 2.5.3
Reading configuration from ./ActiveStandby.cfg
Sun Nov 7 17:28:43 2010: Reading configuration from ./ActiveStandby.cfg
3 rules loaded from ./ActiveStandby.cfg
Sun Nov 7 17:28:43 2010: 3 rules loaded from ./ActiveStandby.cfg
Stdin connected to terminal, SIGINT can't be used for changing the
logging level
Sun Nov 7 17:28:43 2010: Stdin connected to terminal, SIGINT can't be
used for changing the logging level
Creating SEC internal context 'SEC_INTERNAL_EVENT'
Sun Nov 7 17:28:43 2010: Creating SEC internal context 'SEC_INTERNAL_EVENT'
Creating SEC internal event 'SEC_STARTUP'
Sun Nov 7 17:28:43 2010: Creating SEC internal event 'SEC_STARTUP'
Assigning 'set1' to variable '%Side'
Sun Nov 7 17:28:43 2010: Assigning 'set1' to variable '%Side'
Creating context 'ACTIVE_set1'
Sun Nov 7 17:28:43 2010: Creating context 'ACTIVE_set1'
Deleting SEC internal context 'SEC_INTERNAL_EVENT'
Sun Nov 7 17:28:43 2010: Deleting SEC internal context 'SEC_INTERNAL_EVENT'
test set1 side
this side set1 is passive
Sun Nov 7 17:28:50 2010: this side set1 is passive
test set2 side
this side set2 is passive
Sun Nov 7 17:28:53 2010: this side set2 is passive
--
Tim Peiffer
Network Support Engineer
Office of Information Technology
University of Minnesota/NorthernLights GigaPOP
+1 612 626-7884 (desk)
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