[lvs-users] Ldirector Timeouts
bhilkert at vt.edu
Mon Jan 19 14:32:11 GMT 2009
We have 15 sites in Ldirector which we use for website failover, not balancing. Right now, all of our sites are using the Negotiate check where it checks for a keyword on a page. The "check" page is setup to test database connections and several other session variables to ensure the site is operational.
We have other services that monitor our sites externally and sometimes when loading the "check" page, it could take 60-90 seconds depending on the current activity on the database.
In Ldirector, the "checkinterval" variable describes how often the site should be checked. There's also a "negotiatetimeout" which seems to describe the time between checks.
My question is twofold:
1) Does the "checkinterval" define time between checks for each site (domain.com will be checked every interval), or does it define the time between checks of all the sites in the list (domain.com will be checked every interval x # of sites in the list)?
2) If "checkinterval" is the time between the checking of a each site, what if the negotiatetimeout is higher then the checkinterval, if it takes 90 secs on the negotiate, and the check is set every 10, will it put up 9 requests in the time that only one will respond?
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