Hi,
What is the best way to deploy Openser in an HA environment? If I want to use ldirector, what is the best solution for determining whether the openser is still alive?
Could someone share with me how it can be done?
Thanks, Mark
mark morreny writes:
What is the best way to deploy Openser in an HA environment?
to this one i don't know the answer. there may not even be a single "best" way, because every proposal i have seen so far have some weaknesses. so the solution may depend on which weaknesses you consider less important.
If I want to use ldirector, what is the best solution for determining whether the openser is still alive?
i send openser sip requests that exercise all of its components. just knowing the host or openser processes are alive, do not much good.
-- juha
Hi Juha, Thank you for your reply. May I ask how to test whether openser is alive? Specifically, what tool do you use? If you are also using ldirector, is it possible to share with me your ldirecor.cf configuration? I am having a bit of difficulty getting it to work.
Thanks alot for all your help.
Mark
On Sat, Jun 14, 2008 at 4:03 PM, Juha Heinanen jh@tutpro.com wrote:
mark morreny writes:
What is the best way to deploy Openser in an HA environment?
to this one i don't know the answer. there may not even be a single "best" way, because every proposal i have seen so far have some weaknesses. so the solution may depend on which weaknesses you consider less important.
If I want to use ldirector, what is the best solution for determining whether the openser is still alive?
i send openser sip requests that exercise all of its components. just knowing the host or openser processes are alive, do not much good.
-- juha
mark morreny writes:
Thank you for your reply. May I ask how to test whether openser is alive? Specifically, what tool do you use?
i use sipsak. latest monit beta is also capable of testing openser using sip (at least in a simple way).
If you are also using ldirector, is it possible to share with me your ldirecor.cf configuration? I am having a bit of difficulty getting it to work.
i don't use ldirector and don't even know what it is, but if it is a load balancer that you want to front end your opensers with, then you have to make sure that it itself is not a single point of failure.
and if your loadbalancer routes sip requests rather that ip requests, then you need to monitor the loadbalancer using sip requests. checking that loadbalancer answers to pings or that the loadbalancer process is alive is not enough.
now i guess you start to see how complicated things really get.
-- juha
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jh＠tutpro.com -
mark morreny