> On May 13, 2017, at May 13, 10:59 PM, Jiafan Zhou <[email protected]> > wrote: > > > Hi all, > > The version of haproxy I use is: > > # haproxy -version > HA-Proxy version 1.5.2 2014/07/12 > Copyright 2000-2014 Willy Tarreau <[email protected]> <mailto:[email protected]>
This version is so old. I’m sure there must be hundreds of bugs fixed over the last 3 years. Why not use a properly current version? > I have a question regarding the Health Check. In the documentation of > haproxy, it mentions the below for the "timeout check" and "inter": > > Now I am wondering here which one and what value will be used for healthcheck > interval. Is it "timeout check" as 10 seconds, or the "inter" as the default > 2 seconds? > > Why not just set the health check values that you care about and not worry about guessing what they’ll end up being when only some are set and some are using defaults? If you need / expect them to be a particular value for proper system operation, I’d set them no matter what the defaults may be declared to be. > Another question, since I defined the "retries" to be 3, in the case of > server connection failure, will it reconnect 3 times? Or does it use the > "fall" parameter (which defaults to 3 here as well) instead for healthcheck > retry? > > “retries” is for dispatching requests and is not used for health checks. > So in this configuration, in the case of server failure, does it wait for up > to 30 seconds (3 fall or retries), then 20 seconds (2 rise), before the > server is considered operational? (in total 50 seconds) > > retries are not considered, only health check specific settings like “fail”, “inter" > Thanks, > > Jiafan >
