Date: Sun, 23 Apr 2017 02:42:31 +0000 From: Stefan Sedich <stefan.sedich@...il.com> To: musl@...ts.openwall.com Subject: Re: Re: [PATCH v2] attempts option not being respected in resolv.conf Thanks Rich, I will mull over this and play around with glibc a bit more to see if I can come up with something that gives us that ideal middle ground, I do agree with your initial idea though it sounds like it could behave a little bit closer to glibc but I will dig more and see. Stefan On Sat, Apr 22, 2017 at 3:32 PM Rich Felker <dalias@...c.org> wrote: > On Tue, Apr 04, 2017 at 02:08:08AM +0000, Stefan Sedich wrote: > > One thing I have found though is that the way the retry logic works if I > > want to retry ever 1 second for a total of 5 times I need to set it to > > 'options timeout:5 attempts:5', not sure if someone who knows this area > > well can comment but it appears to create a retry_interval based on > > timeout/attempts, which as far as I understand it is different to how it > > works with glibc where I can set timeout:1 attempts:5 and it does as I > > expect. > > The man page documents timeout as "amount of time the resolver will > wait for a response from a remote name server before retrying the > query via a different name server". Since musl does not cycle through > servers, but tries them all concurrently, this definition does not > make sense, so we have to find a reasonable way to interpret the > options, but I agree it might be "wrong" right now. It might be that, > rather than retry_interval being timeout/attempts, retry_interval > should be timeout, and the total timeout should be timeout*attempts. > We really should look at the glibc behavior and see how it scales with > different settings and numbers of nameservers and try to make the > behavior somehow comparable. > > BTW sorry I missed your V2. > > Rich > Content of type "text/html" skipped
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