Date: Tue, 14 Sep 2021 14:21:37 -0700 From: John-Mark Gurney <jmg@funkthat.com> To: Johannes Totz <jo@bruelltuete.com> Cc: freebsd-geom@FreeBSD.org Subject: Re: RFC reviews for ggate and hastd Message-ID: <20210914212137.GI5928@funkthat.com> In-Reply-To: <31ac6be7-e438-00d0-b63a-b27b09ed5d58@bruelltuete.com> References: <cabccb59-44eb-5468-2c8c-6e6a6461f6db@bruelltuete.com> <20210909223355.GE5928@funkthat.com> <31ac6be7-e438-00d0-b63a-b27b09ed5d58@bruelltuete.com>
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Johannes Totz wrote this message on Mon, Sep 13, 2021 at 02:00 +0100: > On 09/09/2021 23:33, John-Mark Gurney wrote: > > Johannes Totz via freebsd-geom wrote this message on Thu, Sep 02, 2021 at 21:55 +0100: > >> (looks like gmane swallowed my 1st message, trying again) > >> > >> Hey folks, > >> > >> any ggate or hastd users here? I've got some code reviews for you. > >> Please take a look if you get a chance: > >> > >> https://reviews.freebsd.org/D31727 > >> Fix potential out-of-bounds read in the geom-gate kernel module. > >> > >> https://reviews.freebsd.org/D31722 > >> Dynamically alloc buffers in ggatec, instead of assuming a fixed size on > >> the stack. > >> > >> https://reviews.freebsd.org/D31709 > >> Simple rc script to start ggated. > > > > I'll try to look at them. > > > > I've broken out the ggate code to: https://www.funkthat.com/gitea/jmg/ggate > > Nice, thanks! > > I noticed the http branch. One weekend toy project idea I wanted to get > around to was to write a ggated impl that talks to Backblaze. I looked at the Backblaze B2 API, and I don't see a way to do partial updates of a file. All the API that I see require you to upload the entire file, so I don't think that it'll work. I abanded http as a solution, because of issues w/ WebDAV and partial updates and the IETF not being very sane about it: https://blog.sphere.chronosempire.org.uk/2012/11/21/webdav-and-the-http-patch-nightmare Also, the fact that apache would randomly truncate a file didn't help either... > > and have a number of fixes in that tree, one of them being having the > > server (ggated) be multi-threaded, to improve IOPs. Another is dropping > > the setting of tcp buffer sizes to allow the dynamic buffer sizing code > > to work, allowing it to grow larger than 128kB for better perf on high > > latency links.. > > > > In another branch, I have a version that runs the client over ssh using > > sftp (requires a modified sftp-server for best performance, and security) > > allowing for better security.. > > > > The ssh branch does have an rc.d script for that. I'll look at which one > > should be used, and adapting the man page that I've written for that one > > as well. > > > > Thanks for the help/work! -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."
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