drbd-kernel-8.0.16 failed to compile

matt2kjones · Tux's lil' helper Joined: 03 Mar 2004 Posts: 89

Hello,

Trying to install drbd on one of the high availability clusters in work and it fails to compile on every node (which have identical hardware, kernels and packages).

here are the various logs:

erik258 · Posted: Tue May 18, 2010 3:26 pm Post subject:

According to http://packages.gentoo.org/package/sys-cluster/drbd-kernel the newest verion, 8.3.6, has been patched to support 2.6.32. You might want to try ~arch for this package.

If you don't mind me asking, what is the relationship between the in-kernel drdb drivers (which as I recall are a recent addition, as of 2.6.33 or so ), sys-cluster/drbd-kernel, and sys-cluster/drbd packages? I'm almost wondering whether drbd-kernel is a kernel module package, in which case you might want to try the new in-kernel driver instead. I can't really recommend that though, because, as I said, I don't understand how the 2 packages and the kernel come together.

Incidentally, ever hear of glusterfs? It's somewhat like drbd but happens at the filesystem level, outside of the kernel. It might be practical for your purposes ( HPA filestorage) and it might not (mysql High Availability / quick Disaster Recovery). One of the nice things about gluster is that it allows multiple writes at once, can be distributed as well as replicated, and like I said runs atop a POSIX+xattr filesystem (so you don't need gluster itself to access the data, only cluster it). One of the lame things about gluster is its not super fast (although it purports to be, so maybe that's a personal problem) and still seems a little beta-ey.

Well, hope it helps! Good luck!
_________________
Configuring a Firewall? Try my iptables configuration
LinuxCommando.com is my blog for linux-related scraps and tidbits. Stop by for a visit!

matt2kjones · Tux's lil' helper Joined: 03 Mar 2004 Posts: 89

Hello,

Thank you for your reply, GlusterFS looks interesting.

In regards to DRBD. Yes, I did notice that support for DRBD is now mainline from 2.6.33, the only reason i went for the kernel module approach is because 2.6.33 hasn't hit gentoo-sources yet for my profile. From what i can tell on the drbd site this would be a better solution really, since every time a new kernel is implemented on the servers, there would be no need to compile the matching drbd kernel module from portage.

Whoops:

Just tried emerge drbd --nodeps and it died compiling when it went into /usr/src/linux. I guess i am going to have to download the newest kernel straight from kernel.org and see if it can compile against the sources for that.

// Edit ... Scrap that, it dying when compiling against the kernel headers:

erik258 · Posted: Wed May 19, 2010 6:56 pm Post subject:

Cool, that helps me understand what's going on here. So drbd-kernel is just an out-of-tree kernel module.

Personally I hardly ever use gentoo-sources anymore, because they're just too out of date. gentoo-sources would give me 2.6.32-r7 whereas I'm already running 2.6.33.3 - not that it usually makes a huge difference, but there's some really cool developments going on in the kernel these days and I'm tired of waiting to check it out. Besides, keeping up with kernel goings-on in kernel.org - especially the changelogs - is fascinating.

Good luck!
_________________
Configuring a Firewall? Try my iptables configuration
LinuxCommando.com is my blog for linux-related scraps and tidbits. Stop by for a visit!