Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Sotty, guys, but is it really necesary to use a clustered file system for a primary-primary drbd with mysql? Does it really need a locking system? About using or not an active-active cluster, it depends on the needs (high availability, load balancing) but both solutions work perfectly, as mysql recommends drbd and explains how to use it with mysql clusters. And it would be nice having separated NICs for LAN and DRBD: http://dev.mysql.com/doc/refman/5.0/en/ha-drbd-performance.html#ha-drbd-performance-sepinterface You can use /etc/hosts to point other node's secondary nic via hostname: 10.10.10.11 node1 10.10.10.12 node2 10.10.20.1 drbd1 10.10.20.2 drbd2 On Sun, Apr 24, 2011 at 08:06, William Kern <wkern at pixelgate.net> wrote: > On 4/23/11 9:59 PM, Patrick Egloff wrote: >> >> I got several pm urging me NOT to use active/active and OCFS2. >> > Hi, what were the stated reasons to avoid active/active OCFS2? > Did they prefer GFS2 or just not like active/active? > > We have a few active/active clusters running OCFS2 and have not encountered > many problems outside issues with folders with tens of thousands of small > files. > > For larger files such as VMs, we see few issues. Please note that the > active/active clusers in question tend to have most of the writes occuring > on the A side and we do reads and maintenance on the B side, so perhaps our > setup is more of an Active/Passsive (R/W mode). > > That being said. Active/Active with OCFS2 works very well and we are quite > comfortable with it. > > It should also be said that Active/Passsive (not mounted) has much better > performance, irregardless of the file system used. > >> >> One more question. I have 2 ethernet ports. eth1 is used to link both >> boxes together. >> Should i use for DRBD + Heartbeat a different IP address and class than on >> eth0 which is on the LAN ? >> > > We do that so that its easier to know what network you are looking at when > ssh'ed on the box. > > -bill > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user >