On Wed, 27 Jul 2011, S?awomir Skowron wrote: > Hello. I have some questions. > > 1. Is there any chance to change default 4MB object size to for > example 1MB or less ?? Yeah. You can use the cephfs to set the default layout on the root directory, which will apply to any new files. See 'man cephfs'. > 2. I have create cluster of two mons, and 32 osd (1TB each) on two > machines. At this radosgw with apache2 for test. When i putting data > from s3 client to rados, everything is ok, but when one of osd is > going down all s3 clients going to be freeze for some seconds, before > ceph sign this osd as down, and then everything is starting working > again wit degraded osd. How can i tune this marking as a down for ms > or 0 :) and not for seconds freeze ?? The 'osd heartbeat grace' defualt is 20. Stick something like osd heartbeat grace = 5 in the [osd] section of your ceph.conf. sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
