2011/3/23 huang jun <hjwsm1989@xxxxxxxxx>: > hi， > yes，the mds is overloaded. there are four clients in the ceph > cluster，and each of them send a great many of requests to the mds. i > think the standby should become active and share the workload rather > than take over the laggy one in this case. what do you think about？ You can do that by setting the max_mds_num to 2 to see if it will help. :) http://ceph.newdream.net/wiki/MDS_cluster_expansion As a configuration issue, that's not something that the cluster is going to do dynamically, though. Also note that if all your activity is in a single directory then multiple MDSes won't help much yet -- directory fragmentation (which allows splitting a directory across more than one MDS) isn't enabled by default yet but should be in a release or two. -Greg -- 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
