Re: [Gluster-users] Glusterfs upgrade to 3.5 without downtime
Hi, - Original Message - From: Marco Marino marino@gmail.com To: gluster-users@gluster.org Sent: Monday, January 19, 2015 2:04:53 PM Subject: [Gluster-users] Glusterfs upgrade to 3.5 without downtime Hi. I'm using glusterfs (replica 2) as a storage backend for openstack vm instances (ephemeral disks). Each compute node mounts glusterfs in /mnt/instances but i need to upgrade glusterfs from 3.4 to 3.5 ( http://www.gluster.org/community/documentation/index.php/Upgrade_to_3.5 ). This guide tells me that a downtime is required, but in my case downtime means: 1) shutoff all vm instances 2) umount glusterfs from all compute nodes 3) upgrade glusterfs 4) mount glusterfs from all compute nodes 5) restart all vm instances Is there a solution without downtime (also using replication 2 factor)? I do not want to shut off all instances It is possible to do without downtime (Since you are upgrading from 3.4 to 3.5 it should not be very difficult.) but, you have to be extremely careful. Downtime is suggested because it is very easy to get into an unusable state, unless you are very careful. Here is how you can do the upgrades: On one of the nodes in the replica pair `pkill gluster' ... ensure none of the gluster* processes are running. Upgrade that node to 3.5 and `service glusterd start', ensure that all the processes are up. Then heal the volume: `gluster volume heal volname full' ... and keep checking the heal info to ensure that the data is fully healed. Once data is fully healed... repeat the above process on another node. Later you can upgrade your clients at your convenience. Hope it helps. -sac ___ Gluster-users mailing list Gluster-users@gluster.org http://www.gluster.org/mailman/listinfo/gluster-users
[Gluster-users] gluster verbosity
Hello, Most of my gluster mounting points (in replica mode) are full of sequential directories (a0, a1, etc...) in .glusterfs. Those data usually reach several GB and finally block the volume. Are those data usefull and is there a way to reduce them, maybe with less verbosity? Thank you. ___ Gluster-users mailing list Gluster-users@gluster.org http://www.gluster.org/mailman/listinfo/gluster-users
[Gluster-users] gluster verbosity
Hello, Most of my gluster mounting points (in replica mode) are full of sequential directories (a0, a1, etc...) in .glusterfs. Those data usually reach several GB and finally block the volume. Are those data usefull and is there a way to reduce them, maybe with less verbosity? Thank you. ___ Gluster-users mailing list Gluster-users@gluster.org http://www.gluster.org/mailman/listinfo/gluster-users
[Gluster-users] Cannot move or rename files on 3.6.1 + Disperse Vol
Hi, with GlusterFS 3.6.1 and dispersed volumes I can't move or rename files. i.e. mkdir test, mv test test2 gives this error: [2015-01-19 11:23:47.464429] I [dht-common.c:1822:dht_lookup_cbk] 0-storage-recorder-dht: Entry /varie/test2 missing on subvol storage-recorder-disperse-1 [2015-01-19 11:23:47.466721] I [dht-common.c:1822:dht_lookup_cbk] 0-storage-recorder-dht: Entry /varie/test2 missing on subvol storage-recorder-disperse-1 [2015-01-19 11:23:47.468021] I [dht-common.c:1822:dht_lookup_cbk] 0-storage-recorder-dht: Entry /varie/test2 missing on subvol storage-recorder-disperse-1 [2015-01-19 11:23:47.468813] I [dht-rename.c:1344:dht_rename] 0-storage-recorder-dht: renaming /varie/test (hash=storage-recorder-disperse-1/cache=storage-recorder-disperse-0) = /varie/test2 (hash=storage-recorder-disperse-1/cache=nul) [2015-01-19 11:23:47.468860] E [ec-helpers.c:346:ec_loc_parent] 0-storage-recorder-disperse-1: Invalid loc [2015-01-19 11:23:47.469349] I [MSGID: 109030] [dht-rename.c:119:dht_rename_hashed_dir_cbk] 0-storage-recorder-dht: rename /varie/test - /varie/test2 on storage-recorder-disperse-1 failed, (gfid = 78545b91-87d0-4bb1-9fe9-d9d95a4299bf) [Invalid argument] [2015-01-19 11:23:47.469400] W [fuse-bridge.c:1755:fuse_rename_cbk] 0-glusterfs-fuse: 89604620: /varie/test - /varie/test2 = -1 (Invalid argument) Can you please indicate how to fix? Thanks Alessandro ___ Gluster-users mailing list Gluster-users@gluster.org http://www.gluster.org/mailman/listinfo/gluster-users
