Re: [ovirt-users] Importing gluster SD from geo-replicated volume

Hi, I have two DC's (both initialized), two-node each, and on the first one I have a replica 2 gluster storage domain that is geo-replicating on a replica 2 slave volume on the second DC (managed within the same engine). When I stop the replication (volumes are synced) and try to import the gluster storage domain that resides on the slave, import storage domain dialog throws a general exception. Exception is raised when vdsm loads the list of backup servers so that the backup-volfile-servers mount option could get populated. If I override that in storageServer.py, so that it always return blank, or when I manually enter this option in the import storage domain dialog, then everything works as expected.

Maybe it's worth mentioning that I have a dedicated gluster network and hostnames for all nodes in both DC's (node hostname, and hostname I use for gluster on that node are different), and that all attempts to import a storage domain were on the second DC. Btw, setting up gluster geo-replication from oVirt was a breeze, easy and straightforward. Importing domain based on slave gluster volume works when gluster storage domain that resides on master volume gets removed from the first DC. This is something that we could improve, if I don't detach and remove original gluster sd, import storage dialog just shows up again after a short "running circle", but it should provide a warning that there is another storage domain already active/registered in the engine with the same ID/name and that the domain should be removed (or the engine can do it for us). I get this warning only when I've already removed storage domain on a master volume from the first DC (which doesn't make sense to me).

I can open bug reports for both issues if needed, just want to check if the rationale behind the process is correct or not. vdsm-gluster-4.17.10.1-0.el7 ovirt-engine-webadmin-portal-3.6.1-0.0.master.20151117185807.git529d3d2.el7 engine.log 2015-11-19 07:33:15,245 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (default task-23) [34886be8] Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: The error message for connection hostname:/volname returned by VDSM was: General Exception 2015-11-19 07:33:15,245 ERROR [org.ovirt.engine.core.bll.storage.BaseFsStorageHelper] (default task-23) [34886be8] The connection with details 'hostname:/volname' failed because of error code '100' and error message is: general exception vdsm.log Thread-38::ERROR::2015-11-19 07:33:15,237::hsm::2465::Storage.HSM::(connectStorageServer) Could not connect to storageServer Traceback (most recent call last): File "/usr/share/vdsm/storage/hsm.py", line 2462, in connectStorageServer conObj.connect() File "/usr/share/vdsm/storage/storageServer.py", line 224, in connect self._mount.mount(self.options, self._vfsType, cgroup=self.CGROUP) File "/usr/share/vdsm/storage/storageServer.py", line 324, in options backup_servers_option = self._get_backup_servers_option() File "/usr/share/vdsm/storage/storageServer.py", line 341, in _get_backup_servers_option servers.remove(self._volfileserver) ValueError: list.remove(x): x not in list _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users