Juno is EOL [1] so we aren't doing fixes for it anymore. I've cosed this as invalid, but if you still have this issue in a later, supported release, please feel free to reopen this issue and provide the updated version details of your environment in the description.
References: -------------- [1] http://docs.openstack.org/releases/ ** Changed in: nova Assignee: Elhay Efrat (elhayefrat) => (unassigned) ** Tags removed: volumes ** Changed in: nova Status: New => Invalid -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1528756 Title: nova instance was read-only mode Status in OpenStack Compute (nova): Invalid Bug description: Our Openstack brief Information & Issue 1. Version : Juno 2. Management(Nova, CInder, LB etc) & Compute Node OS ver : Ubuntu 14.04 3. H/W Model - Management Server : Dell R720 - Compute Node : HP C7000 (Blade 460C *6ea) - Storage : Netapp FAS 8020 - Switch : Nexus 4568 4. Issues - nova instance was read-only mode. - then we did reboot all instances except for Bootable Volume Instances. - I have thought that the NAS volume what have nova instance images temporarily disconnected. there are two Instance type we have 1) First type instance(OS) is launched from nfs (glance images) 2) Second is installed by cinder volume (Bootable Volume OS) 5. cause analysis - After Rebooting instances, all instances were normal status. - But there were no logs about NFS N/W disconnection in Compute Node, Storage, Switch. - And no Performance Issues (CPU, MEM, Disk IO, N/W traffic) - VM kernel I/O Error log kernel: end_request: I/O error, dev vda, sector 12523664 kernel: Buffer I/O error on device dm-1, logical block 388370 kernel: lost page write due to I/O error on dm-1 kernel: end_request: I/O error, dev vda, sector 36124456 kernel: Buffer I/O error on device dm-1, logical block 3338469 kernel: lost page write due to I/O error on dm-1 6. etc - nfs client version # dpkg -l |grep nfs ii libnfsidmap2:amd64 0.25-5 amd64 NFS idmapping library ii nfs-common 1:1.2.8-6ubuntu1.1 amd64 NFS support files common to client and server What is causing NFS temporary disconnection? To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1528756/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp

