- Users - oVirt List Archives

oVirt global utilization trend
by Abi Askushi 07 Mar '17

07 Mar '17

Hi, I see that the global utilization 24h trend graph (CPU, RAM, Disk) at dashboard is showing only the last 3 hours. The line for previous hours is flat (see attached). I remember that on a previous installation I had tested it was showing the full 24 hours. Tried to run again engine-setup but issue remains. Any suggestions? Thanx, Alex

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Problems adding iSCSI storage domain
by Simon Vincent 07 Mar '17

07 Mar '17

I have setup a small cluster running a hosted engine using iSCSI. I tried to add a new iSCSI storage domain but this failed as not all hosts could access the storage server. I fixed this problem but it now does not let me add the new storage domain as it shows "lun is already part of storage domain". The engine does not show any storage domains but if I look in the database it shows up there. How do I remove this broken storage domain and then re-add it?

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3.5->3.6 did not import hosted engine storage domain
by Chris Adams 07 Mar '17

07 Mar '17

So, on to my next upgrade issue (sorry for all the questions and thanks for everybody's help)... I upgraded my test cluster from 3.5 to 3.6 (latest version of each, all on CentOS 7 except the engine on CentOS 6). Now I'm working on the next step, upgrading to 4.0 and migrating the HE to the appliance. When I went from 3.5 to 3.6, I ended up with an fhanswers.conf in the shared storage that only contained "None"; I fixed that based on some mailing list messages (but just mentioning it in case it could be related). My problem is that the hosted engine storage domain did not get imported into the engine DB, so I can't proceed with "hosted-engine --upgrade-appliance". I didn't see any errors, so I'm not sure how that happened. I'm also not sure how to fix that. Suggestions? -- Chris Adams <cma(a)cmadams.net>

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restapi
by qinglong.dong＠horebdata.cn 07 Mar '17

07 Mar '17

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Replicated Glusterfs on top of ZFS
by Arman Khalatyan 07 Mar '17

07 Mar '17

Hi, I use 3 nodes with zfs and glusterfs. Are there any suggestions to optimize it? host zfs config 4TB-HDD+250GB-SSD: [root@clei22 ~]# zpool status pool: zclei22 state: ONLINE scan: scrub repaired 0 in 0h0m with 0 errors on Tue Feb 28 14:16:07 2017 config: NAME STATE READ WRITE CKSUM zclei22 ONLINE 0 0 0 HGST_HUS724040ALA640_PN2334PBJ4SV6T1 ONLINE 0 0 0 logs lv_slog ONLINE 0 0 0 cache lv_cache ONLINE 0 0 0 errors: No known data errors Name: GluReplica Volume ID: ee686dfe-203a-4caa-a691-26353460cc48 Volume Type: Replicate (Arbiter) Replica Count: 2 + 1 Number of Bricks: 3 Transport Types: TCP, RDMA Maximum no of snapshots: 256 Capacity: 3.51 TiB total, 190.56 GiB used, 3.33 TiB free

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Re: [ovirt-users] Storage balancer project
by nicolas＠devels.es 07 Mar '17

07 Mar '17

Hi, I added the LICENCE file [1] to the project. Regards. [1]: https://github.com/nkovacne/ovirt-storage-balancer/blob/master/LICENCE El 2017-03-07 06:36, Yaniv Kaul escribió: > On Mon, Mar 6, 2017, 10:18 PM <nicolas(a)devels.es> wrote: > >> Hi, >> >> I implemented a storage domain balancer [1], i.e. a script that >> tries to >> keep all storage domains under a defined threshold. We use our >> oVirt >> infrastructure for teaching so have several hundreds of users and >> cca. >> 800 VMs at this time, so something like this is really needed >> considering that when students create their VMs they tend to create >> their disks under the same storage domain (normally the first >> available >> one). This results in one or two heavily used SDs and the rest >> underused. >> >> I tried to keep it as simple as possible and doesn't have many >> features, >> but it seems to work (I tried it under our conditions: About 10 >> SDs, >> relatively highly used). If someone want to improve something on >> it, >> pull requests are welcome. >> >> Might also be an inspiration on [2]. >> >> Regards. >> >> [1]: https://github.com/nkovacne/ovirt-storage-balancer [1] > > Can you clarify the license? > Y. > >> [2]: https://bugzilla.redhat.com/show_bug.cgi?id=1331544 [2] >> _______________________________________________ >> Users mailing list >> Users(a)ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users [3] > > > Links: > ------ > [1] https://github.com/nkovacne/ovirt-storage-balancer > [2] https://bugzilla.redhat.com/show_bug.cgi?id=1331544 > [3] http://lists.ovirt.org/mailman/listinfo/users

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Storage balancer project
by nicolas＠devels.es 06 Mar '17

06 Mar '17

Hi, I implemented a storage domain balancer [1], i.e. a script that tries to keep all storage domains under a defined threshold. We use our oVirt infrastructure for teaching so have several hundreds of users and cca. 800 VMs at this time, so something like this is really needed considering that when students create their VMs they tend to create their disks under the same storage domain (normally the first available one). This results in one or two heavily used SDs and the rest underused. I tried to keep it as simple as possible and doesn't have many features, but it seems to work (I tried it under our conditions: About 10 SDs, relatively highly used). If someone want to improve something on it, pull requests are welcome. Might also be an inspiration on [2]. Regards. [1]: https://github.com/nkovacne/ovirt-storage-balancer [2]: https://bugzilla.redhat.com/show_bug.cgi?id=1331544

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[ANN] oVirt 4.1.1 First Release Candidate
by Sandro Bonazzola 06 Mar '17

06 Mar '17

The oVirt Project is pleased to announce the availability of the First Release Candidate of oVirt 4.1.1 for testing, as of March 3rd, 2017 This is pre-release software. Please take a look at our community page[1] to know how to ask questions and interact with developers and users. All issues or bugs should be reported via oVirt Bugzilla[2]. This pre-release should not to be used in production. This update is the first release candidate of the first in a series of stabilization updates to the 4.1 series. 4.1.1 brings 26 enhancements and more than 350 bugfixes, including more than 130 high or urgent severity fixes, on top of oVirt 4.1 series This release is available now for: * Fedora 24 (tech preview) * Red Hat Enterprise Linux 7.3 or later * CentOS Linux (or similar) 7.3 or later This release supports Hypervisor Hosts running: * Red Hat Enterprise Linux 7.3 or later * CentOS Linux (or similar) 7.3 or later * Fedora 24 (tech preview) See the release notes draft [3] for installation / upgrade instructions and a list of new features and bugs fixed. Notes: - oVirt Live has been already built [4] - oVirt Node and Appliance has not been built for this release due to build issues we're still investigating. Additional Resources: * Read more about the oVirt 4.1.1 release highlights: http://www.ovirt.org/release/4.1.1/ * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] https://www.ovirt.org/community/ [2] https://bugzilla.redhat.com/enter_bug.cgi?classification=oVirt [3] http://www.ovirt.org/release/4.1.1/ [4] http://resources.ovirt.org/pub/ovirt-4.1-pre/iso/ -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Re: [ovirt-users] [Gluster-users] Hot to force glusterfs to use RDMA?
by Arman Khalatyan 06 Mar '17

06 Mar '17

Dear Deepak, thank you for the hints, which gluster are you using? As you can see from my previous email that the RDMA connection tested with qperf. It is working as expected. In my case the clients are servers as well, they are hosts for the ovirt. Disabling selinux is nor recommended by ovirt, but i will give a try. Am 03.03.2017 7:50 vorm. schrieb "Deepak Naidu" <dnaidu(a)nvidia.com>: I have been testing glusterfs over RDMA & below is the command I use. Reading up the logs, it looks like your IB(InfiniBand) device is not being initialized. I am not sure if u have an issue on the client IB or the storage server IB. Also have you configured ur IB devices correctly. I am using IPoIB. Can you check your firewall, disable selinux, I think, you might have checked it already ? *mount -t glusterfs -o transport=rdma storageN1:/vol0 /mnt/vol0* · *The below error seems if you have issue starting your volume. I had issue, when my transport was set to tcp,rdma. I had to force start my volume. If I had set it only to tcp on the volume, the volume would start easily.* [2017-03-02 11:49:47.829391] E [MSGID: 114022] [client.c:2530:client_init_rpc] 0-GluReplica-client-2: failed to initialize RPC [2017-03-02 11:49:47.829413] E [MSGID: 101019] [xlator.c:433:xlator_init] 0-GluReplica-client-2: Initialization of volume 'GluReplica-client-2' failed, review your volfile again [2017-03-02 11:49:47.829425] E [MSGID: 101066] [graph.c:324:glusterfs_graph_init] 0-GluReplica-client-2: initializing translator failed [2017-03-02 11:49:47.829436] E [MSGID: 101176] [graph.c:673:glusterfs_graph_activate] 0-graph: init failed · *The below error seems if you have issue with IB device. If not configured properly.* [2017-03-02 11:49:47.828996] W [MSGID: 103071] [rdma.c:4589:__gf_rdma_ctx_create] 0-rpc-transport/rdma: rdma_cm event channel creation failed [No such device] [2017-03-02 11:49:47.829067] W [MSGID: 103055] [rdma.c:4896:init] 0-GluReplica-client-2: Failed to initialize IB Device [2017-03-02 11:49:47.829080] W [rpc-transport.c:354:rpc_transport_load] 0-rpc-transport: 'rdma' initialization failed -- Deepak *From:* gluster-users-bounces(a)gluster.org [mailto:gluster-users-bounces@ gluster.org] *On Behalf Of *Sahina Bose *Sent:* Thursday, March 02, 2017 10:26 PM *To:* Arman Khalatyan; gluster-users(a)gluster.org; Rafi Kavungal Chundattu Parambil *Cc:* users *Subject:* Re: [Gluster-users] [ovirt-users] Hot to force glusterfs to use RDMA? [Adding gluster users to help with error] [2017-03-02 11:49:47.828996] W [MSGID: 103071] [rdma.c:4589:__gf_rdma_ctx_create] 0-rpc-transport/rdma: rdma_cm event channel creation failed [No such device] On Thu, Mar 2, 2017 at 5:36 PM, Arman Khalatyan <arm2arm(a)gmail.com> wrote: BTW RDMA is working as expected: root@clei26 ~]# qperf clei22.vib tcp_bw tcp_lat tcp_bw: bw = 475 MB/sec tcp_lat: latency = 52.8 us [root@clei26 ~]# thank you beforehand. Arman. On Thu, Mar 2, 2017 at 12:54 PM, Arman Khalatyan <arm2arm(a)gmail.com> wrote: just for reference: gluster volume info Volume Name: GluReplica Type: Replicate Volume ID: ee686dfe-203a-4caa-a691-26353460cc48 Status: Started Snapshot Count: 0 Number of Bricks: 1 x (2 + 1) = 3 Transport-type: tcp,rdma Bricks: Brick1: 10.10.10.44:/zclei22/01/glu Brick2: 10.10.10.42:/zclei21/01/glu Brick3: 10.10.10.41:/zclei26/01/glu (arbiter) Options Reconfigured: network.ping-timeout: 30 server.allow-insecure: on storage.owner-gid: 36 storage.owner-uid: 36 cluster.data-self-heal-algorithm: full features.shard: on cluster.server-quorum-type: server cluster.quorum-type: auto network.remote-dio: enable cluster.eager-lock: enable performance.stat-prefetch: off performance.io-cache: off performance.read-ahead: off performance.quick-read: off performance.readdir-ahead: on nfs.disable: on [root@clei21 ~]# gluster volume status Status of volume: GluReplica Gluster process TCP Port RDMA Port Online Pid ------------------------------------------------------------ ------------------ Brick 10.10.10.44:/zclei22/01/glu 49158 49159 Y 15870 Brick 10.10.10.42:/zclei21/01/glu 49156 49157 Y 17473 Brick 10.10.10.41:/zclei26/01/glu 49153 49154 Y 18897 Self-heal Daemon on localhost N/A N/A Y 17502 Self-heal Daemon on 10.10.10.41 N/A N/A Y 13353 Self-heal Daemon on 10.10.10.44 N/A N/A Y 32745 Task Status of Volume GluReplica ------------------------------------------------------------ ------------------ There are no active volume tasks On Thu, Mar 2, 2017 at 12:52 PM, Arman Khalatyan <arm2arm(a)gmail.com> wrote: I am not able to mount with RDMA over cli.... Are there some volfile parameters needs to be tuned? /usr/bin/mount -t glusterfs -o backup-volfile-servers=10.10. 10.44:10.10.10.42:10.10.10.41,transport=rdma 10.10.10.44:/GluReplica /mnt [2017-03-02 11:49:47.795511] I [MSGID: 100030] [glusterfsd.c:2454:main] 0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 3.8.9 (args: /usr/sbin/glusterfs --volfile-server=10.10.10.44 --volfile-server=10.10.10.44 --volfile-server=10.10.10.42 --volfile-server=10.10.10.41 --volfile-server-transport=rdma --volfile-id=/GluReplica.rdma /mnt) [2017-03-02 11:49:47.812699] I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker] 0-epoll: Started thread with index 1 [2017-03-02 11:49:47.825210] I [MSGID: 101190] [event-epoll.c:628:event_dispatch_epoll_worker] 0-epoll: Started thread with index 2 [2017-03-02 11:49:47.828996] W [MSGID: 103071] [rdma.c:4589:__gf_rdma_ctx_create] 0-rpc-transport/rdma: rdma_cm event channel creation failed [No such device] [2017-03-02 11:49:47.829067] W [MSGID: 103055] [rdma.c:4896:init] 0-GluReplica-client-2: Failed to initialize IB Device [2017-03-02 11:49:47.829080] W [rpc-transport.c:354:rpc_transport_load] 0-rpc-transport: 'rdma' initialization failed [2017-03-02 11:49:47.829272] W [rpc-clnt.c:1070:rpc_clnt_connection_init] 0-GluReplica-client-2: loading of new rpc-transport failed [2017-03-02 11:49:47.829325] I [MSGID: 101053] [mem-pool.c:641:mem_pool_destroy] 0-GluReplica-client-2: size=588 max=0 total=0 [2017-03-02 11:49:47.829371] I [MSGID: 101053] [mem-pool.c:641:mem_pool_destroy] 0-GluReplica-client-2: size=124 max=0 total=0 [2017-03-02 11:49:47.829391] E [MSGID: 114022] [client.c:2530:client_init_rpc] 0-GluReplica-client-2: failed to initialize RPC [2017-03-02 11:49:47.829413] E [MSGID: 101019] [xlator.c:433:xlator_init] 0-GluReplica-client-2: Initialization of volume 'GluReplica-client-2' failed, review your volfile again [2017-03-02 11:49:47.829425] E [MSGID: 101066] [graph.c:324:glusterfs_graph_init] 0-GluReplica-client-2: initializing translator failed [2017-03-02 11:49:47.829436] E [MSGID: 101176] [graph.c:673:glusterfs_graph_activate] 0-graph: init failed [2017-03-02 11:49:47.830003] W [glusterfsd.c:1327:cleanup_and_exit] (-->/usr/sbin/glusterfs(mgmt_getspec_cbk+0x3c1) [0x7f524c9dbeb1] -->/usr/sbin/glusterfs(glusterfs_process_volfp+0x172) [0x7f524c9d65d2] -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x7f524c9d5b4b] ) 0-: received signum (1), shutting down [2017-03-02 11:49:47.830053] I [fuse-bridge.c:5794:fini] 0-fuse: Unmounting '/mnt'. [2017-03-02 11:49:47.831014] W [glusterfsd.c:1327:cleanup_and_exit] (-->/lib64/libpthread.so.0(+0x7dc5) [0x7f524b343dc5] -->/usr/sbin/glusterfs(glusterfs_sigwaiter+0xe5) [0x7f524c9d5cd5] -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x7f524c9d5b4b] ) 0-: received signum (15), shutting down [2017-03-02 11:49:47.831014] W [glusterfsd.c:1327:cleanup_and_exit] (-->/lib64/libpthread.so.0(+0x7dc5) [0x7f524b343dc5] -->/usr/sbin/glusterfs(glusterfs_sigwaiter+0xe5) [0x7f524c9d5cd5] -->/usr/sbin/glusterfs(cleanup_and_exit+0x6b) [0x7f524c9d5b4b] ) 0-: received signum (15), shutting down On Thu, Mar 2, 2017 at 12:11 PM, Sahina Bose <sabose(a)redhat.com> wrote: You will need to pass additional mount options while creating the storage domain (transport=rdma) Please let us know if this works. On Thu, Mar 2, 2017 at 2:42 PM, Arman Khalatyan <arm2arm(a)gmail.com> wrote: Hi, Are there way to force the connections over RDMA only? If I check host mounts I cannot see rdma mount option: mount -l| grep gluster 10.10.10.44:/GluReplica on /rhev/data-center/mnt/glusterSD/10.10.10.44:_GluReplica type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions, allow_other,max_read=131072) I have glusterized 3 nodes: GluReplica Volume ID: ee686dfe-203a-4caa-a691-26353460cc48 Volume Type: Replicate (Arbiter) Replica Count: 2 + 1 Number of Bricks: 3 Transport Types: TCP, RDMA Maximum no of snapshots: 256 Capacity: 3.51 TiB total, 190.56 GiB used, 3.33 TiB free _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users ------------------------------ This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. ------------------------------

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oVirt Nested Virtualization
by Luca 'remix_tj' Lorenzetto 06 Mar '17

06 Mar '17

Hello, we're installing a small ovirt cluster for hosting some test environments at work. We're interested in testing VM running hypervisors (i.e ovirt itself or a small openstack deployment). Is there any documentation showing how to enable nested virtualization in ovirt? I've seen that while adding an host to the cluster there is the opportunity to flag "Nested Virtualization" option, but i didn't understand if other packages and configs are required. Our environment is running latest ovirt 4.1 installed with ovirt-node-ng. Luca -- "E' assurdo impiegare gli uomini di intelligenza eccellente per fare calcoli che potrebbero essere affidati a chiunque se si usassero delle macchine" Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) "Internet è la più grande biblioteca del mondo. Ma il problema è che i libri sono tutti sparsi sul pavimento" John Allen Paulos, Matematico (1945-vivente) Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca(a)gmail.com>

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