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Re: [ovirt-devel] [ovirt-users] oVirt HA.
by Sven Kieske 30 Apr '15

30 Apr '15

On 29/04/15 21:53, Dan Yasny wrote: > There is always room for improvement, but think about it: ever since SolidICE, there has been a demand to minimize the amount of hardware used in a minimalistic setup, thus the hosted engine project. And now that we have it, all of a sudden, we need to provide a way to make multiple engines work in active/passive mode? If that capability is provided, I'm sure a new demand will arise, asking for active/active engines, infinitely scalable, and so on. of course you wan't active/active clusters for an enterprise product, rather sooner than later > > The question really is, where the line is drawn. The engine downtime can be a few minutes, it's not that critical in setups of hundreds of hosts. oVirt's raison d'etre is to make VMs run, everything else is just plumbing around that. I disagree: ovirt is a provider of critical infrastructure (vms and their management) for modern it business. imagine a large organisation just using ovirt for their virtualization, with lots of different departments which at will can spawn their own vms, maybe even from different countrys with different time zones (just like red hat ;) ). of course, if just the engine service is down for some reason and you can just restart it with an outage of some seconds, or maybe a minute - fine. but everything above a minute could become critical for large orgs relying on the ability to spawn vms at any given time. or imagine critical HA vms running on ovirt: you can't migrate them, when the engine is not running. you might not even want a downtime of a single second for them, that's why you implemented things like live migration in the first place. the bottom line is: if you manage critical infrastructure, the tools to manage this infrastructure have to be as reliable as the infrastructure itself. -- Mit freundlichen Grüßen / Regards Sven Kieske Systemadministrator Mittwald CM Service GmbH & Co. KG Königsberger Straße 6 32339 Espelkamp T: +49-5772-293-100 F: +49-5772-293-333 https://www.mittwald.de Geschäftsführer: Robert Meyer St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen

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Validation issue with IntegerEntityModelTextBoxEditor
by Ramesh 30 Apr '15

30 Apr '15

Hi, We have a validation issue with IntegerEntityModelTextBoxEditor. It converts non numeric values as null to the model. As a result IntegerValidation.validate() will be success always even in case of non integer value. Any suggestion to fix this issue?. Regards, Ramesh

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"Could not find working O_DIRECT alignment. Try cache.direct=off"
by Christopher Pereira 30 Apr '15

30 Apr '15

virDomainCreateXML() is returning "Could not find working O_DIRECT alignment. Try cache.direct=off". This image was working some days ago with a previous version. Did the image get corrupted or could this be related to a recent change in oVirt? --- Logs --- Thread-694::INFO::2015-04-30 03:32:49,512::vm::1765::vm.Vm::(_run) vmId=`bc99ded7-edc9-4bc5-bca5-a61a286757d2`::<?xml version="1.0" encoding="utf-8"?> <domain type="kvm"> <name>Test 31</name> <uuid>bc99ded7-edc9-4bc5-bca5-a61a286757d2</uuid> <memory>12582912</memory> <currentMemory>12582912</currentMemory> <vcpu current="4">16</vcpu> <devices> <channel type="unix"> <target name="com.redhat.rhevm.vdsm" type="virtio"/> <source mode="bind" path="/var/lib/libvirt/qemu/channels/bc99ded7-edc9-4bc5-bca5-a61a286757d2.com.redhat.rhevm.vdsm"/> </channel> <channel type="unix"> <target name="org.qemu.guest_agent.0" type="virtio"/> <source mode="bind" path="/var/lib/libvirt/qemu/channels/bc99ded7-edc9-4bc5-bca5-a61a286757d2.org.qemu.guest_agent.0"/> </channel> <input bus="ps2" type="mouse"/> <sound model="ich6"/> <memballoon model="virtio"> <address bus="0x00" domain="0x0000" function="0x0" slot="0x06" type="pci"/> </memballoon> <controller index="0" ports="16" type="virtio-serial"> <address bus="0x00" domain="0x0000" function="0x0" slot="0x04" type="pci"/> </controller> <video> <address bus="0x00" domain="0x0000" function="0x0" slot="0x02" type="pci"/> <model heads="1" type="cirrus" vram="32768"/> </video> <graphics autoport="yes" listen="0" passwd="*****" passwdValidTo="1970-01-01T00:00:01" port="-1" type="vnc"/> <interface type="bridge"> <address bus="0x00" domain="0x0000" function="0x0" slot="0x03" type="pci"/> <mac address="00:1a:4a:16:01:51"/> <model type="virtio"/> <source bridge=";vdsmdummy;"/> <filterref filter="vdsm-no-mac-spoofing"/> <link state="up"/> </interface> <disk device="cdrom" snapshot="no" type="file"> <address bus="1" controller="0" target="0" type="drive" unit="0"/> <source file="" startupPolicy="optional"/> <target bus="ide" dev="hdc"/> <readonly/> <serial/> </disk> <disk device="disk" snapshot="no" type="file"> <address bus="0x00" domain="0x0000" function="0x0" slot="0x05" type="pci"/> <source file="/rhev/data-center/00000001-0001-0001-0001-00000000007e/3233144b-7be1-445f-9ea6-6aebbacbb93f/images/5a7db80d-f037-4dcb-8059-6706a2b62b19/db63659c-c9a9-4f4f-887f-3443a008a27e"/> <target bus="virtio" dev="vda"/> <serial>5a7db80d-f037-4dcb-8059-6706a2b62b19</serial> <boot order="1"/> <driver cache="none" error_policy="stop" io="threads" name="qemu" type="raw"/> </disk> </devices> <os> <type arch="x86_64" machine="rhel6.5.0">hvm</type> <smbios mode="sysinfo"/> </os> <sysinfo type="smbios"> <system> <entry name="manufacturer">oVirt</entry> <entry name="product">oVirt Node</entry> <entry name="version">7-1.1503.el7.centos.2.8</entry> <entry name="serial">4C4C4544-0042-4B10-8058-B2C04F5A5A31</entry> <entry name="uuid">bc99ded7-edc9-4bc5-bca5-a61a286757d2</entry> </system> </sysinfo> <clock adjustment="3600" offset="variable"> <timer name="rtc" tickpolicy="catchup"/> <timer name="pit" tickpolicy="delay"/> <timer name="hpet" present="no"/> </clock> <features> <acpi/> </features> <cpu match="exact"> <model>SandyBridge</model> <topology cores="1" sockets="16" threads="1"/> </cpu> </domain> Thread-694::ERROR::2015-04-30 03:32:49,978::vm::741::vm.Vm::(_startUnderlyingVm) vmId=`bc99ded7-edc9-4bc5-bca5-a61a286757d2`::The vm start process failed Traceback (most recent call last): File "/usr/share/vdsm/virt/vm.py", line 689, in _startUnderlyingVm self._run() File "/usr/share/vdsm/virt/vm.py", line 1800, in _run self._connection.createXML(domxml, flags), File "/usr/lib/python2.7/site-packages/vdsm/libvirtconnection.py", line 126, in wrapper ret = f(*args, **kwargs) File "/usr/lib64/python2.7/site-packages/libvirt.py", line 3427, in createXML if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self) libvirtError: internal error: process exited while connecting to monitor: 2015-04-30T06:32:49.783554Z qemu-kvm: -drive file=/rhev/data-center/00000001-0001-0001-0001-00000000007e/3233144b-7be1-445f-9ea6-6aebbacbb93f/images/5a7db80d-f037-4dcb-8059-6706a2b62b19/db63659c-c9a9-4f4f-887f-3443a008a27e,if=none,id=drive-virtio-disk0,format=raw,serial=5a7db80d-f037-4dcb-8059-6706a2b62b19,cache=none,werror=stop,rerror=stop,aio=threads: could not open disk image /rhev/data-center/00000001-0001-0001-0001-00000000007e/3233144b-7be1-445f-9ea6-6aebbacbb93f/images/5a7db80d-f037-4dcb-8059-6706a2b62b19/db63659c-c9a9-4f4f-887f-3443a008a27e: Could not find working O_DIRECT alignment. Try cache.direct=off. --- Related BZ : https://bugzilla.redhat.com/show_bug.cgi?id=1184363

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Could sanlock manage leases on a separate replica 3 gluster volume?
by Christopher Pereira 30 Apr '15

30 Apr '15

Could sanlock manage leases on a special separate replica 3 gluster volume? Would this avoid using replica 3 for the rest of the data?

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Re: [ovirt-devel] [ovirt-users] oVirt HA.
by Sven Kieske 30 Apr '15

30 Apr '15

On 28/04/15 16:20, Dan Yasny wrote: > HA does not mean multiple running instances of the same service. It means > if the service is gone, it will automatically be restored on a working > server. That is a pretty narrow definition of HA, which is not shared by most parts of the community (and the world), leading to much confusion of users on this very ML. HA in general means your service downtime gets minimized, today mostly realized through load balancing and clustering software services. just restarting a service (in this case ovirt-engine vm) on a different host is not what todays user expect under the term "HA" imho. in theory it should be possible as a design goal to make multiple ovirt-engine share one remote data base (remote database support is already there). I think this would be a huge feature for ovirt, but also requires quite some design and coding to be done. thus adding the devel list. -- Mit freundlichen Grüßen / Regards Sven Kieske Systemadministrator Mittwald CM Service GmbH & Co. KG Königsberger Straße 6 32339 Espelkamp T: +49-5772-293-100 F: +49-5772-293-333 https://www.mittwald.de Geschäftsführer: Robert Meyer St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen

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Annoucing the 1st oVirt infra hackathon - join the fun!
by Eyal Edri 29 Apr '15

29 Apr '15

Hi to all dev & infra members of the oVirt project. As you know (or not :) , the infra team handles many resources and systems that supports the oVirt project. Some are visible like gerrit or jenkins, and some are in the background like puppet, foreman, data-centers maintenance, monitoring, jenkins job builder and many more.. As an effort to reduce open issues and tickets [1], we decided to do the 1st infra hackathon so we can join forces for a single concentrated day and try to resolve as many tickets as possible. We've created a Google sheet for it [2], so anyone from the community can volunteer and help out, even if he's not an infra member! This is also a great opportunity for new community members that wish to join the team or just get dirty with some "devops" tasks... Each task has a 'verifier' column which includes all infra members or people from the ovirt project who can assist with code review, help, verification. [3] If you see a task in [1] and feel like you'd want to take it on, feel free to add it to [2] if it's not there. An exact date will be published soon, but might be as early as next week, so make sure to write your name on a task if you're interested! note: infra team availability during the hackathon might be limited, and only urgent issues will be handled. happy hacking, oVirt Infra Team [1] https://fedorahosted.org/ovirt/report/1 [2] http://goo.gl/QtWVJ3 [3] if you think you can help as a reviewer, please add your name in sheet2.

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[ACTION NEEDED][QE] oVirt 3.6.0 status
by Sandro Bonazzola 29 Apr '15

29 Apr '15

Hi, here's an update on 3.6 status on integration / rel-eng side The tracker bug for 3.6.0 [1] currently shows no blockers. Repository closure is currently broken on Fedora 20 and CentOS 6 due to a missing required dependency on recent libvirt and vdsm rpm dropping el6 support. VDSM builds for EL6 are no more available on master snapshot. ACTION: jenkins job owners: please review jenkins jobs relying on VDSM to be available on EL6. There are 535 bugs [2] targeted to 3.6.0. NEW ASSIGNED POST Total abrt+infra 2 0 0 1 docs 10 0 0 10 external 1 0 0 1 gluster 30 36 20 86 i18n 2 0 0 2 infra 44 3 8 55 integration 35 2 9 46 network 46 1 8 55 node 26 2 3 31 ovirt-node-plugin-vdsm 1 0 0 1 sla 45 3 2 50 spice 1 0 0 1 storage 73 7 5 85 ux 27 0 3 30 virt 63 6 11 80 Total 406 60 69 535 Features submission is now CLOSED as per current release schedule. ACTION: review features tracked in the google doc[3] On Integration side: * Progress on backup / restore RFEs * Fixing regressions in Hosted Engine deployment on additional hosts On Release engineering side: * Working with infra team fixing jenkins issues ACTION: community members are welcome to join QE effort[4] by testing nightly master snapshot[5] on test systems [1] https://bugzilla.redhat.com/1155425 [2] https://bugzilla.redhat.com/buglist.cgi?quicksearch=target_release%3A3.6.0%… [3] http://goo.gl/9X3G49 [4] http://www.ovirt.org/OVirt_Quality_Assurance [5] http://www.ovirt.org/Install_nightly_snapshot -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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[QE][ACTION REQUIRED] oVirt 3.5.3 status
by Sandro Bonazzola 29 Apr '15

29 Apr '15

Hi, We have no blockers for 3.5.3[1] and no blocking dependencies. We still have 11 bugs in MODIFIED and 2 on QA[2]: MODIFIED ON_QA Total gluster 1 0 1 infra 3 2 5 integration 1 0 1 sla 1 0 1 storage 5 0 5 Total 11 2 13 ACTION: Testers: you're welcome to verify bugs currently ON_QA. ACTION: Testers: please add yourself to the test page [5] We have 7 bugs currently targeted to 3.5.3[3]: Whiteboard NEW POST Total external 1 0 1 infra 0 1 1 network 0 1 1 node 0 2 2 ppc 0 1 1 storage 0 1 1 Total 1 6 7 ACTION: Maintainers / Assignee: to review the bugs targeted to 3.5.3 and mark them as blockers or postpone to 3.5.4. ACTION: Maintainers: to fill release notes for 3.5.3, the page has been created and updated here [4] A release management entry has been added for tracking the schedule of 3.5.3[6] and tentative schedule has been proposed as follow: 2015-05-27 Release candidate 2015-06-09 General availability [1] https://bugzilla.redhat.com/1198142 [2] http://goo.gl/WqkJnn [3] https://bugzilla.redhat.com/buglist.cgi?quicksearch=product%3Aovirt%20targe… [4] http://www.ovirt.org/OVirt_3.5.3_Release_Notes [5] http://www.ovirt.org/Testing/oVirt_3.5.3_Testing [6] http://www.ovirt.org/OVirt_3.5.z_Release_Management#oVirt_3.5.3 -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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VDSM - sampling.py - remove() called without previous add()
by Christopher Pereira 29 Apr '15

29 Apr '15

This is a multi-part message in MIME format. --------------060105040505080104010504 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Hi, In sampling.py, remove() is being called without calling add() before, which throws: JsonRpc (StompReactor)::DEBUG::2015-04-28 17:35:55,061::stompReactor::94::Broker.StompAdapter::(handle_frame) Handling message <StompFrame command=u'SEND'> Thread-37401::DEBUG::2015-04-28 17:35:55,062::__init__::445::jsonrpc.JsonRpcServer::(_serveRequest) Calling 'VM.destroy' in bridge with {u'vmID': u'6ec9c0a0-2879-4bfe-9a79-92471881ebfe'} JsonRpcServer::DEBUG::2015-04-28 17:35:55,062::__init__::482::jsonrpc.JsonRpcServer::(serve_requests) Waiting for request Thread-37401::INFO::2015-04-28 17:35:55,062::API::334::vds::(destroy) vmContainerLock acquired by vm 6ec9c0a0-2879-4bfe-9a79-92471881ebfe Thread-37401::DEBUG::2015-04-28 17:35:55,062::vm::3513::vm.Vm::(destroy) vmId=`6ec9c0a0-2879-4bfe-9a79-92471881ebfe`::destroy Called Thread-37401::INFO::2015-04-28 17:35:55,062::vm::3444::vm.Vm::(releaseVm) vmId=`6ec9c0a0-2879-4bfe-9a79-92471881ebfe`::Release VM resources Thread-37401::WARNING::2015-04-28 17:35:55,062::vm::375::vm.Vm::(_set_lastStatus) vmId=`6ec9c0a0-2879-4bfe-9a79-92471881ebfe`::trying to set state to Powering down when already Down Thread-37401::ERROR::2015-04-28 17:35:55,063::__init__::469::jsonrpc.JsonRpcServer::(_serveRequest) Internal server error Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py", line 464, in _serveRequest res = method(**params) File "/usr/share/vdsm/rpc/Bridge.py", line 273, in _dynamicMethod result = fn(*methodArgs) File "/usr/share/vdsm/API.py", line 339, in destroy res = v.destroy() File "/usr/share/vdsm/virt/vm.py", line 3515, in destroy result = self.doDestroy() File "/usr/share/vdsm/virt/vm.py", line 3533, in doDestroy return self.releaseVm() File "/usr/share/vdsm/virt/vm.py", line 3448, in releaseVm sampling.stats_cache.remove(self.id) File "/usr/share/vdsm/virt/sampling.py", line 428, in remove if vmid in self._vm_last_timestamp.keys(): KeyError: u'6ec9c0a0-2879-4bfe-9a79-92471881ebfe' Thread-37401::DEBUG::2015-04-28 17:35:55,063::stompReactor::158::yajsonrpc.StompServer::(send) Sending response In file '/usr/share/vdsm/virt/sampling.py': def add(self, vmid): """ Warm up the cache for the given VM. This is to avoid races during the first sampling and the first reporting, which may result in a VM wrongly reported as unresponsive. """ with self._lock: self._vm_last_timestamp[vmid] = self._clock() def remove(self, vmid): """ Remove any data from the cache related to the given VM. """ with self._lock: * if vmid in self._vm_last_timestamp.keys():**<----------------- I patched here as a workarround ** del self._vm_last_timestamp[vmid]* --------------060105040505080104010504 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> Hi, In sampling.py, remove() is being called without calling add() before, which throws: <blockquote>JsonRpc (StompReactor)::DEBUG::2015-04-28 17:35:55,061::stompReactor::94::Broker.StompAdapter::(handle_frame) Handling message <StompFrame command=u'SEND'> Thread-37401::DEBUG::2015-04-28 17:35:55,062::__init__::445::jsonrpc.JsonRpcServer::(_serveRequest) Calling 'VM.destroy' in bridge with {u'vmID': u'6ec9c0a0-2879-4bfe-9a79-92471881ebfe'} JsonRpcServer::DEBUG::2015-04-28 17:35:55,062::__init__::482::jsonrpc.JsonRpcServer::(serve_requests) Waiting for request Thread-37401::INFO::2015-04-28 17:35:55,062::API::334::vds::(destroy) vmContainerLock acquired by vm 6ec9c0a0-2879-4bfe-9a79-92471881ebfe Thread-37401::DEBUG::2015-04-28 17:35:55,062::vm::3513::vm.Vm::(destroy) vmId=`6ec9c0a0-2879-4bfe-9a79-92471881ebfe`::destroy Called Thread-37401::INFO::2015-04-28 17:35:55,062::vm::3444::vm.Vm::(releaseVm) vmId=`6ec9c0a0-2879-4bfe-9a79-92471881ebfe`::Release VM resources Thread-37401::WARNING::2015-04-28 17:35:55,062::vm::375::vm.Vm::(_set_lastStatus) vmId=`6ec9c0a0-2879-4bfe-9a79-92471881ebfe`::trying to set state to Powering down when already Down Thread-37401::ERROR::2015-04-28 17:35:55,063::__init__::469::jsonrpc.JsonRpcServer::(_serveRequest) Internal server error Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py", line 464, in _serveRequest res = method(**params) File "/usr/share/vdsm/rpc/Bridge.py", line 273, in _dynamicMethod result = fn(*methodArgs) File "/usr/share/vdsm/API.py", line 339, in destroy res = v.destroy() File "/usr/share/vdsm/virt/vm.py", line 3515, in destroy result = self.doDestroy() File "/usr/share/vdsm/virt/vm.py", line 3533, in doDestroy return self.releaseVm() File "/usr/share/vdsm/virt/vm.py", line 3448, in releaseVm sampling.stats_cache.remove(self.id) File "/usr/share/vdsm/virt/sampling.py", line 428, in remove if vmid in self._vm_last_timestamp.keys(): KeyError: u'6ec9c0a0-2879-4bfe-9a79-92471881ebfe' Thread-37401::DEBUG::2015-04-28 17:35:55,063::stompReactor::158::yajsonrpc.StompServer::(send) Sending response </blockquote> In file '/usr/share/vdsm/virt/sampling.py': def add(self, vmid): """ Warm up the cache for the given VM. This is to avoid races during the first sampling and the first reporting, which may result in a VM wrongly reported as unresponsive. """ with self._lock: self._vm_last_timestamp[vmid] = self._clock() def remove(self, vmid): """ Remove any data from the cache related to the given VM. """ with self._lock: if vmid in self._vm_last_timestamp.keys(): <----------------- I patched here as a workarround del self._vm_last_timestamp[vmid] </body> </html> --------------060105040505080104010504--

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Orphaning ovirt-node in Fedora
by Fabian Deutsch 29 Apr '15

29 Apr '15

Hey, historically we maintained the ovirt-node package in Fedora. But due to the nature of ovirt-node the package is not directly usable in Fedora. To prevent an accidental use of the package and because there is no other value in maintaining it there, I plan to orphan this package in Fedora. Is anybody objecting to this? If not, then I'll orphan it in one week. We can always bring it back if it becomes necessary. but I do not see a reason why this should happen. Greetings fabian

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