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devel@ovirt.org

June 2014

60 participants
117 discussions

[Devel] Proposing Yedidyah Bar David as oVirt Hosted Engine Setup maintainer
by Sandro Bonazzola 14 Jan '15

14 Jan '15

Hi, I would like to propose Yedidyah Bar David as oVirt Hosted Engine Setup co-maintainer. Yedidyah contributed to oVirt Hosted Engine Setup since early design phase and contributed dozens of patches. Your response would be appreciated. Thanks in advance. -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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[QE] Hardening Guide
by Sandro Bonazzola 17 Jul '14

17 Jul '14

Hi, while I was working on Bug 1097022 - ovirt-engine-setup: weak default passwords for PostgreSQL database users I was wondering where to write hardening tips described in comment #18. It looks like we don't have any page on oVirt wiki about hardening. Anyone interested in contributing to such page? I guess it can be created as http://www.ovirt.org/OVirt_Hardening_Guide Thoughts? -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

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Update on UI column sort infra issues
by Vojtech Szocs 08 Jul '14

08 Jul '14

Hi guys, just a quick update on issues related to UI column sort infra. The client-side sorting fix [1] is now merged in master branch. The server-side sorting fix [2] is pending review. Also note that Lior merged a patch [3] which greatly simplifies code when making text-based columns *client-side* sortable, for example: TextColumnWithTooltip<SomeEntity> nameColumn = ... instead of this: // for text-based columns, need to provide separate Comparator // that (typically) uses LexoNumericComparator for comparison nameColumn.makeSortable(someEntityPropertyComparator); you can do this: // uses LexoNumericComparator to compare column's text values nameColumn.makeSortable(); -- [1] http://gerrit.ovirt.org/#/c/28392/ ... where items would disappear from grid when activating client-side column sorting [2] http://gerrit.ovirt.org/#/c/28557/ ... where triggering server-side sorting on a given column might corrupt the actual search query dispatched by the model [3] http://gerrit.ovirt.org/#/c/28670/ -- Regards, Vojtech

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oVirt.js GWT wrapper prototype
by Vojtech Szocs 08 Jul '14

08 Jul '14

------=_Part_26595393_401944553.1403609366320 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hello everyone, following the announcement of oVirt.js prototype, I've developed a sample GWT wrapper that provides Java API to oVirt.js for all GWT applications. Please find the GWT wrapper patch attached. It bundles oVirt.js & Lo-Dash libraries via GWT module (SdkGwtWrapper) providing Java-like API based on oVirt.js. In order for WebAdmin to use oVirt.js GWT wrapper, all we have to do is add following into WebAdmin.gwt.xml (GWT module descriptor): <inherits name="org.ovirt.engine.sdk.gwt.SdkGwtWrapper" /> and add following into pom.xml (Maven project descriptor): <dependency> <groupId>${engine.groupId}</groupId> <artifactId>ovirt-js-gwt-wrapper</artifactId> <version>${engine.version}</version> <scope>provided</scope> </dependency> and that's it. The Java API takes inspiration from oVirt.js API. For example, to add new DataCenter: // Create data object template, 'name' and 'local' are required. DataCenterTemplate dcTemplate = DataCenterTemplate.create( "test-dc", // name false // local ); // Set optional parameters such as 'description', if necessary. dcTemplate.setDescription("my-desc"); // Obtain DataCenter resource collection. ResourceCollection<DataCenter> dcColl = Sdk.get().api().getDataCenters(); // Add new DataCenter by running 'add' operation on 'dcColl'. dcColl.add(dcTemplate).success(new SuccessCallback<DataCenter>() { @Override public void onSuccess(DataCenter dc) { Window.alert("Added: " + dc.getName()); } }).run(); The concept of resource, resource collection and operation is the same as presented in oVirt.js. dc.setName("test-dc-updated"); dc.setDescription("test") dc.update().run(); // we could register 'success' callback here You can see the full example by looking at SdkGwtWrapperTest class, located in WebAdmin codebase (org.ovirt.engine.ui.webadmin.sdk_test). Note that 'DataCenter' and 'DataCenterTemplate' will probably be auto-generated from oVirt Engine REST API definition (XSD/RSDL). As mentioned in my previous email, oVirt.js GWT wrapper ("overlay") can be initially part of ovirt-engine repo, while oVirt.js project deserves (in my opinion) a separate repo on its own. 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2 2

Github Repositories
by Saggi Mizrahi 02 Jul '14

02 Jul '14

We are moving all ovirt stuff from my own user to the newly created ovirt-infra group on github. Update your git remotes! https://github.com/ovirt-infra

9 10

[ANN] oVirt 3.5.0 Second Alpha is now available for testing
by Sandro Bonazzola 01 Jul '14

01 Jul '14

The oVirt team is pleased to announce that the 3.5.0 Second Alpha is now available for testing. Feel free to join us testing it! You'll find all needed info for installing it on the release notes page, already available on the wiki [1]. A new oVirt Live iso is already available for testing[2] including all available updates from CentOS. An oVirt Guest Tools iso is now available too[3]. A new oVirt Node build will be available soon as well. Please note that mirrors will need a couple of days before being synchronized. If you want to be sure to use latest rpms and don't want to wait for the mirrors, you can edit /etc/yum.repos.d/ovirt-3.5.repo commenting the mirror line and removing the comment on baseurl line. Known Issues You can't add hosts to 3.5 clusters until a new VDSM build with 3.5 compatibility level will be released (All in One won't work). [1] http://www.ovirt.org/OVirt_3.5_Release_Notes [2] http://resources.ovirt.org/pub/ovirt-3.5-pre/iso/ovirt-live-el6-3.5.0-alpha… [3] http://resources.ovirt.org/pub/ovirt-3.5-pre/iso/ovirt-guest-tools/ovirt-gu… -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

3 2

[vdsm] Infrastructure design for node (host) devices
by Martin Polednik 01 Jul '14

01 Jul '14

Hello, I'm actively working on getting host device passthrough (pci, usb and scsi) exposed in VDSM, but I've encountered growing complexity of this feature. The devices are currently created in the same manner as virtual devices and their reporting is done via hostDevices list in getCaps. As I implemented usb and scsi devices, the size of this list grew almost twice - and that is on a laptop. Similar problem is with the devices themselves, they are closely tied to host and currently, engine would have to keep their mapping to VMs, reattach back loose devices and handle all of this in case of migration. I would like to hear your opinion on building something like host device pool in VDSM. The pool would be populated and periodically updated (to handle hot(un)plugs) and VMs/engine could query it for free/assigned/possibly problematic devices (which could be reattached by the pool). This has added benefit of requiring fewer libvirt calls, but a bit more complexity and possibly one thread. The persistence of the pool on VDSM restart could be kept in config or constructed from XML. I'd need new API verbs to allow engine to communicate with the pool, possibly leaving caps as they are and engine could detect the presence of newer vdsm by presence of these API verbs. The vmCreate call would remain almost the same, only with the addition of new device for VMs (where the detach and tracking routine would be communicated with the pool).

5 6

[ANN] oVirt 3.5 Test Day - Tomorrow Jul 1st
by Yedidyah Bar David 30 Jun '14

30 Jun '14

Hi all, Tomorrow Jul 1st we'll have oVirt 3.5.0 test day. On this day all relevant engineers will be online ready to support any issues you find during install / operating this new release. Just make sure you have 1 host or more to test drive the new release. If you're curious to see how it works, this is your chance. Thanks again for everyone who will join us tomorrow! Location #ovirt irc channel Please communicate here to allow others to see any issues What In this test day you have a license to kill ;) Follow the documentation to setup your environment, and test drive the new features. Please remember we expect to see some issues, and anything you come up with will save you when you'll install final release Remember to try daily tasks you'd usually do in the engine, to see there are no regressions. Write down the configuration you used (HW, console, etc) in the report etherpad[1]. Documentation Release notes: http://www.ovirt.org/OVirt_3.4.0_release_notes Features pages links: http://bit.ly/17qBn6F If you find errors in the wiki please annotate it as well in report etherpad [1] Prerequisites / recommendations Use CentOS or RHEL 6.5 only. 6.4 is unsupported due to various issues (sanlock, libvirt, etc). Use Fedora 19 or 20. Latest RPMs repository to be enabled for testing the release are listed in the release notes page [2]. NEW issues / reports For any new issue, please update the reports etherpad [1] Feature owners, please make sure: your feature is updated and referenced on release page [2]. you have testing instruction for your feature either on test day page [3] or in your feature page. your team regression testing section is organized and up to date on test day page [3]. [1] http://etherpad.ovirt.org/p/3.5-testday-1 [2] http://www.ovirt.org/OVirt_3.5_Release_Notes [3] http://www.ovirt.org/OVirt_3.5_TestDay Thanks. -- Yedidyah Bar David, RHEV Integration team

1 1

ovirt-3.5 test day: Package oVirt windows guest tools ISO and put it in ovirt repositories
by Einav Cohen 30 Jun '14

30 Jun '14

------=_Part_539285_2013995182.1404136603229 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hi Lev, I am assigned to test the feature in $subject as part of the ovirt-3.5 test day. it says in [1] to "Talk to Lev" (attached). So I'm talking :) - in the BZ [2] description, it mentions that it would be nice to (a) have the windows guest tools ISO pre-populated in the ISO domain, but as a first step - (b) virtio-win should be RPM packaged and put it in ovirt (yum?) repositories. IIUC - neither (a) nor (b) were done - the ISO was simply put in resources.ovirt.org (not RPM packaged or anything like that) - correct? - which ISO should I use for the test-day? the one that appears in comment #5 in [2] as "master"? "3.5.0 pre release"? something else? - any particular windows versions that I should test (or, should NOT test)? - anything else that I should know about this feature? anything in particular that I should focus on? ---- Regards, Einav [1] https://docs.google.com/spreadsheet/ccc?key=0AuAtmJW_VMCRdHJ6N1M3d1F1UTJTS1… [2] Bug 1026930 - OVIRT35 - [RFE] Package oVirt windows guest tools ISO and put it in ovirt repositories [https://bugzilla.redhat.com/show_bug.cgi?id=1026930] ------=_Part_539285_2013995182.1404136603229 Content-Type: image/png; name=TalkToLev.png Content-Disposition: attachment; filename=TalkToLev.png Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAABKUAAAB6CAYAAABumuCiAAAABHNCSVQICAgIfAhkiAAAAAlwSFlz AAAOxAAADsQBlSsOGwAAIABJREFUeJzsvXtcVNX+//8e4iIwisAM3k6pSKKiKagf8wqKpih2vJRp mtZRux/rWKapKZapafVVHydvqKdCOIri+ZTlOR4ruj40xI7ZKUX9kIogN7nMIHd5/f7wN7uZzd5r 9gwDGLyfj8d+MHvWXuv9Xu/3e73XmsWePVRUVARnj+vXr+Ppp5/Grl27pPe++uorREVF4b777sPG 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scale & hooks
by Michal Skrivanek 30 Jun '14

30 Jun '14

Hi, just thinking about the recent stats hook[1] by Dima and scale, It is a very nice hook and quite useful for the scale testing - ( though when focus is on engine I'd suggest to use FakeVDSM instead to eliminate all the bottlenecks on VDSM side.) One issue I see - since this is a very high-profile call, every 15s time number of VMs - is with the hook invocation. Currently the hook mechanism always go through the hooks dit and does stat() call to see script is there or not… it certainly doesn't matter on small scale but when the system is on the edge every IO on local FS cost something…. Would be nice if the hook mechanism is enhanced in general, figure out which hooks are relevant only at the startup and don't waste time passing domainXML every single time when the hook is not there Thanks, michal [1] http://gerrit.ovirt.org/#/c/25927/

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