- Devel - oVirt List Archives

No more "vds group" in master code , instead please use "cluster"
by Eli Mesika 17 Jan '16

17 Jan '16

Hi I have merged today this patch[1] to master. The code from historical reasons uses both "vds group" and "cluster" for a cluster entity. This makes the code not-clear, non-readable and hard for beginners (to find for example SPs that handle clusters , or all code related to a cluster operation) This also makes our logging and error messages using sometimes "vds group" and sometimes "cluster" to relate to the same entity. Worse than that, new code written sometimes introduce a mix of both terms. Patch[1] renames "vds group" to cluster all over the code. This renaming covers all engine code including Class names Variables Comments Logging Error messages Database tables,views, columns and SPs including all kinds of keys and constrains Please do not use from now on the term "vds group" (all its variants (VdsGroup, vdsGroup, vds_group etc.) Instead , cluster and all its variants should be used If you have some written code that is not merged yet, you will probably have a little work on rebase on top this patch, as far as I know those should be trivial patches and if you have any question, please ask. Possible affects on other products are minor and were communicated to the relevant product people. [1] https://gerrit.ovirt.org/#/c/51109/ Thanks Eli Mesika

4 7

Re: [ovirt-devel] Actively triggering of CI jobs
by Barak Korren 15 Jan '16

15 Jan '16

>>> > [1]: http://www.ovirt.org/CI/Build_and_test_standards >>> > > > That's nice, but most of us are not aware of all that.. > Well, we can do a better job advocating that, I try to mention this almost in any infra/devel thread where 'CI' is mentioned. I'm open to suggestions about how to make developers more aware of the fact that the ultimate power to determine what happens in CI had mostly been placed in their hands... > > From what I'm seeing, most of the developers here don't make their patches > drafts.. moreover, > - personally I didn't even know that it will not trigger jobs if it is a > draft. (and I'm not the only one) We, now you know... Adding 'devel' with hope more devs will read this. > - sometimes I need to label my patches, therefor can't make it a draft > By 'label' you mean set topic? Not sure those are mutually exclusive, 'git review' options seem to indicate they are not. I will look deeper into that. > nowadays we are waiting for the jobs too much to finish. and the reality is > that too much jobs shouldn't run at all- despite all of the nice things you > guys show here.. I which cases besides the patch not being "ready" (=draft...) should jobs not run? > > I still think that it will be a better solution to force the developer to > activate the tests manually (by adding a flag when pushing or even doing it > with the jenkins client..) > We tried to add the 'workflow' flag for that at some point (It is used by most infra projects), but it was not accepted with any enthusiasm by the devs, you can search back the discussion on 'devel'. -- Barak Korren bkorren(a)redhat.com RHEV-CI Team

3 4

[VDSM] health: Introduce Vdsm health monitoring
by Nir Soffer 15 Jan '16

15 Jan '16

Hi all, Continuing the leak investigation Francesco and Milan are working on, I posted this patch, adding leak health monitoring to vdsm [1]. This patch currently monitor collectible objects, and we may add other interesting stuff later if needed. To enable the monitor, you must set: [devel] health_monitor_enable = true In vdsm.conf, and restart vdsm. Here is an example logs - this was logged 60 seconds after starting vdsm, when running as spm: Thread-13::DEBUG::2016-01-14 18:53:43,239::health::84::health::(_check) Checking health Thread-13::DEBUG::2016-01-14 18:53:43,272::health::86::health::(_check) Collected 460 objects Thread-13::WARNING::2016-01-14 18:53:43,277::health::100::health::(_check) Found 5873 uncollectible objects, 10 suspects implementing __del__: ['<pthreading.Lock object at 0x7f012c115320>', '<pthreading.Lock object at 0x7f012c115440>', '<pthreading.Lock object at 0x7f012c1153b0>', '<pthreading.Lock object at 0x7f012c1154d0>', '<pthread.Cond object at 0x7f012c111350>', '<pthread.Cond object at 0x7f012c1112d0>', '<pthread.Cond object at 0x7f012c111250>', '<pthread.Cond object at 0x7f012c111850>', '<pthread.Cond object at 0x7f012c1117d0>', '<pthread.Cond object at 0x7f012c111750>'] We found 460 uncollectible objects, 10 of them are objects implementing __del__. Having such object in a reference cycle make the entire cycle uncollectible. The pthreading objects in this log grow as vdsm continue to run, even without any interaction with engine. The pthreading objects leak is caused by a cycle in storage.misc.RWLock, fixed in patch [2]. After solving the pthreading leak, we still have many uncollectible objects in the logs, listing them, it seems that the suspect is hiding inside a collection (dict, list, tuple) and does not appear in the gc.garbage list. I will address this in later patch, searching in the entire object graph instead of the top level of gc.garbage. See end of this mail for list of these objects. I printed them like this: Enable manhole debugging shell: [devel] manhole_enable = true Connect to vdsm using manhole: nc -U /run/vdsm/vdsmd.manhole Print garbage: >>> import pprint >>> import gc >>> with open('/tmp/garbage.txt', 'w') as f: pprint.pprint(gc.garbage, stream=f, indent=4) These objects looks related to libvirt - Francesco, can you take a look? [1] https://gerrit.ovirt.org/51708 [2] https://gerrit.ovirt.org/51868 Nir --- garbage after patch [2] --- [ (<type '_ctypes.Array'>,), { '__dict__': <attribute '__dict__' of 'c_char_Array_60' objects>, '__doc__': None, '__module__': 'vdsm.netlink', '__weakref__': <attribute '__weakref__' of 'c_char_Array_60' objects>, '_length_': 60, '_type_': <class 'ctypes.c_char'>, 'raw': <attribute 'raw' of 'c_char_Array_60' objects>, 'value': <attribute 'value' of 'c_char_Array_60' objects>}, <class 'vdsm.netlink.c_char_Array_60'>, <attribute '__dict__' of 'c_char_Array_60' objects>, <attribute '__weakref__' of 'c_char_Array_60' objects>, ( <class 'vdsm.netlink.c_char_Array_60'>, <type '_ctypes.Array'>, <type '_ctypes._CData'>, <type 'object'>), <attribute 'raw' of 'c_char_Array_60' objects>, <attribute 'value' of 'c_char_Array_60' objects>, <cell at 0x23662f0: bool object at 0x7f1e086c8c40>, <cell at 0x2366328: NoneType object at 0x7f1e086dcf00>, <cell at 0x2366360: function object at 0x233f488>, 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'machine', 'tail': '\n ', 'text': 'rhel6.2.0'}, [], <Element 'domain' at 0x2369ad0>, { '_children': [], 'attrib': { 'type': 'qemu'}, 'tag': 'domain', 'tail': '\n '}, [], <Element 'domain' at 0x2369b10>, { '_children': [<Element 'emulator' at 0x2369b50>], 'attrib': { 'type': 'kvm'}, 'tag': 'domain', 'tail': '\n ', 'text': '\n '}, [<Element 'emulator' at 0x2369b50>], <Element 'emulator' at 0x2369b50>, { '_children': [], 'attrib': { }, 'tag': 'emulator', 'tail': '\n ', 'text': '/usr/libexec/qemu-kvm'}, [], <Element 'features' at 0x2369bd0>, { '_children': [ <Element 'cpuselection' at 0x2369c10>, <Element 'deviceboot' at 0x2369c50>, <Element 'disksnapshot' at 0x2369c90>, <Element 'acpi' at 0x2369cd0>, <Element 'apic' at 0x2369d10>], 'attrib': { }, 'tag': 'features', 'tail': '\n ', 'text': '\n '}, [ <Element 'cpuselection' at 0x2369c10>, <Element 'deviceboot' at 0x2369c50>, <Element 'disksnapshot' at 0x2369c90>, <Element 'acpi' at 0x2369cd0>, <Element 'apic' at 0x2369d10>], <Element 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<Element 'memory' at 0x2364710>, <Element 'pages' at 0x2364750>, <Element 'pages' at 0x2364790>, <Element 'distances' at 0x23647d0>, <Element 'cpus' at 0x2364850>], 'attrib': { 'id': '0'}, 'tag': 'cell', 'tail': '\n ', 'text': '\n '}, { '_children': [<Element 'cell' at 0x23646d0>], 'attrib': { 'num': '1'}, 'tag': 'cells', 'tail': '\n ', 'text': '\n '}, { '_children': [<Element 'cells' at 0x2364690>], 'attrib': { }, 'tag': 'topology', 'tail': '\n ', 'text': '\n '}, { '_children': [ <Element 'uuid' at 0x2364050>, <Element 'cpu' at 0x2364090>, <Element 'power_management' at 0x2364390>, <Element 'migration_features' at 0x23644d0>, <Element 'topology' at 0x2364650>, <Element 'secmodel' at 0x2364a90>, <Element 'secmodel' at 0x2364bd0>], 'attrib': { }, 'tag': 'host', 'tail': '\n\n ', 'text': '\n '}, { '_children': [ <Element 'host' at 0x2357fd0>, <Element 'guest' at 0x2364d10>, <Element 'guest' at 0x2369590>], 'attrib': { }, 'tag': 'capabilities', 'text': '\n\n '}, [ <Element 'memory' at 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at 0x2364490>], 'attrib': { }, 'tag': 'power_management', 'tail': '\n ', 'text': '\n '}, { '_children': [ <Element 'arch' at 0x23640d0>, <Element 'model' at 0x2364110>, <Element 'vendor' at 0x2364150>, <Element 'topology' at 0x2364190>, <Element 'feature' at 0x23641d0>, <Element 'feature' at 0x2364210>, <Element 'feature' at 0x2364250>, <Element 'feature' at 0x2364290>, <Element 'feature' at 0x23642d0>, <Element 'pages' at 0x2364310>, <Element 'pages' at 0x2364350>], 'attrib': { }, 'tag': 'cpu', 'tail': '\n ', 'text': '\n '}, { '_children': [], 'attrib': { }, 'tag': 'uuid', 'tail': '\n ', 'text': 'a920d963-c18f-4fda-aa5a-deee9bbcde9d'}, [<Element 'live' at 0x2364510>, <Element 'uri_transports' at 0x2364590>], [ <Element 'suspend_mem' at 0x23643d0>, <Element 'suspend_disk' at 0x2364410>, <Element 'suspend_hybrid' at 0x2364490>], [ <Element 'arch' at 0x23640d0>, <Element 'model' at 0x2364110>, <Element 'vendor' at 0x2364150>, <Element 'topology' at 0x2364190>, <Element 'feature' at 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'\n '}, { '_children': [], 'attrib': { }, 'tag': 'suspend_hybrid', 'tail': '\n '}, { '_children': [], 'attrib': { }, 'tag': 'suspend_disk', 'tail': '\n '}, { '_children': [], 'attrib': { }, 'tag': 'suspend_mem', 'tail': '\n '}, { '_children': [], 'attrib': { 'size': '2048', 'unit': 'KiB'}, 'tag': 'pages', 'tail': '\n '}, { '_children': [], 'attrib': { 'size': '4', 'unit': 'KiB'}, 'tag': 'pages', 'tail': '\n '}, { '_children': [], 'attrib': { 'name': 'ss'}, 'tag': 'feature', 'tail': '\n '}, { '_children': [], 'attrib': { 'name': 'vmx'}, 'tag': 'feature', 'tail': '\n '}, { '_children': [], 'attrib': { 'name': 'pcid'}, 'tag': 'feature', 'tail': '\n '}, { '_children': [], 'attrib': { 'name': 'osxsave'}, 'tag': 'feature', 'tail': '\n '}, { '_children': [], 'attrib': { 'name': 'hypervisor'}, 'tag': 'feature', 'tail': '\n '}, { '_children': [], 'attrib': { 'cores': '1', 'sockets': '8', 'threads': '1'}, 'tag': 'topology', 'tail': '\n '}, { '_children': [], 'attrib': { }, 'tag': 'vendor', 'tail': '\n ', 'text': 'Intel'}, { '_children': [], 'attrib': { }, 'tag': 'model', 'tail': '\n ', 'text': 'IvyBridge'}, { '_children': [], 'attrib': { }, 'tag': 'arch', 'tail': '\n ', 'text': 'x86_64'}, [ <Element 'uri_transport' at 0x23645d0>, <Element 'uri_transport' at 0x2364610>], [], [], [], [], [], [], [], [], [], [], [], [], [], [], [], <Element 'uri_transport' at 0x2364610>, <Element 'uri_transport' at 0x23645d0>, { '_children': [], 'attrib': { }, 'tag': 'uri_transport', 'tail': '\n ', 'text': 'rdma'}, { '_children': [], 'attrib': { }, 'tag': 'uri_transport', 'tail': '\n ', 'text': 'tcp'}, [], [], (<type '_ctypes.Array'>,), { '__dict__': <attribute '__dict__' of 'c_char_Array_60' objects>, '__doc__': None, '__module__': 'vdsm.netlink', '__weakref__': <attribute '__weakref__' of 'c_char_Array_60' objects>, '_length_': 60, '_type_': <class 'ctypes.c_char'>, 'raw': <attribute 'raw' of 'c_char_Array_60' objects>, 'value': <attribute 'value' of 'c_char_Array_60' objects>}, <class 'vdsm.netlink.c_char_Array_60'>, <attribute '__dict__' of 'c_char_Array_60' objects>, <attribute '__weakref__' of 'c_char_Array_60' objects>, ( <class 'vdsm.netlink.c_char_Array_60'>, <type '_ctypes.Array'>, <type '_ctypes._CData'>, <type 'object'>), <attribute 'raw' of 'c_char_Array_60' objects>, <attribute 'value' of 'c_char_Array_60' objects>]

3 6

VARIANT_ID usage - with our without oVirt version?
by Fabian Deutsch 15 Jan '16

15 Jan '16

Hey, we've now merged a patch [0] to use and populate the VARIANT and VARIANT_ID fields on Node. Currently the value is something like "ovirt-node-$BRANCH", i.e. "ovirt-node-master" or "ovirt-node-3.6". I'd like to question if we should include the oVirt version in the ID, or if we should just use "ovirt-node" without the version. >From my POV the variant is not depending on a specific version, that is why I'd like to discuss it. The oVirt version can still be retieved like on any other host i.e. using rpm or maybe some file(?). - fabian -- [0] https://gerrit.ovirt.org/gitweb?p=ovirt-release.git;a=blob;f=ovirt-release-… [1] http://www.freedesktop.org/software/systemd/man/os-release.html

3 4

findbugs on network code
by Michal Skrivanek 15 Jan '16

15 Jan '16

somehow findbugs started to fail[1] on network code any idea why? Thanks, michal [1] http://jenkins.ovirt.org/job/ovirt-engine_master_find-bugs_gerrit/43304/fin…

3 2

vdsm_master_unit-tests_merged is failing
by Sandro Bonazzola 14 Jan '16

14 Jan '16

http://jenkins.ovirt.org/job/vdsm_master_unit-tests_merged/1155/consoleFull is failing. Looks like python3-nose is not installed inside the mock chroot. *23:51:01* if [ -x "/usr/bin/python3" ]; then \*23:51:01* PYTHON_EXE="/usr/bin/python3" ../tests/run_tests_local.sh \*23:51:01* apiData.py cmdutilsTests.py cpuProfileTests.py ; \*23:51:01* fi*23:51:01* Traceback (most recent call last):*23:51:01* File "../tests/testrunner.py", line 42, in <module>*23:51:01* import testlib*23:51:01* File "/tmp/run/vdsm/tests/testlib.py", line 38, in <module>*23:51:01* from nose import config*23:51:01* ImportError: No module named 'nose'*23:51:01* Makefile:1162: recipe for target 'check-local' failed*23:51:01* make[3]: *** [check-local] Error 1*23:51:01* make[3]: Leaving directory '/tmp/run/vdsm/tests' Please fix ASAP -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

5 12

Summary for Vdsm sync 12.1
by Yaniv Bronheim 13 Jan '16

13 Jan '16

(edwad, nsoffer, pkliczew, alitke, fromani, ybronhei) Python3 current work and gaps - https://docs.google.com/a/redhat.com/spreadsheets/d/180F-C1jU54ajUn7TuR-Nwr… Current main gaps are the removal of deathSignal to unify cpopen api to standard Popen api, and AsyncProc which uses StringIO internal attributes which don't exist in six's stringIO . because of those two we can't import commands.py which most of the tests use. Jsonrpc client - we need to close gaps before disabling xmlrpc client - Pioter can add more words about the gaps that we currently have. Testing new storage verbs without engine - by such client ^ is a must- https://gerrit.ovirt.org/#/c/35181/6/contrib/jsonrpc basically when we finish with that we'll be able to remove vdsClient Francesco sent as update about virt items - https://www.mail-archive.com/devel@ovirt.org/msg04976.html New leak was exposed in vdsm - fromani will elaborate more once finding the exact location. Nir suggested https://gerrit.ovirt.org/#/c/51708/ to see the status of the gc and gather more internal information about the current vdsm instance - this can help to debug remotely without changing the code. -- *Yaniv Bronhaim.*

3 2

[ANN] oVirt 3.6.2 Second Release Candidate is now available for testing
by Sandro Bonazzola 13 Jan '16

13 Jan '16

The oVirt Project is pleased to announce the availability of the Second Release Candidate of oVirt 3.6.2 for testing, as of January 13th, 2016 This release is available now for Fedora 22, Red Hat Enterprise Linux 6.7, CentOS Linux 6.7 (or similar) and Red Hat Enterprise Linux >= 7.2, CentOS Linux >= 7.2 (or similar). This release supports Hypervisor Hosts running Red Hat Enterprise Linux >= 7.2, CentOS Linux >= 7.2 (or similar) and Fedora 22. Highly experimental support for Debian 8.2 Jessie has been added too. This release candidate includes updated packages for: - ovirt-engine - ovirt-engine-reports - ovirt-engine-sdk-python - ovirt-hosted-engine-setup - ovirt-hosted-engine-ha - ovirt-engine-extension-aaa-jdbc - vdsm - vdsm-json-rpc This release of oVirt 3.6.2 includes numerous bug fixes. See the release notes [1] for an initial list of the new features and bugs fixed. Please refer to release notes [1] for Installation / Upgrade instructions. A new oVirt Live ISO will be soon available [2]. Please note that mirrors[3] may need usually one day before being synchronized. * Read more about the oVirt 3.6.2 release highlights: http://www.ovirt.org/OVirt_3.6.2_Release_Notes * Get more oVirt Project updates on Twitter: https://twitter.com/ovirt * Read more about oVirt Project community events: http://www.ovirt.org/Upcoming_events [1] http://www.ovirt.org/OVirt_3.6.2_Release_Notes [2] http://resources.ovirt.org/pub/ovirt-3.6-pre/iso/ [3] http://www.ovirt.org/Repository_mirrors#Current_mirrors -- Sandro Bonazzola Better technology. Faster innovation. Powered by community collaboration. See how it works at redhat.com

1 0

oVirt Node Upgrade Design
by Fabian Deutsch 13 Jan '16

13 Jan '16

Hey, Douglas and I have been discussing how the oVirt Node upgrade can work in future with Node Next. The most obvious change is that upgrades will be delivered directly Node. Previously they've been pushed to Node by Engine. The updates will stay to be delivered in an rpm through yum repositories, this will allow us to leverage all tooling around repos, rpm and yum. The most notable user facing benefit is, that our goal is to update Node Next by calling $ yum update Note: This will update Node in an image fashion, and will not just update the packages. Please review our design document here: http://www.ovirt.org/Node/4.0/Update - fabian

1 0

TransactionSupport during command validation
by Tomer Saban 13 Jan '16

13 Jan '16

Hi, I wanted to draw your attention to something I found out while fixing a bug involving the use of transactions in commands. When calling a command using getBackend().runAction() when another transaction is open, by default the command will become part of the open transaction because by default CommandBase specifies TransactionScopeOption.Required as the default 'scope'. Unfortunately, validation function(formerly CanDoAction()) will not be aware of the opened transaction. This get be problematic in cases where the validation() method check things that are fixed in the opened transaction and not committed yet. For example, In my case I'm using the AddVdsGroupCommand which creates a new cluster (In an open tranasction) and then, calls the AddCpuProfileCommand which creates a default cpu profile. The default cpu profile validation() check then, Check if the cluster exists which fails because it's not part of the opened transaction. They way to over come this is to add the validation() method to the open transaction by adding @ValidateSupportsTransaction annotation on the command. The associated part of the code in CommandBase(line 817) : """ if (!isValidateSupportsTransaction()) { transaction = TransactionSupport.suspend(); } """ isValidateSupportsTransaction() - Checks that the annotation exists and if it's not it suspends the TransactionSupport. FYI, Tomer

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