On Fri, Nov 22, 2019 at 5:54 PM Dominik Holler <[email protected]> wrote:

>
>
> On Fri, Nov 22, 2019 at 5:48 PM Nir Soffer <[email protected]> wrote:
>
>>
>>
>> On Fri, Nov 22, 2019, 18:18 Marcin Sobczyk <[email protected]> wrote:
>>
>>>
>>>
>>> On 11/22/19 4:54 PM, Martin Perina wrote:
>>>
>>>
>>>
>>> On Fri, Nov 22, 2019 at 4:43 PM Dominik Holler <[email protected]>
>>> wrote:
>>>
>>>>
>>>> On Fri, Nov 22, 2019 at 12:17 PM Dominik Holler <[email protected]>
>>>> wrote:
>>>>
>>>>>
>>>>>
>>>>> On Fri, Nov 22, 2019 at 12:00 PM Miguel Duarte de Mora Barroso <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> On Fri, Nov 22, 2019 at 11:54 AM Vojtech Juranek <[email protected]>
>>>>>> wrote:
>>>>>> >
>>>>>> > On pátek 22. listopadu 2019 9:56:56 CET Miguel Duarte de Mora
>>>>>> Barroso wrote:
>>>>>> > > On Fri, Nov 22, 2019 at 9:49 AM Vojtech Juranek <
>>>>>> [email protected]>
>>>>>> > > wrote:
>>>>>> > > >
>>>>>> > > >
>>>>>> > > > On pátek 22. listopadu 2019 9:41:26 CET Dominik Holler wrote:
>>>>>> > > >
>>>>>> > > > > On Fri, Nov 22, 2019 at 8:40 AM Dominik Holler <
>>>>>> [email protected]>
>>>>>> > > > > wrote:
>>>>>> > > > >
>>>>>> > > > > > On Thu, Nov 21, 2019 at 10:54 PM Nir Soffer <
>>>>>> [email protected]>
>>>>>> > > > > > wrote:
>>>>>> > > > > >
>>>>>> > > > > >> On Thu, Nov 21, 2019 at 11:24 PM Vojtech Juranek
>>>>>> > > > > >> <[email protected]>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> wrote:
>>>>>> > > > > >>
>>>>>> > > > > >> > Hi,
>>>>>> > > > > >> > OST fails (see e.g. [1]) in
>>>>>> 002_bootstrap.check_update_host. It
>>>>>> > > > > >> > fails
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> with
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> >  FAILED! => {"changed": false, "failures": [], "msg":
>>>>>> "Depsolve
>>>>>> > > > > >> >  Error
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> occured:
>>>>>> > > > > >>
>>>>>> > > > > >> > \n Problem 1: cannot install the best update candidate
>>>>>> for package
>>>>>> > > > > >> > vdsm-
>>>>>> > > > > >> > network-4.40.0-1236.git63ea8cb8b.el8.x86_64\n  - nothing
>>>>>> provides
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> nmstate
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> > needed by
>>>>>> vdsm-network-4.40.0-1271.git524e08c8a.el8.x86_64\n
>>>>>> > > > > >> > Problem 2:
>>>>>> > > > > >> > package vdsm-python-4.40.0-1271.git524e08c8a.el8.noarch
>>>>>> requires
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> vdsm-network
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> > = 4.40.0-1271.git524e08c8a.el8, but none of the
>>>>>> providers can be
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> installed\n
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> > - cannot install the best update candidate for package
>>>>>> vdsm-
>>>>>> > > > > >> > python-4.40.0-1236.git63ea8cb8b.el8.noarch\n  - nothing
>>>>>> provides
>>>>>> > > > > >> > nmstate
>>>>>> > > > > >> > needed by
>>>>>> vdsm-network-4.40.0-1271.git524e08c8a.el8.x86_64\n
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> nmstate should be provided by copr repo enabled by
>>>>>> > > > > >> ovirt-release-master.
>>>>>> > > > > >
>>>>>> > > > > >
>>>>>> > > > > >
>>>>>> > > > > > I re-triggered as
>>>>>> > > > > >
>>>>>> https://jenkins.ovirt.org/job/ovirt-system-tests_manual/6131
>>>>>> > > > > > maybe
>>>>>> > > > > > https://gerrit.ovirt.org/#/c/104825/
>>>>>> > > > > > was missing
>>>>>> > > > >
>>>>>> > > > >
>>>>>> > > > >
>>>>>> > > > > Looks like
>>>>>> > > > > https://gerrit.ovirt.org/#/c/104825/ is ignored by OST.
>>>>>> > > >
>>>>>> > > >
>>>>>> > > >
>>>>>> > > > maybe not. You re-triggered with [1], which really missed this
>>>>>> patch.
>>>>>> > > > I did a rebase and now running with this patch in build #6132
>>>>>> [2]. Let's
>>>>>> > > > wait
>>>>>> >  for it to see if gerrit #104825 helps.
>>>>>> > > >
>>>>>> > > >
>>>>>> > > >
>>>>>> > > > [1] https://jenkins.ovirt.org/job/standard-manual-runner/909/
>>>>>> > > > [2]
>>>>>> https://jenkins.ovirt.org/job/ovirt-system-tests_manual/6132/
>>>>>> > > >
>>>>>> > > >
>>>>>> > > >
>>>>>> > > > > Miguel, do you think merging
>>>>>> > > > >
>>>>>> > > > >
>>>>>> > > > >
>>>>>> > > > >
>>>>>> https://gerrit.ovirt.org/#/c/104495/15/common/yum-repos/ovirt-master-hos
>>>>>> > > > > t-cq
>>>>>> >  .repo.in
>>>>>> > > > >
>>>>>> > > > >
>>>>>> > > > >
>>>>>> > > > > would solve this?
>>>>>> > >
>>>>>> > >
>>>>>> > > I've split the patch Dominik mentions above in two, one of them
>>>>>> adding
>>>>>> > > the nmstate / networkmanager copr repos - [3].
>>>>>> > >
>>>>>> > > Let's see if it fixes it.
>>>>>> >
>>>>>> > it fixes original issue, but OST still fails in
>>>>>> > 098_ovirt_provider_ovn.use_ovn_provider:
>>>>>> >
>>>>>> > https://jenkins.ovirt.org/job/ovirt-system-tests_manual/6134
>>>>>>
>>>>>> I think Dominik was looking into this issue; +Dominik Holler please
>>>>>> confirm.
>>>>>>
>>>>>> Let me know if you need any help Dominik.
>>>>>>
>>>>>
>>>>>
>>>>> Thanks.
>>>>> The problem is that the hosts lost connection to storage:
>>>>>
>>>>> https://jenkins.ovirt.org/job/ovirt-system-tests_manual/6134/artifact/exported-artifacts/test_logs/basic-suite-master/post-098_ovirt_provider_ovn.py/lago-basic-suite-master-host-0/_var_log/vdsm/vdsm.log
>>>>> :
>>>>>
>>>>> 2019-11-22 05:39:12,326-0500 DEBUG (jsonrpc/5) [common.commands] 
>>>>> /usr/bin/taskset --cpu-list 0-1 /usr/bin/sudo -n /sbin/lvm vgs --config 
>>>>> 'devices {  preferred_names=["^/dev/mapper/"]  ignore_suspended_devices=1 
>>>>>  write_cache_state=0  disable_after_error_count=3  
>>>>> filter=["a|^/dev/mapper/36001405107ea8b4e3ac4ddeb3e19890f$|^/dev/mapper/360014054924c91df75e41178e4b8a80c$|^/dev/mapper/3600140561c0d02829924b77ab7323f17$|^/dev/mapper/3600140582feebc04ca5409a99660dbbc$|^/dev/mapper/36001405c3c53755c13c474dada6be354$|",
>>>>>  "r|.*|"] } global {  locking_type=1  prioritise_write_locks=1  
>>>>> wait_for_locks=1  use_lvmetad=0 } backup {  retain_min=50  retain_days=0 
>>>>> }' --noheadings --units b --nosuffix --separator '|' 
>>>>> --ignoreskippedcluster -o 
>>>>> uuid,name,attr,size,free,extent_size,extent_count,free_count,tags,vg_mda_size,vg_mda_free,lv_count,pv_count,pv_name
>>>>>  (cwd None) (commands:153)
>>>>> 2019-11-22 05:39:12,415-0500 ERROR (check/loop) [storage.Monitor] Error 
>>>>> checking path 
>>>>> /rhev/data-center/mnt/192.168.200.4:_exports_nfs_share2/d10879c6-8de1-40ba-87fa-f447844eed2a/dom_md/metadata
>>>>>  (monitor:501)
>>>>> Traceback (most recent call last):
>>>>>   File "/usr/lib/python3.6/site-packages/vdsm/storage/monitor.py", line 
>>>>> 499, in _pathChecked
>>>>>     delay = result.delay()
>>>>>   File "/usr/lib/python3.6/site-packages/vdsm/storage/check.py", line 
>>>>> 391, in delay
>>>>>     raise exception.MiscFileReadException(self.path, self.rc, self.err)
>>>>> vdsm.storage.exception.MiscFileReadException: Internal file read failure: 
>>>>> ('/rhev/data-center/mnt/192.168.200.4:_exports_nfs_share2/d10879c6-8de1-40ba-87fa-f447844eed2a/dom_md/metadata',
>>>>>  1, 'Read timeout')
>>>>> 2019-11-22 05:39:12,416-0500 INFO  (check/loop) [storage.Monitor] Domain 
>>>>> d10879c6-8de1-40ba-87fa-f447844eed2a became INVALID (monitor:472)
>>>>>
>>>>>
>>>>> I failed to reproduce local to analyze this, I will try again, any
>>>>> hints welcome.
>>>>>
>>>>>
>>>>
>>>>
>>>> https://gerrit.ovirt.org/#/c/104925/1/ shows that
>>>> 008_basic_ui_sanity.py triggers the problem.
>>>> Is there someone with knowledge about the basic_ui_sanity around?
>>>>
>>> How do you think it's related? By commenting out the ui sanity tests and
>>> seeing OST with successful finish?
>>>
>>> Looking at 6134 run you were discussing:
>>>
>>>  - timing of the ui sanity set-up [1]:
>>>
>>> 11:40:20 @ Run test: 008_basic_ui_sanity.py:
>>>
>>> - timing of first encountered storage error [2]:
>>>
>>> 2019-11-22 05:39:12,415-0500 ERROR (check/loop) [storage.Monitor] Error
>>> checking path 
>>> /rhev/data-center/mnt/192.168.200.4:_exports_nfs_share2/d10879c6-8de1-40ba-87fa-f447844eed2a/dom_md/metadata
>>> (monitor:501)
>>> Traceback (most recent call last):
>>>   File "/usr/lib/python3.6/site-packages/vdsm/storage/monitor.py", line
>>> 499, in _pathChecked
>>>     delay = result.delay()
>>>   File "/usr/lib/python3.6/site-packages/vdsm/storage/check.py", line
>>> 391, in delay
>>>     raise exception.MiscFileReadException(self.path, self.rc, self.err)
>>> vdsm.storage.exception.MiscFileReadException: Internal file read
>>> failure: 
>>> ('/rhev/data-center/mnt/192.168.200.4:_exports_nfs_share2/d10879c6-8de1-40ba-87fa-f447844eed2a/dom_md/metadata',
>>> 1, 'Read timeout')
>>>
>>> Timezone difference aside, it seems to me that these storage errors
>>> occured before doing anything ui-related.
>>>
>>

You are right, a time.sleep(8*60) in
https://gerrit.ovirt.org/#/c/104925/2
has triggers the issue the same way.



> I remember talking with Steven Rosenberg on IRC a couple of days ago about
>>> some storage metadata issues and he said he got a response from Nir, that
>>> "it's a known issue".
>>>
>>> Nir, Amit, can you comment on this?
>>>
>>
>> The error mentioned here is not vdsm error but warning about storage
>> accessibility. We sould convert the tracebacks to warning.
>>
>> The reason for such issue can be misconfigured network (maybe network
>> team is testing negative flows?),
>>
>
> No.
>
>
>> or some issue in the NFS server.
>>
>>
> Only hint I found is
> "Exiting Time2Retain handler because session_reinstatement=1"
> but I have no idea what this means or if this is relevant at all.
>
>
>> One read timeout is not an issue. We have a real issue only if we have
>> consistent read timeouts or errors for couple of minutes, after that engine
>> can deactivate the storage domain or some hosts if only these hosts are
>> having trouble to access storage.
>>
>> In OST we never expect such conditions since we don't test negative
>> flows, and we should have good connectivity with the vms running on the
>> same host.
>>
>>
> Ack, this seems to be the problem.
>
>
>> Nir
>>
>>
>> [1] https://jenkins.ovirt.org/job/ovirt-system-tests_manual/6134/console
>>> [2]
>>> https://jenkins.ovirt.org/job/ovirt-system-tests_manual/6134/artifact/exported-artifacts/test_logs/basic-suite-master/post-098_ovirt_provider_ovn.py/lago-basic-suite-master-host-0/_var_log/vdsm/vdsm.log
>>>
>>>
>>>>
>>> Marcin, could you please take a look?
>>>
>>>>
>>>>
>>>>
>>>>> >
>>>>>> > > [3] - https://gerrit.ovirt.org/#/c/104897/
>>>>>> > >
>>>>>> > >
>>>>>> > > > >
>>>>>> > > > >
>>>>>> > > > > >> Who installs this rpm in OST?
>>>>>> > > > > >
>>>>>> > > > > >
>>>>>> > > > > >
>>>>>> > > > > > I do not understand the question.
>>>>>> > > > > >
>>>>>> > > > > >
>>>>>> > > > > >
>>>>>> > > > > >> > [...]
>>>>>> > > > > >> >
>>>>>> > > > > >> >
>>>>>> > > > > >> >
>>>>>> > > > > >> > See [2] for full error.
>>>>>> > > > > >> >
>>>>>> > > > > >> >
>>>>>> > > > > >> >
>>>>>> > > > > >> > Can someone please take a look?
>>>>>> > > > > >> > Thanks
>>>>>> > > > > >> > Vojta
>>>>>> > > > > >> >
>>>>>> > > > > >> >
>>>>>> > > > > >> >
>>>>>> > > > > >> > [1]
>>>>>> https://jenkins.ovirt.org/job/ovirt-system-tests_manual/6128/
>>>>>> > > > > >> > [2]
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> https://jenkins.ovirt.org/job/ovirt-system-tests_manual/6128/artifact
>>>>>> > > > > >> /
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> > exported-artifacts/test_logs/basic-suite-master/
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >> post-002_bootstrap.py/lago-
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> > > > > >>
>>>>>> basic-suite-master-engine/_var_log/ovirt-engine/engine.log___________
>>>>>> > > > > >> ____
>>>>>> > > > > >> ________________________________>>
>>>>>> > > > > >>
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>>>>>>
>>>>>>
>>>
>>> --
>>> Martin Perina
>>> Manager, Software Engineering
>>> Red Hat Czech s.r.o.
>>>
>>>
>>>
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