[ovirt-devel] [ovirt-users] OVIRT-3.5-TEST-DAY-3: replace XML-rpc with JSON-rpc

[Adam Litke]

On 17/09/14 15:46 -0400, Francesco Romani wrote:
>----- Original Message -----
>> From: "Francesco Romani" <fromani at redhat.com>
>> To: devel at ovirt.org
>> Cc: "users" <users at ovirt.org>
>> Sent: Wednesday, September 17, 2014 5:33:01 PM
>> Subject: [ovirt-users] OVIRT-3.5-TEST-DAY-3: replace XML-rpc with JSON-rpc
>
>> Everything I tried went OK, and logs look good to me.
>>
>> I run in a few hiccups, which I mention for the sake of completeness:
>> - VDSM refused to start or run VMs initially: libvirt config included relics
>> from past
>>   environment on the same box, not JSON-rpc fault. Fixed with new config and
>>   (later) a reboot.
>> - Trying recovery, Engine took longer than expected to sync up with VDSM.
>>   I have not hard data and feeling is not enough to file a BZ, so I didn't.
>> - Still trying recovery, one and just one time Engine had stale data from
>> VDSM (reported two
>>   VMs as present which actually aren't). Not sure it was related to JSON-rpc,
>>   can't reproduce,
>>   so not filed a BZ.
>
>I need to partially amend this statement as, running more benchmarks/profiling,
>I got this twice in a row
>
>INFO:root:starting 100 vms
>INFO:root:start: serial execution
>INFO:root:Starting VM: XS_C000
>INFO:root:Starting VM: XS_C001
>INFO:root:Starting VM: XS_C002
>
>Traceback (most recent call last):
>  File "./observe.py", line 154, in <module>
>    data = bench(host, 'XS_C%03i', first, last, api, outfile, mins * 60.)
>  File "./observe.py", line 122, in bench
>    start(vms)
>  File "./observe.py", line 66, in start
>    vm.start()
>  File "./observe.py", line 54, in start
>    self._handle.start()
>  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/brokers.py", line 16507, in start
>    headers={"Correlation-Id":correlation_id}
>  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 118, in request
>    persistent_auth=self._persistent_auth)
>  File "/usr/lib/python2.7/site-packages/ovirtsdk/infrastructure/proxy.py", line 140, in __doRequest
>    persistent_auth=persistent_auth
>  File "/usr/lib/python2.7/site-packages/ovirtsdk/web/connection.py", line 134, in doRequest
>    raise RequestError, response
>ovirtsdk.infrastructure.errors.RequestError:
>status: 400
>reason: Bad Request
>detail: Network error during communication with the Host.
>
>(this is a runner script using ovirt sdk for python, source is available on demand and will be
>published anyway soon[ish])
>
>On engine logs I see something alike this: http://fpaste.org/134263/
>
>Since the above is way too vague to file a meaningful BZ, I'm now continuing the investigation
>to see if there is a bug somewhere or if it's a hiccup of my local environment.

I just want to note that I have been experiencing vague, intermittent
jsonRPC issues with my environment also.  I have filed 1143042 which I
believe to be a symptom of unreliable communication.  It seems to me
that we have a definite problem to work out.

-- 
Adam Litke