Re: [openstack-dev] [novaclient] invoking methods on the same client object in different theads caused malformed requests

2018-04-03 Thread Chris Friesen 

On 04/03/2018 04:25 AM, Xiong, Huan wrote:

Hi,

I'm using a cloud benchmarking tool [1], which creates a *single* nova
client object in main thread and invoke methods on that object in different
worker threads. I find it generated malformed requests at random (my
system has python-novaclient 10.1.0 installed). The root cause was because
some methods in novaclient (e.g., those in images.py and networks.py)
changed client object's service_type. Since all threads shared a single
client object, the change caused other threads generated malformed requests
and hence the failure.

I wonder if this is a known issue for novaclient, or the above approach is
not supported?


In general, unless something says it is thread-safe you should assume it is not.

Chris


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[openstack-dev] [novaclient] invoking methods on the same client object in different theads caused malformed requests

2018-04-03 Thread Xiong, Huan 
Hi,

I'm using a cloud benchmarking tool [1], which creates a *single* nova
client object in main thread and invoke methods on that object in different
worker threads. I find it generated malformed requests at random (my
system has python-novaclient 10.1.0 installed). The root cause was because
some methods in novaclient (e.g., those in images.py and networks.py) 
changed client object's service_type. Since all threads shared a single
client object, the change caused other threads generated malformed requests
and hence the failure.

I wonder if this is a known issue for novaclient, or the above approach is
not supported?

Thanks,
rayx

[1] https://github.com/ibmcb/cbtool

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