PicklingError: Can't pickle <type 'thread.lock'>

[Sumant Murke]

Unable use gnocchi benchmark metric show API. Client returns a PicklingError

for more info:
http://paste.openstack.org/show/487932/

Step to reproduce:
gnocchi benchmark metric show --count 1 {metric ID or name}

[Julien Danjou (jdanjou)]

Works fine here, what kind of OS are you using?

[Sumant Murke (sumant-murke)]

OS: ubuntu 14.04
gnocchi version : 2.0.0

Note: Running gnocchi on devstack

[sleter (sleterrier-us)]

We are running in the same issue with gnocchi benchmark metric create.

gnocchi benchmark --verbose metric create -w 2 -n 100
Creating metrics
Traceback (most recent call last):
  File "/usr/lib64/python2.7/multiprocessing/queues.py", line 266, in _feed
    send(obj)
PicklingError: Can't pickle <type 'thread.lock'>: attribute lookup thread.lock failed
0/100, total: 0.02 seconds, rate: 0.00 create/second
0/100, total: 1.02 seconds, rate: 0.00 create/second
0/100, total: 2.02 seconds, rate: 0.00 create/second
0/100, total: 3.02 seconds, rate: 0.00 create/second

CentOS 7.1
Python 2.7.5

Babel==2.3.2
cliff==2.0.0
futurist==0.13.0
gnocchi==2.0.2
gnocchiclient==2.2.0
keystoneauth1==2.5.0
oslo.i18n==3.5.0
oslo.serialization==2.4.0
oslo.utils==3.8.0
six==1.10.0

[gordon chung (chungg)]

see this in Fedora22 as well with master

[gordon chung (chungg)]

related to this: https://github.com/openstack/python-gnocchiclient/commit/f1ef39412b6c45c62bab72a191059115fc09bd92 if i remove it, it's fine.

[Lawrance (jing)]

thanks gordon, it works for me

use `futurist.ProcessPoolExecutor` rather than `futurist.ThreadPoolExecutor`

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/341406

[OpenStack Infra (hudson-openstack)]

Change abandoned by zhangguoqing ([e-mail]) on branch: master
Review: https://review.openstack.org/341406
Reason: should rewrite the benchmark tool！

[Gaëtan Trellu (goldyfruit)]

Guys,

Even with the master I still having this issue.

# gnocchi benchmark metric create --count 10
Traceback (most recent call last):
  File "/usr/lib64/python2.7/multiprocessing/queues.py", line 266, in _feed
    send(obj)
PicklingError: Can't pickle <type 'thread.lock'>: attribute lookup thread.lock failed

# gnocchi --version
gnocchi 2.6.0

# python -V
Python 2.7.5

I'm running gnocchi in a virtualenv.

[jazeltq (jazeltq-k)]

# gnocchi --version
gnocchi 2.8.2

python 2.7.5
also met this issue。。。

[jazeltq (jazeltq-k)]

This is because the bug in python2, use python 3 will fix it...