# Can't lower my build parallelism

**URL:** <https://discuss.circleci.com/t/cant-lower-my-build-parallelism/10541>\
**Category:** Build Environment\
**Created:** [February 22, 2017, 5:29pm UTC](https://discuss.circleci.com/t/cant-lower-my-build-parallelism/10541 "2017-02-22T17:29:13Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![slytomcat](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@slytomcat](https://discuss.circleci.com/u/slytomcat)\
**Post date:** [February 22, 2017, 5:29pm UTC](https://discuss.circleci.com/t/cant-lower-my-build-parallelism/10541/1 "2017-02-22T17:29:13Z")

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I’m a new to CirleCI  
Today I’ve created account and try to add my OpenSource project on GitHub.  
I’ve done some integration and tried some parallelism (system allow me to use 4 containers). But after some time (when parallelism was set to 2 containers) the management of parallelism hangs out and I can’t change anything (neither increase nor decrease it).  
Can you help me?

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**Author:** ![slytomcat](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@slytomcat](https://discuss.circleci.com/u/slytomcat)\
**Post date:** [February 25, 2017, 11:31am UTC](https://discuss.circleci.com/t/cant-lower-my-build-parallelism/10541/2 "2017-02-25T11:31:04Z")

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Now it woks again normally.

But I got such error from default nosetests:

Traceback (most recent call last):  
File “/opt/circleci/python/3.5.2/lib/python3.5/unittest/case.py”, line 58, in testPartExecutor  
yield  
File “/opt/circleci/python/3.5.2/lib/python3.5/unittest/case.py”, line 600, in run  
testMethod()  
File “/home/ubuntu/virtualenvs/venv-3.5.2/lib/python3.5/site-packages/nose/failure.py”, line 42, in runTest  
raise self.exc\_class(self.exc\_val)  
ValueError: Can’t find callable test\_Disk in file /home/ubuntu/yandex-disk-client/test-Disk: file is not a python module

When I override test command to nosetests -v - it works, but it doesn’t use parallelism (default nosetests can work with it).

How to fix default nosetests issue?

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**Author:** ![slytomcat](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@slytomcat](https://discuss.circleci.com/u/slytomcat)\
**Post date:** [February 27, 2017, 6:07am UTC](https://discuss.circleci.com/t/cant-lower-my-build-parallelism/10541/3 "2017-02-27T06:07:57Z")

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> [@slytomcat](#):
>
> How to fix default nosetests issue?

Anybody have any idea how to fix it?

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<div class="post-metadata">

**Author:** ![slytomcat](https://avatars.discourse-cdn.com/v4/letter/s/77aa72/32.png) [@slytomcat](https://discuss.circleci.com/u/slytomcat)\
**Post date:** [March 1, 2017, 7:32am UTC](https://discuss.circleci.com/t/cant-lower-my-build-parallelism/10541/4 "2017-03-01T07:32:35Z")

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It’s pity that such a good service have such a week support…😕

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**Author:** ![system](https://global.discourse-cdn.com/circleci/original/3X/5/1/511608acda8e85906e15909b57bd0a46c1dbe291.png) [@system](https://discuss.circleci.com/u/system)\
**Post date:** [June 18, 2018, 11:39am UTC](https://discuss.circleci.com/t/cant-lower-my-build-parallelism/10541/5 "2018-06-18T11:39:12Z")

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Closed on June 18, 2018, 11:39am UTC