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From "Koushik Das" <>
Subject Re: Review Request 24152: CLOUDSTACK-7182: NPE while trying to deploy VMs in parallel in isolated network
Date Mon, 04 Aug 2014 10:18:50 GMT

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(Updated Aug. 4, 2014, 10:18 a.m.)

Review request for cloudstack, Alena Prokharchyk and Sheng Yang.


Rebased with latest master


Repository: cloudstack-git


- Check to see if network is implemented changed from 'state == Implementing||Implemented'
to 'state == Implemented'. The earlier check was a hack to prevent the issue described next.
- At the time of implementing network (using implementNetwork() method), if the VR needs to
be deployed then it follows the same path of regular VM deployment. This leads to a nested
call to implementNetwork() while preparing VR nics. This flow creates issues in dealing with
network state transitions. The original call puts network in "Implementing" state and then
the nested call again tries to put it into same state resulting in issues. In order to avoid
it, implementNetwork() call for VR is replaced with below code.

Diffs (updated)




Ran isolated network tests using simulator.
Also ran the following VPC test using simulator:
1. created vpc, VR gets started as part of this
2. created network in the vpc
3. deployed vm in network created in step#2


Koushik Das

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