[jira] [Resolved] (CLOUDSTACK-2843) Support parallel VM deployment with CloudStack

["Alena Prokharchyk (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-2843?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alena Prokharchyk resolved CLOUDSTACK-2843.
-------------------------------------------

    Resolution: Fixed

For QA to test

DeployVm cases
============================================
* deploy multiple vms for the new network
* deploy multiple vms for the existing network in Implemented state
* deploy multiple vms from password enabled template
* deploy multiple vms with huge userData. Make sure user data was set for all of them
* deploy multiple vms from password enabled template. Make sure that the password works for all of them


Start Vm cases
=============================================
* start multiple vms that are in Stopped state
* start multiple vms having more than 1 disk attached
* start multiple vms with huge user data


Stop vm cases
============================================
* stop multiple vms
* execute stop commnad right after start command was sent for the vm


StartCommand
StopCommand
CreateCommand
CopyVolumeCommand

DhcpEntryCommand
PasswordResetCommand
UserDataCommand
VmDataCommand


* Test on different hypervisors
* Check that you can turn synchornization back on by changing following parameters values to true (false by default):

execute.in.sequence.hypervisor.commands
execute.in.sequence.network.element.commands

                
> Support parallel VM deployment with CloudStack
> ----------------------------------------------
>
>                 Key: CLOUDSTACK-2843
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-2843
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>          Components: Management Server
>    Affects Versions: 4.2.0
>            Reporter: Alena Prokharchyk
>            Assignee: Alena Prokharchyk
>             Fix For: 4.2.0
>
>
> When a user deploys multiple instances concurrently, the deployment of these VMs are in fact queued up, so although CloudStack reports that all deployments have started to be created, it would appear in reality that until the 1st instance is deployed, the second, third, etc are queued and waiting to be executed. 
> CS should be able to support parallel VM deployment assuming the cluster resources can handle it.
> As a part of it, we have to:
> 1) Set executeInSequence=false for Start/Stop commands (also might make it false for PrimaryStorageDownload command as well)
> 2) Identify possible implication of turning off the synchronization for those commands, and fix the problematic places in the code.

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