[jira] [Closed] (CLOUDSTACK-8272) Improve password serving script by making it non-blocking non-locking concurrent server

["Rohit Yadav (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-8272?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rohit Yadav closed CLOUDSTACK-8272.
-----------------------------------
    Resolution: Fixed

Fixed on 4.5 and master branches.

> Improve password serving script by making it non-blocking non-locking concurrent server
> ---------------------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-8272
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-8272
>             Project: CloudStack
>          Issue Type: Improvement
>      Security Level: Public(Anyone can view this level - this is the default.) 
>    Affects Versions: 4.5.0, 4.6.0, 4.4.2, 4.3.2
>            Reporter: Rohit Yadav
>            Assignee: Rohit Yadav
>              Labels: virtualrouter
>             Fix For: 4.5.0, 4.6.0
>
>
> The current reset password server serves one user VM at a time, uses a global lock per VR and slows up VM starting process for a VM that is created by a template with reset password scripts. No only reset password option, but when the VM starts for the first time this happens. The way it serves password uses forking the process/scripts which eats up resources in both process table and memory. For a concurrent launch of 30+ VM the VR hangs/fails. Possible solution in the past includes increase the VR memory.
> The solution would be to implement a concurrent single-process multi-threaded password server that works both in basic/isolated network and in VPCs. It's hard to do this in bash, so we can either implement a backward compatible python script that replaces the present bash script, or a compiled program (like a native tool) in C/C++/Go/Rust.



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