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From "Rohit Yadav (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CLOUDSTACK-8272) Improve password serving script by making it non-blocking non-locking concurrent server
Date Tue, 10 Mar 2015 10:15:38 GMT

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

Rohit Yadav updated CLOUDSTACK-8272:
------------------------------------
    Fix Version/s: 4.6.0
                   4.5.0

> 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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