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Posted to dev@vcl.apache.org by "Truesdale, Gary" <ga...@hp.com> on 2014/09/24 20:17:56 UTC
Remove - RE: [jira] [Resolved] (VCL-5) multiple web servers
Remove-
Josh, can you take me off this list?
Gary Truesdale P.E.
Account Manager
Hewlett-Packard
310.658.0922
-----Original Message-----
From: Josh Thompson (JIRA) [mailto:jira@apache.org]
Sent: Wednesday, September 24, 2014 11:17 AM
To: dev@vcl.apache.org
Subject: [jira] [Resolved] (VCL-5) multiple web servers
[ https://issues.apache.org/jira/browse/VCL-5?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Josh Thompson resolved VCL-5.
-----------------------------
Resolution: Fixed
> multiple web servers
> --------------------
>
> Key: VCL-5
> URL: https://issues.apache.org/jira/browse/VCL-5
> Project: VCL
> Issue Type: New Feature
> Components: database, web gui (frontend)
> Affects Versions: 2.2
> Reporter: Josh Thompson
> Fix For: 2.4
>
>
> Modify the frontend code to allow the existence of multiple web servers running in a load balanced fashion. The holdup for this has been due to a semaphore lock around the code that allocates a machine for a reservation. Without the semaphore, two people hitting the site at (nearly) the exact same time can end up being assigned the same machine.
> An idea I came up with to handle this is to only run the scheduling portion of the code via the XML RPC API. A single web server would be elected as the master. All web servers would call the scheduling part of the code via the API on the master, allowing the semaphore lock to still function. If the master server goes down, an election process would determine the new master.
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Re: Remove - RE: [jira] [Resolved] (VCL-5) multiple web servers
Posted by Aaron Peeler <fa...@ncsu.edu>.
Gary,
To unsubscribe, send a message to: dev-unsubscribe@vcl.apache.org
and possibly
To unsubscribe, send a message to: commits-unsubscribe@vcl.apache.org
We can not unsubscribe you - easily.
Aaron
On Wed, Sep 24, 2014 at 2:17 PM, Truesdale, Gary <ga...@hp.com> wrote:
> Remove-
>
>
> Josh, can you take me off this list?
>
> Gary Truesdale P.E.
> Account Manager
> Hewlett-Packard
> 310.658.0922
>
> -----Original Message-----
> From: Josh Thompson (JIRA) [mailto:jira@apache.org]
> Sent: Wednesday, September 24, 2014 11:17 AM
> To: dev@vcl.apache.org
> Subject: [jira] [Resolved] (VCL-5) multiple web servers
>
>
> [ https://issues.apache.org/jira/browse/VCL-5?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
>
> Josh Thompson resolved VCL-5.
> -----------------------------
> Resolution: Fixed
>
>> multiple web servers
>> --------------------
>>
>> Key: VCL-5
>> URL: https://issues.apache.org/jira/browse/VCL-5
>> Project: VCL
>> Issue Type: New Feature
>> Components: database, web gui (frontend)
>> Affects Versions: 2.2
>> Reporter: Josh Thompson
>> Fix For: 2.4
>>
>>
>> Modify the frontend code to allow the existence of multiple web servers running in a load balanced fashion. The holdup for this has been due to a semaphore lock around the code that allocates a machine for a reservation. Without the semaphore, two people hitting the site at (nearly) the exact same time can end up being assigned the same machine.
>> An idea I came up with to handle this is to only run the scheduling portion of the code via the XML RPC API. A single web server would be elected as the master. All web servers would call the scheduling part of the code via the API on the master, allowing the semaphore lock to still function. If the master server goes down, an election process would determine the new master.
>
>
>
> --
> This message was sent by Atlassian JIRA
> (v6.3.4#6332)
--
Aaron Peeler
Program Manager
Virtual Computing Lab
NC State University
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