[Linux-HA] Re: openAIS - Linux-HA

[Guochun Shi]

Shaw, Tim wrote:
> Hi Guochun,
>
> Thanks for replying to my first email so quickly.  I was wondering if I
> could ask some further questions about the patch that you created to
> incorporate openais with Linux-HA.
>
> We want to be able to access SA Forum AIS function calls from
> applications.  For example, checkpointing would be a very useful
> addition to Linux-HA, and so we'd like an application to be able to
> create checkpoint data and another application to be able to use that
> checkpoint data when Linux-HA initiates a failover, and we'd like to use
> the SA Forum API.  Is this possible using the code you contributed?
> Similarly with the EVS code etc.  I suppose what I'm asking is whether
> the openAIS API is exposed to applications.
>
> >From looking through the code on Andrew Beekhof's site
> (http://hg.beekhof.net/lha/crm-stable?cmd=changeset;node=6b1f0f6df95b),
> it looks like the majority of the code is for adding openais
> communications to PILS - is this correct?
>   
Yes, it is merely a communication module for linux-ha from openais EVS 
library. It does not have the capability to
help you use the checkpoint  from openais.

PS. it looks like there is checkpoint built in linux-ha library.

-Guochun

> Thanks again
> Tim
>
>
>
>
>  
>
> -----Original Message-----
> From: Guochun Shi [mailto:gshi at ncsa.uiuc.edu] 
> Sent: Wednesday, December 06, 2006 2:58 AM
> To: Shaw, Tim
> Subject: Re: openAIS - Linux-HA
>
> Hi, Shaw,
>
> Shaw, Tim wrote:
>   
>> Hi,
>>
>> Sorry to bother you, but I've been having some email correspondence 
>> with Andrew Beekhof of the Linx-HA forum, and I found your email on 
>> the Linux-HA pipermail lists.  I hope you don't mind my emailing you 
>> directly.
>>
>> We're interested in the work you did on combining Linux-HA and 
>> openAIS.  Essentially, we really like the capabilities of the Linux-HA
>>     
>
>   
>> system, but we'd like the SA Forum's API and also facilities such as 
>> checkpointing, event services, etc.  So I think what you did seems to 
>> be exactly what we're looking for.  But I understand it's not being 
>> supported anymore.  Did you find too many problems, or did you no 
>> longer have the effort required to continue supporting it?  Do you see
>>     
>
>   
>> that it's possible that we could keep this going?
>>
>>     
>  I have not heard many feedbacks since I wrote the module. It will be
> great if you can use it and fix possible bugs/add features. I will be
> more than happy to give suggestions. Alan in linux-ha team may also help
> you.
>
> good luck
> -Guochun
>
>   
>> Any advice / information you could provide would be gratefully 
>> appreciated.
>>
>> Many thanks
>> Tim
>>
>> ##########################################
>> Tim Shaw
>> Surface Combatant System Integration
>> Maritime Operations Division
>> Defence Science and Technology Organisation 77LABS PO Box 1500 
>> Edinburgh, South Australia 5111
>>
>> Phone: +61 (0)8 8259 7466
>> Facsimile: +61 (0)8 8259 5139
>> Mobile Phone: +61 (0)400 012 771
>> E-mail: tim.shaw at dsto.defence.gov.au
>> #########################################
>>
>>
>>
>>     
>
>
> --
> gshi at ncsa.uiuc.edu
>
> National Center for Supercomputing Applications (NCSA) at the University
> of Illinois in Urbana-Champaign (UIUC)
>   


-- 
gshi at ncsa.uiuc.edu

National Center for Supercomputing Applications (NCSA)
at the University of Illinois in Urbana-Champaign (UIUC)