[TYPO3-english] Failover and/or load balancing

Kay Strobach typo3 at kay-strobach.de
Fri Mar 9 16:15:35 CET 2012


Hi,

if TYPO3 temp is not synchronized, you need to have it synched :(
atleast for images. Alternativly you may use a reverse proxy to
centralize that :) - But that also requires sync.

Regards
kay

Am 07.03.2012 17:58, schrieb Koji Yanagisawa:
> Hello,
> 
> 1. They would be in the same machine room.
> 2. No reverse proxy.
> 3. Database is only redundant in the sense that I have master-slave replication going.
> 4. This is my main concern and reason for posting.  We once upon a time had the Apache document root NFS mounted (for web server redundancy!), but I was told I/O demand on typo3temp (potentially because of Powermail or whatever else) was such that we couldn't keep typo3temp there.  Our website started "acting funny."  Now it's a soft link to a local mount point.  I can definitely keep typo3conf on NFS but I was wondering if Typo3 requires that typo3temp be exactly the same across all web servers.  I can be bold and consider something like DRBD, but I'm averse to possible overengineering.
> 5. No publication server (I'm assuming this the the server people use Typo3 BE).
> 
> I'd like to keep this discussion to web server redundancy and not so much other components involved in website's overall redundancy for uptime's sake.  I do like to hear what other people do to achieve this in general but I'm very interested in what potential gotchas Typo3 as an application has.
> 
> Thank you,
> 
> --Koji
> 
> 
> On Mar 7, 2012, at 2:37 AM, Kay Strobach wrote:
> 
>> Hi,
>>
>> there many possibilities.
>>
>> You may describe your screnario more in detail:
>>
>> 1. Are the servers located in the same computing centre?
>> 2. Do you have a reverse proxy (highly recommend)
>> 3. Is your database redundant?
>> 4. How to you ensure, that the files in /fileadmin, typo3conf/ and
>> uploads are consistent (nfs, rsync)?
>> 5. do you have a third central publication server?
>>
>> Regards
>> Kay
>>
>> Am 07.03.2012 00:05, schrieb Koji Yanagisawa:
>>> Dear Typo3sters,
>>>
>>> Has anyone implemented either failover or load balancing (and consider failover sort of done) in terms of web server?  Not so much the database part, but I'm wondering if, say, 2 web servers can have each its own typo3temp?  Do you just DNS round robin it (point www.blah.com to 2 IPs)?  Or do you CNAME www.blah.com to like www1.blah.com and www2.blah.com?
>>>
>>> Thanks,
>>>
>>> --Koji
>>
>>
>> -- 
>> http://www.kay-strobach.de - Open Source Rocks
>>
>> TYPO3 .... inspiring people to share!
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>>
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> 


-- 
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