WordPress 3.1 beta 1
More testing of the server migration to the cloud – and also to note that WordPress 3.1 beta 1 is now live.
Some nice features – I’ll be kicking the tyres some more on this in the coming weeks.
Infrastructure – heavy lifting and planning
A trio of projects before the year-end – all interwined.
- Migration of mail from Google Apps to Hosted Exchange.
- Migration of DNS from current service provider to ‘someone new’
- Migration of blog/photos to ‘somewhere in the cloud’
Moving the mail isn’t that hard – it’s just making sure that mail doesn’t get dropped while the new MX and CNAMEs are propagating. The old mail will live on in Google Apps – the new stuff in hosted Exchange. The trickier part is making sure that ‘my customers’ get the right service – and can keep getting mail in Outlook or the web. Users eh.
Moving the DNS is part of the mid-term strategy to change ISP. Covad have been great to me since I moved to the US; sadly they are starting to show signs of decay. I need to support additional DNS records than the A, CNAME and MX records – no plans from Covad.
The final push is to move the blog servers out of the ‘home data centre’ and to a reliable, faster provider.
The ultimate aim is to divorce myself from Covad and the Static IP business DSL that has worked so well – and move to something that is much faster – but maybe without the SLA on the line itself.
xCache – PHP caching, performance and stability
I’ve been testing out xCache for a while – primarily as a PHP accelerator.
Early results were really promising – reducing page load times dramatically; and also reducing CPU load as common pages (i.e. the latest blog post and photos) were fed directly from the cache.
There seems to be some kind of memory leak/cache clean up issue with xCache 1.3 – I allocate some amount of RAM for cache (16MB, 64MB, 256MB – it really doesn’t matter) and at some point Apache/PHP starts eating up RAM, then starting to swap – and finally the server grinds to a halt.
xCache is off for now – I’ll keep investigating.
Overnight line problems
Any ideas?
Twice this week all connectivity has been lost – upstream of the CPE (on premise router).
The first was from 2100 to 0800:
The next from 2130 to 0430:
It looks like some kind of maintenance window from the Qwest who actually provision the line.
Uptime
The firewall/IDS/proxy box has been up for a year.
I’m happy with that.
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