Master of Sex
accessing the site today is a nightmare,its so slow,search is not available,to me anyway,everything comes up error proxy server
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whats up with the site today
Sex God
Here is where we are at the moment, last night we moved over to the new server cluster, the network proxy that points people from the old to the new server cluster is choking although it was fine this morning so we will take it out ofg the loop, there may be some delays with ISP's that used cached DNS pointing to the right server array after that but we will find a way around that, here's the latest update on what is going on;
Paul: We're moving all the files onto the new, new front end then switching DNS so it will be 100% on the new setup.
None of the boxes are under load whatsoever, it's the proxy server causing the issues so we're taking it out of the equation completely.
It's not even loading flat files.
Sent at 2:07 PM on Friday
Paul: It should work fine once everything is on the same network segments. The only issue I forsee personally is peoples DNS being cached at an ISP level so when we change over it might not connect to the correct IP. But that's just something we're going to have to worry about when it's up.
It should be quick, but it depends on peoples ISPs.
Sent at 2:08 PM on Friday
me: Is there any way around that, also will the image server need to be re-wired as that looks like it comes straight off of the proxy server.
Also how long do ou think all of this will take.
Sent at 2:10 PM on Friday
Paul: There is a way round it. We can have the scripts on the new version AND the old version and hopefully with half on the updated DNS and half still connected to the old one it will hold up.
With the data remaining central we should be able to run two versions of the scripts.
Unless... the proxy with half a load causes issues with the rest of the setup.
But again, it's not something we can see until we do it.
We can monitor both versions to see who is hitting which IP and go from there.
Sent at 2:13 PM on Friday
Paul: Time, probably within the hour to get the files moved over and do the DNS switch, but like I said earlier. If an ISP has a record saying that SH is on IP and doesn't update its records to say it's on IP we may have issues.
This isn't something we can control, the DNS records should update every 2 minutes but it's down to the ISPs around the world to update.
We're just waiting on Jeff at the minute to move the files onto the new setup.
me: ok, sounds reasonable
Paul: We might switch the DNS and see 80% of users DNS info update, they'll use the new version and the 20% who are still waiting to be updated via there ISP might be fine on the proxy, but like I say, there is no way of knowing until it swaps.
Sent at 2:16 PM on Friday
Paul: It was 110% working at around 8am with just over 1K online, now it seems the proxy is just full up of so many open connections it's just not letting anything through.
All the database / mysql / front end boxes have not even broken a sweat, even with 1K users online.
So I'm confident with this proxy out of the way it should be perfect. It's just getting the proxy out of the way which is the difficult bit.
