24x7 Server operation

[randb]

Looks like Valor server upgrade needs a downtime. When there is any issue in upgrade, the downtime can be long. It is undesirable for an MMO game that requires timing precision.

Please consider upgrade your server infrastructure to support 24x7 operation.

A redundancy concept is like this:

1. A group of redundant servers (Server Group B) runs parallel with your production servers (Server Group A).

2. Before an upgrade, Server Group B is brought to a state as same as SGA (database synced) and takes all the provisioning requests in real time as same as SGA.

3. SGB is upgraded to a new release. But it does not take over SGA in production yet.

4. SGB runs for a certain time. When it is determined that SGB runs fine, a switchover is performed and SGB takes over the production.

5. After SGB takes over production, SGA still takes all the provisioning requests in real time as same as SGB.

6. If there are any undesirable issues in SGB in production, a switchback can bring SGA back to production in a split second, maintaining operation.

It's just a suggestion. Such design is complicated. But maybe it is worthwhile for a server infrastructure upgrade.

[Bladnach]

Since 2.0 - Valor keep loosing the internet connection - and endless popups with Opps, Update, Summon Internet etc.etc.etc. Valor resets everytime pressing home button - and accessing other APP (eg kakao). Its so frustrating. The game have turned slowly and I blame the map. Scrap it - we do not need FOG OF WAR in a game where an attack takes 10h to cross the screen - lol ... it's lame.

There are so much waiting time in Valor - so please dont add to the downside of the game.

I enjoyed the game before 2.0 - now its bugged with errors etc. - please correct it.