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Keyword not supported: 'failover partner:sql-failover;initial catalog' in VB.NET
by Jouni in VB & VBnet

We have a SQL Server configured for mirroring. The initial server failed today and almost all our applications failed over correctly except for a VB.NET application.

When it starts up to set the connection string I get the following error:

"Keyword not supported: 'failover partner:sql-failover;initial catalog'."

Here is the code to connect:

ActiveMQ service failover AND database failover
by HtW in Programming Languages

I'm facing a bit of difficulties implementing the HA for my ActiveMQ service.
Right now, I've correctly implemented the Master / Slave brokers of Active MQ, so if the master dies, the slave takes over the message delivery transparently. They both share a Microsoft SQL database to store the messages.

I wanted to add another level of High Availability, ensuring a database mirrori

How to Set Up Failover With DNS
by WasntEnough in Computers
Domain Name System (DNS) is what translates Domain Names into Internet Protocol (IP) addresses on the Internet. Your Internet connection relies on DNS every time you visit a website. If you run your own DNS server, you must set up "DNS Zone Files" to store information about any domains you are hosting. Included in a DNS Zone File is information such as the IP addresses of your Mail, FTP and WWW se
TAGS : Failover With

Memcache Failover
by rcpratt in Programming Languages

I am using Memcache (Not memcacheD) . If I have 10 memcache servers and 1 of it fails does that get removed from pool automatically ? I mean when my application tries to make a request for cache will it ever try to get key data from that 1 failed server ?

Memcached for PHP and failover
by AtenRa in PHP

We are deploying memcached for our application, and I would like to make it as resistant as I can.

We plan to use the newer memcacheD extension.

One thing that I haven not fully figured out is, what happens if one of the servers dies. At the very least it seems like the memcached client just 'gives up' on that server, and doesn't store anything in it.

This be

Failover with mongodb
by billputer in Databases

I have to setup a database that can handle failover (if one crashes the other takes over). For that, I decided to use mongodb:
I set up a replica set with two instances. Each instance is running on a separate VM. I have several questions:

It is recommended to use at least 3 instances in a replica set. Is it ok to use only two ?

I have two instances, and then two IP

Connect to failover db in PHP
by imported_bman in PHP

In php is there a quick way to say if db1 is unavailable connect to db2 instead?

Here is what I'm doing now:

@mysql_select_db($database) or die("unable to select database");
TAGS : Connect failover

What Is SQL Failover Clustering?
by Seattle in Computers
A relational database server is a set of software programs designed to operate a database. The database, in turn, stores valuable information in the form of organized records, numbering from thousands to millions. Users send the server requests in the form of SQL, the Structured Query Language. A server cluster spreads a database’s workload over two or more physical computers. Failover clust

DNS failover takes time
by Jesper in Programming Languages

I have a C# web service on IIS acting like a proxy. My problem is that when the IP address of one of the backend servers change, the windows DNS cache is correctly updated (checked with nslookup) but the service continues to do some requests on the old IP for about 40 minutes.

I noticed that the failover works if I stop hitting the proxy for 5 minutes but it is not an acceptable sol

Message-based Pub/Sub Failover
by tontod in Programming Languages

I am creating a base architecture for a gaming system. I need it to be message-base for scaling and failover. It also uses sockets for publisher/subscriber notification of messages. My challenge is: should I go with what I have or use a full-blown ESB like nServiceBus or MassTransit?

Here is what I have so far, it's a bit complicated. First of all, it is a poker system.

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