high-availability

How to replicate a Java web app onto a 2nd computer for "high availability" and failure tolerance, or "failover"?

I want to be able to upgrade my hardware at any time without interruption in my web app i.e. switch off one of the computers at any time, swap/upgrade it, plug it back in, and set it up so it gets eve[详细]

2023-04-13 05:33 分类：问答

Quartz in high availability architecture

I have the next application architecture: Main DB Server -> (replicated) BackUp DB Server JBoss Cluster 1 (DS is main DB server), JBoss Cluster 2 (DS is bachup DB server)[详细]

2023-04-12 00:17 分类：问答

What's best practice for HA gearman job servers

From gearman\'s main page, they mention running with multiple job servers so if a job server dies, the clients can pick up a new job server. Given the statement and diagram below, it seems that the jo[详细]

2023-04-11 04:09 分类：问答

Tomcat7 parallel deployment feature: experiences using it on production servers? [closed]

Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow.[详细]

2023-04-11 00:51 分类：问答

Can multiple gearman servers share the same libdrizzle queue?

Can multiple gearman servers share the same gearman queue, via libdrizzle? I\'m wondering if this will eliminate the gearman server as a single point o开发者_开发问答f failure--if I have multiple web[详细]

2023-04-09 22:14 分类：问答

What permissions does the health_check_user for pgpool-II need?

I\'m confused about a point of pg_pool-II\'s documentation. The health_check_user is used to determine the health of DB cluster servers, but what abilities does the health_check_user need? As there ar[详细]

2023-04-02 16:47 分类：问答

How to use Pacemaker to restart httpd

We have two servers with a Pacemaker (crm) setup that enables a primary/standby cluster.There are currently two services controlled/monitored by Pacemaker that, if either goes down, will cause a fail-[详细]

2023-03-29 00:29 分类：问答

Single Point of Failure on scaling application across AWS

We have a Rails-based application, deployment infrastucture binds to AWS. Current schema included the following layers:[详细]

2023-03-27 23:53 分类：问答

High availability payment processing site with ASP.NET C#, MS SQL Server and which hosting solution?

we are developing a kind of payment proce开发者_Go百科ssing site that is currently running on IIS and SQL Server at a shared hosting company.[详细]

2023-03-25 02:40 分类：问答

How to use High Availability in JBOS AS 7?

How I can start a cluster in JBoss AS 7 ? I can star and use ( deploy and etc ), but how can I configure a cluster ? I used the configuration HA in standalone and each instance is independent. In doma[详细]

2023-03-23 00:37 分类：问答