Any worker agent monitors for appliance based load balancers?

Posted by Zethris on Server Fault See other posts from Server Fault or by Zethris
Published on 2009-08-13T19:16:30Z Indexed on 2010/04/12 2:03 UTC
Read the original article Hit count: 298

Filed under:

load-balancing

|

healthcheck

Looking to find out to what extent an appliance load balancer can monitor servers for both failover (say for example a service like apache tomcat fails) and load balancing?

Right now it looks like it's just port monitoring/connection tracking and healthcheck urls that it will heartbeat and detect as down if it doesn't come back with a finished request.

We are looking at the Kemp 3500 or Loadbalancer.org solutions.

Is there any sort of web application level monitoring/load balancing that these load balancers can offer that can more directly interact with the servers it's balancing?

© Server Fault or respective owner

Related posts about load-balancing

Failover or load balancing configuration on Apple Xserve and Mac OS X Server Snow Leopard (10.6)

as seen on Server Fault - Search for 'Server Fault'
I'm currently installing a number of Apple Xserve boxes running Mac OS X Server (10.6). After poking and prodding for a while I can't find any obvious way, or documentation telling me how, to set up the 2 ethernet ports in a failover or load-balancing configuration. There seems to be an obvious… >>> More
Conceptually how does load-balancing on the EJB tier work in Glassfish/any ejb container

as seen on Stack Overflow - Search for 'Stack Overflow'
I am wondering conceptually how load-balancing works on the EJB-level (not web session replication) with Java EE containers like Glassfish. From what I have gleaned your remote interface is a proxy that delegates your call to one of many servers you may have in an environment. If things fail are… >>> More
Do i need a dedicated server for load balancing?

as seen on Server Fault - Search for 'Server Fault'
I'm completely new to the concept of load balancing so i hope this question isn't a "stupid question" because i've been searching around and im having a hard time understanding this. So to my understanding, in order to load balance, i need a separate machine with an ip address i can direct all traffic… >>> More
Load balancing and sessions

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi there, What is the better approach for load balancing on web servers? My services run in .NET and Mono, so they could be hosted on IIS or Apache2, and the will have to provide SSL connection. I've read two main approaches, store the state in a common server and use sticky sessions, there is any… >>> More
Loadbalancing outbound traffic while using openbgpd on freebsd

as seen on Server Fault - Search for 'Server Fault'
Hi, I am using openbgpd in freeBSD with 2 ISP connections. I have my own AS number and a /22 network. Currently I am advertising entire /22 to both networks. Inbound traffic comes in But my outbound traffic goes via a single link. I would like to either distribute my outbound traffic via both links… >>> More

Related posts about healthcheck

Pass HAProxy healthcheck requests as User-agent "LB-Check" to the backend webservers(apache)

as seen on Server Fault - Search for 'Server Fault'
I have a HAProxy setup in front of webservers(apache) for loadbalancing. Also healthchecks for these webservers are also configured in HAProxy. option httpchk HEAD /healthcheck.txt HTTP/1.0 Is it possible to transfer these healthcheck requests to backend webservers as "LB-Check" User-agent or… >>> More
How Amazon ELB Health check Works?

as seen on Server Fault - Search for 'Server Fault'
I am having problems configuring ELB for my servers. I start 2 micro instances with the exact same conf and try to do Load Balancing. However they never pass the health check (HTTP port 80 path:"/"). Ping is ok on the website. So is telnet on 80. How did the health check works? Am I doing anything… >>> More
Any worker agent monitors for appliance based load balancers?

as seen on Server Fault - Search for 'Server Fault'
Looking to find out to what extent an appliance load balancer can monitor servers for both failover (say for example a service like apache tomcat fails) and load balancing? Right now it looks like it's just port monitoring/connection tracking and healthcheck urls that it will heartbeat and detect… >>> More
Zero downtime deployment (Tomcat), Nginx or HAProxy, behind hardware LB - how to "starve" old server?

as seen on Server Fault - Search for 'Server Fault'
Currently we have the following setup. Hardware Load Balancer (LB) Box A running Tomcat on 8080 (TA) Box B running Tomcat on 8080 (TB) TA and TB are running behind LB. For now it's pretty complicated and manual job to take Box A or Box B out of LB to do the zero downtime deployment. I am thinking… >>> More
SQL Health Check...... ?????????

as seen on Oracle Blogs - Search for 'Oracle Blogs'
??????,??????????,???????????????,????SQL?????,????????????????,????????????????????????????,???????????????????????????????????? ???,????SQLHC,??????SQL??????????,????????(CBO)???,????????,???????????????????Document 1455583.1 ??? SQL Tuning Health-Check ??(SQLHC)???,??????????SQL?????… >>> More