0
votes
1answer
47 views

Tomcat cluster - how to verify node starvation?

We have a tomcat cluster with a load balancer (haproxy). As part of our upgrade script we would like to starve a single tomcat in the cluster of 3, wait until all the requests are handled for that ...
0
votes
0answers
234 views

IOException: Operation not permitted; No faulty members identified

I am running a tomcat cluster with three tomcat instances and one Apache server. I have all MAC server except one RHEL box, on RHEL server my tomcat-cluster is not starting properly which is causing ...
0
votes
1answer
64 views

Detect if the original node failed in tomcat cluster

I have two nodes in a cluster. Node1 initially servers requests. Loadbalancer redirects the request to node 2 if the first node fails. I would like to know if there is a way for the Node 2 to detect ...
0
votes
1answer
374 views

Session replication in Tomcat

I have setup my cluster with one loadbalancer and 2 nodes with sticky session. I am using mod_jk for loadbalancing. I am having problem with proper session replication. I am using Tomcat 6. When I ...
1
vote
1answer
1k views

WARNING: Context manager doesn't exist

I have cluster setup with session replication. I have one load balancer with 2 tomcat instances as the worker nodes. In one of the node I am getting the WARNING. NOt sure what it really means. Session ...
1
vote
3answers
1k views

mod_jk produces Error smh errno=13

I am trying to use mod_jk for load balancing. Loadbalancer 172.17.8.189 (HTTPD+mod_jk) Node1 172.17.8.193 (apache tomcat instance 1) Node2 172.17.8.196 (apache tomcat instance 2) I checked my tomcat ...
1
vote
0answers
167 views

mod_jk tomcat error handling

I have a strange problem with my tomcat cluster. The cluster consists of 1 Apache with mod_jk and 6 Tomcat servers - each tomcat server is a own virtual machine. The cluster works as expected, ...
0
votes
0answers
621 views

Confusion setting up a simple tomcat6 clustering on ubuntu 12.04 using mod_jk: status page won't show

am a little confused when setting up 2 tomcat6 instances cluster in a clean ubuntu server 12.04. i didn't install default tomcat6 i used tomcat6-user's tomcat6-instance-create to create 2 instances. ...
1
vote
1answer
2k views

How to setup a simple Ubuntu Server Tomcat cluster on VirtualBox for testing? [closed]

I am looking for the step by step instructions to setup at least two simple Ubuntu Virtual Core 12.10 Server VMs on Oracle VirtualBox under Windows 7 64bit. The test setup would be: Apache HTTP ...
2
votes
1answer
159 views

Tomcat 7 Clustering using IIS webserver

I successfully configured Apche httpd server for load balancing and clustering od multiple tomcat instances on same machine. Now I need to use IIS web server instead of Apache server. How can I ...
1
vote
1answer
968 views

Tomcat 7.0 Clustering FarmWarDeployer Not working

I'm currently working on a Tomcat Cluster for Q&A, but unfortunatly, it seems that the auto deploy of a war across this cluster is not working at all. I know the cluster is working perfectly ...
1
vote
1answer
968 views

Tomcat mod_jk cluster skip 404 http status

I am trying Tomcat Clustering with mod_jk for months and so far not so bad but facing a problem during deployment. I am using FarmDeployer to copy and deploy the WAR to other nodes in the cluster but ...
1
vote
1answer
6k views

Load Balancing and Clustering using mod_proxy_ajp on Apache HTTP Server 2.2.21 and Tomcat 7.0.23

I've been struggling to make load balancing and clustering working using these combination: Apache HTTP Server 2.2.21 (httpd-2.2.21-win32-x86-openssl-0.9.8r) using mod_proxy_ajp with sticky session ...
1
vote
3answers
205 views

Setting up Tomcat on shared drive for clustered environment

We have a production environment with externally load-balanced Tomcat servers running on multiple servers, serving HTTP requests and maintaining stick sessions. Due to lack of complete build and ...
0
votes
2answers
475 views

How can I make a high available tomcat cluster with no single point of failure?

I've surfed the web and tried to find a way in order to make a tomcat cluster with no single point of failure , and all what I have found is that I need something called dispatcher which will be ...
2
votes
6answers
422 views

Running background jobs In a clustered environment

I have an architecture question. In a clustered web app environment, I can think of three ways to deal with background jobs: have a dedicated machine run all the jobs, thus freeing the web servers ...
0
votes
1answer
77 views

Is it possible to establish more than one load balancer with apache?

I've decided to cluster my J2EE web application using apache mod_jk as a front-end load balancer which redirects requests to a bunch of tomcat6 instances. Something like this. But there is a problem ...
1
vote
2answers
659 views

Tomcat clustering/loadbalancing performance in production environment

I have some doubts on the performance of clustering and session management in load balanced environment. Here are my questions: What are the drawbacks of sticky-sessions and session replication. The ...
0
votes
3answers
1k views

Is Tomcat Shared Session / Cluster between two machine possible?

I have a setup of several Tomcat servers distributed between a few servers, all running the same thing. Apache is on top of Apache and a loadbalancer in front of the Apache servers. I want to cluster ...
0
votes
2answers
746 views

Alternatives for load balancing Tomcat webapp?

We wish to enable some form of load balancing for a Tomcat webapp we're currently using today. Unfortunately, I know almost to nothing about Tomcat load balancing, clustering and so on. Can anyone ...
1
vote
1answer
2k views

Tomcat6 clustering, loadbalancing ,session sharing ,failover

I am trying to implement a failover enabled loadbalanced cluster using tomcat.(6.0.14/Apache 2.2) I have 2 tomcats runs in same machine. Both are load balanced using mod_jk/workers.properties and ...
1
vote
3answers
1k views

Tomcat Clustering and Load Balancing?

I have 3 tomcat servers where users get into all time. They are 3 because the processing of each request is heavy (lot of sql). Users enters to server 1 or 2 or 3. Now I want to make them "one". I ...