0
votes
1answer
39 views

Apache mod_proxy_balancer + Tomcat load balancing - Should not redirect until web applications are ready

I am using apache2 mod_proxy and mod_proxy_balancer to balance the load to 4 seperate tomcat8 instances on different servers. I am using different AJP ports for each tomcat instance and using jvmRoute ...
1
vote
2answers
104 views

Load Balancing MongoDB

I have an application written in java with tomcat that I am ready to start scaling for production. As I understand it, i shouldn't use a load balancer with mongodb router instances as it can cause ...
0
votes
0answers
57 views

Tomcat fails to return syn requests to F5

I have an F5 LTM sitting in front of two tomcat servers which host 4 applications. When I initially create the pools and add the members to the LTM I can hit all applications. This is the weird part, ...
0
votes
0answers
53 views

set up apache mod_proxy_balancer on Cloud for sticky sessions without route and jvmRoute

In order to get Apache working with Tomcat sticky sessions using mod_proxy_balancer, we need to configure a route in the Apache conf and a matching jvmroute in Tomcat's server.xml I need to set up ...
0
votes
0answers
41 views

Pound: address already in use

Below is the config that I use in pound for load-balancing a set of Tomcat. To get started I just used one tomcat instance. The URLs that I want pound to forward is of the type ...
0
votes
0answers
30 views

Remap.config in Clustered mode ATS

I have a cluster of Apache Traffic Server. These are operating as reverse proxy for a set of tomcat instances, each having, say 5 servlets. I need to configure the ATS in such a way that there is ...
4
votes
2answers
313 views

How to scale up a web server supporting long polling

I am planing to add more web application servers to support increasing clients, deploying HAproxy and Keepalived for load balancing and High availability. My server usage has the following ...
0
votes
0answers
92 views

SSL Integration with apache used for load balancing

We are using apache mod-proxy on top of tomcat to achive load balancing. It is working fine , now we are planning to move to https from httpd . For that my configuration looks as follows ...
1
vote
0answers
123 views

Setting up balancer-manager with mod_status on load balancing apache machine

I am setting up a Centos machine with Apache running on it for load balancing between two application webservers. Normally I would do all this with an F5 (or other hardware LB) but the customer is not ...
0
votes
1answer
62 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
323 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
3answers
984 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 ...
0
votes
0answers
582 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. ...
0
votes
1answer
398 views

NGINX as load balancer with tomcat6 gives bad gateway error only only HTTPS mode

I am using nginx as load balancer on tomcat6 webserver. Both NGINX and TOMCAT6 have been configured to use only HTTPS. NGINX configuration settings are mentioned in the following two files. ...
0
votes
1answer
499 views

Load balancing using Httpd mod_cluster and tomcat not working

I am trying to setup a load balancer using Httpd, mod_cluster and Tomcat. My Httpd is running on the same server with IP 192.168.9.73 where the tomcat is running. Here is my Httpd configuration- ...
0
votes
1answer
342 views

Load balancing using mod_cluster with httpd and Tomcat only?

Is it possible to design a load balancer using Apache Httpd with mod_cluster and Tomcat only (No JBossAS or JBossWeb)?
1
vote
0answers
132 views

mod_cluster and Tomcat load balancing design

I am fairly new to Load balancing. I am able to setup a load balancer using Apache httpd, mod_jk and tomcat. Now the problem is we would like to have design in the following manner, ...
1
vote
2answers
579 views

Apache & Tomcat Load balancing via Mod_jk issue

I hope this finds you all in the best of your health and spirits. I have an issue with a new setup where I currently have 1 APACHE 2.2.15 & Tomcat 6.0.14 on RHEL. Mod_JK version 1.2.30. Ill add ...
-1
votes
1answer
206 views

Load balancing multiple PHP sites and JSP sites using Apache Server

I've been trying for the last couple of days to get this small (i though) scenario working. Small drawing of my architecture.       request ...
0
votes
2answers
98 views

Can I use apache http server as forwarder to Tomcat?

I have a Tomcat server that listens in 8080(http), 443(https), 7443(https). Note that the connectors for 443 and 7443 use different certificates. I am interested in using httpd for load balancing. Is ...
1
vote
1answer
514 views

Loadbalancing with nginx and tomcat

Hello this should be fairly easy to answer for any system admin, the problem is that I'm not server admin but I have to complete this task, I'm very close but still not managing to do it. Here is what ...
0
votes
2answers
746 views

Zero downtime deployment (Tomcat), Nginx or HAProxy, behind hardware LB - how to “starve” old server?

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 ...
1
vote
2answers
61 views

Load Balancing Options on Tomcat

I have applications running on tomcat, previously standalone. Now I have to implement high availability for all apps, so here I am. I have the option of a hardware load balancer or some other means. ...
3
votes
1answer
628 views

Load Balancing not working as expected in Apache in round-robin mode

We are facing some unexpected behavior with round-robin load balancing on Apache when one of the Tomcat servers goes down. Our Setup: we have 2 Apache web servers on the front end using mod_jk module ...
0
votes
3answers
103 views

Share a Tomcat Node to multiple LoadBalancer?

Can one tomcat instance (with an ajp connector) be accessed by two different loadbalancers (httpd+mod_jk)? Thanks!
0
votes
1answer
82 views

Apache balancing cluster

I need to make an apache + tomcat reliable, high available cluser. I've seen many docs how to make this archeticture: __________________________ _____________ | ...
1
vote
1answer
5k 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
1answer
1k views

Apache2 mod_jk LoadBalancer + Tomcat7 - Performance-Tuning

we have a very high load System with round about 8.5 Million User per day. Actually we have 8 Apache2 Loadbalancer (Ubuntu 10.04.3 LTS x64 via DNS-RoundRobin) which are sending the traffic via AJP1.3 ...
4
votes
3answers
970 views

Tomcat - Spring Framework - MySQL, Load balancing design

Lets say I have Spring Framework App that is running on Tomcat and uses MySQL database: What would be the best solution in this instance that would allow for sociability ...
0
votes
1answer
314 views

Tomcat 7 won't allow me to have 2 Connector elements in configuration?

I need to have Tomcat 7 listen on 2 different ports for HTTP requests (the 2nd port makes webapps think it's receiving https requests because that's what's happening on the load balancer). But the ...
0
votes
2answers
468 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 ...
6
votes
1answer
814 views

What's the best practice for hot-redeployment of WARs to Tomcat?

What's the best practice for hot-redeployment of WARs to Tomcat? Say that I have a webapp that serves a long-running type of user (logs in in the morning, uses all say), and want non-stop redeployment ...
0
votes
1answer
2k views

Simple setup for load-balanced and fail-over tomcat?

Being new to Tomcat infrastructure, I am wondering what an advisable setup would be to have two physical machines each running a tomcat instance to be load-balanced and capable of failover to each ...
1
vote
2answers
252 views

Load balancing or high availability tomcat with network switch?

i was wondering if it is possible to load balance and create a high availability environment using network switches? Or do i need a real apache server in front of the tomcat servers?
0
votes
1answer
76 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 ...
0
votes
1answer
261 views

Problem while configuring Apache server lbmethod for load balancing with tomcat

I am using apache server as a front end load balancer with tomcat6 servers. I am using lbmethod configuration for making all the requests from one client going to same tomcat always. <VirtualHost ...
0
votes
1answer
106 views

Divide webapps between tomcat instances

I have 300 webapps in a single Tomcat. It takes a while to restart Tomcat plus a few other limitations. I have Two web servers load balanced in current Apache + Mod_JK + Tomcat setup. These servers ...
0
votes
1answer
107 views

Load balancing in Tomcat in 64-bit OS

Sorry about double post. Actually I want to move my question on StackOverflow to ServerFault but it seems like I can't do it. Below is my question: I have a web application and required load ...
1
vote
2answers
636 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
1answer
757 views

Deciding for software load balancing solution (apache mod vs other)

I have a simple web server configuration with Apache webserver and Tomcat. For instance we have 2 servers. I plan to scale up. Of course we will need a load balancing solution very soon. Should I be ...
2
votes
2answers
1k views

Which load balancer?

I am looking for a load balancer that: Is good stuff (free, open source, documented) Handles SSL Workers register in the load balancer, instead of listing workers (like jboss mod_cluster) works with ...
3
votes
3answers
1k views

Rolling deploys with Tomcats behind an HAProxy instance

I have three Tomcat instances running behind an HAProxy. When I roll out changes to my web applications, I'd like to do a rolling deploy (i.e. bounce one Tomcat at a time) so users don't see any ...
0
votes
2answers
768 views

Load Balancing two Apache Tomcat WebServices

I am using two apache tomcat servers on two windows 7 machines and want to load balance the requests for those servers through a load balancer. I am not that experienced in building up such networks ...
4
votes
6answers
716 views

load balancing in Tomcat

I want to implement the load balancing in tomcat 6.0 so that we can create more than one instance of a tomcat and when any of the instance is down then other instance will run our application. so that ...
2
votes
1answer
935 views

Apache, Tomcat and mod_jk for load balancing

I've set-up a basic Apache (2.2.x) and Tomcat (6.0.x) set-up using mod_jk for load balancing using the worker.properties file. Preliminary testing seems to show that this works relatively well, and it ...
3
votes
7answers
21k views

Apache load balancer limits with Tomcat over AJP

I have Apache acting as a load balancer in front of 3 Tomcat servers. Occasionally, Apache returns 503 responses, which I would like to remove completely. All 4 servers are not under significant load ...
0
votes
2answers
742 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 ...
0
votes
3answers
644 views

Manually switch servers in Apache/mod_jk/Tomcat load balanced environment

Our setup is to have two front-facing WWW servers using Apache1.3 and mod_jk and two application servers running Tomcat. The frontend servers load balance transparently using sticky_sessions. ...
0
votes
3answers
933 views

Multiple Tomcat Instances

I have One Staic IP on one Server which is publically accessible over the Internet. I am running an Apache WebServer on that Server. How can I make - 3 Web Applications (On Tomcat) running on 3 ...
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 ...