Load balancing deal with the techniques involved on using multiple systems to deal with high demands, balancing the load between those multiple systems. Questions deal with networking and server load balancing, using dedicated hardware or not.

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Nginx upstream never flagged as down in vts status

We have 2 physical server which are basically identical (for load balancing and failover) One physical server consist of a bunch of docker containers including 1 x NginX 2 x WebSphere 8.5.5.8 ...
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Implementation That can solve Fault tolerance and Scability problems? [on hold]

I'm looking for some implementations or free products (License Apache or equivalent) that can group : Load Balancing Phoenix Server Heartbeat (if a server is down, another one will take the lead) ...
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DSR on a DNS Cache Server… How

I have a doubt/problem. I have to set a DNS Cache Server that is behind a LB F5, i was asked to set 2 types of IPs, 1 IP is on 10.xx.xx.xx and its used to listen and reply all the cache store queries, ...
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21 views

How to config nginx as sticky loadbalancer for both http and https

I have the config below. However, when user switch from http to https, the session doesn't stick no more. Eg. homepage http but payment page is https. How do I solve this? upstream backend { ...
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1answer
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pacemaker virtual ip loadbalancing with clone and clusterip

I am trying to make a loadbalanced gateway for a group of natted machines. I have 3 centos nodes. Initially only one node was supposed to have the internal gateway ip and that works well. Traffic ...
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Application Gateway Load balancing mode

I have read in the docs (https://azure.microsoft.com/en-us/documentation/articles/application-gateway-introduction/) that the Load Balancers support sticky sessions where the client will always be ...
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NGINX PROXY 0000 1204 0000 0000 0000 0300 0000 8000

After last update of nginx all my pages are getting: 0000 1204 0000 0000 0000 0300 0000 8000 0400 0000 0000 0500 ffff ff00 0004 0800 0000 0000 7fff 0000 0000 0807 0000 0000 0000 0000 ...
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29 views

How to configure ELB load-balancer over HTTPS for two sites deployed to the same pair of servers?

I would appreciate immensely if you shed some light into what we might be missing or doing wrong. I am not completely in charge of the configuration, and I'm not an expert on the subject, but have ...
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25 views

Private Server & Random IP on each request

I have 4 Dedicated Servers (different companies). 1 is private and i don't want the IP to be revealed to anyone, and the other 3 are public. Every request is being executed by the Private Dedicated ...
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cluster server between two networks with connectivity of 95% of times [closed]

I have a server, now I want to cluster it between two networks, that 5% of times this two networks are disconnected from each other. I don't know what's happened in this interval. I read some about ...
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how use two diffrenet ISP Internet with mikrotik

i have two isp for internet with rhis ip : IS1:192.168.1.1 on ethernet 1 mikrotik ISP2:192.168.2.1 on ethernet 2 mikrotik and my local network LOcal IP : 192.168.10.0/24 on on ethernet 3 ...
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34 views

Load balancer questions

I have a website (ex: www.website.com) on aws that uses a large amount of streaming data (up to 10mbps / user). Lets say that my website is slowing down because the server simply cannot handle that ...
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51 views

High CPU load of my VPS [closed]

I use VPS from digitalocean. The configuration is: 8GB RAM, 4 Core Processor, 80GB SSD with cpanel installed. Most visitors are in the site http://www.secretdiarybd.com/bn . Which is on wordpress ...
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Java applet blocked?

I have a server application on GCE and is failing to load a Java applet to client side. Is there any GCE configuration to set? This happened after configure Load Balance with https and session ...
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19 views

How can load balancers balance >65k connections? [duplicate]

I don't understand many details of networking, but I find one part of my mental model significantly broken, and it bugs me. I think of a load balancer as a proxy in front of other systems. There is a ...
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17 views

HAProxy ACL with map 'src_http_req_rate' is neither a number nor a supported operator

I am using a map for storing the maximum request rate an IP can do in HAProxy. For example: ips.map #ip count 172.17.0.1 5 In HAProxy I want to limit the average number of requests to the ...
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1answer
120 views

Create a multi-homed linux load balancer with two internet connections and one LAN connection

OK,... this has possibly been answered, unfortunately, I have not found anything that looks like it might be the resolution. Ive looked at these pages and they have some useful information, but not ...
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32 views

Load balance two ADSL connections Centos 7

I have centos 7 server working as a gateway for my network with three LAN cards and two internet connections from different ISPs , i want to combine the two connections and balance the network load ...
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1answer
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What is the exact Juniper and Cisco router per-packet balancing hash algorithm?

Due to JunOS and Cisco documentation there is ability to configure hashing algorithm choosing one of the next-hop from the several multiple equal-cost paths. There is information about fields that ...
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58 views

AWS ELB with SSL backend adds proxy protocol inside SSL stream

Note, this has been also posted in http://thread.gmane.org/gmane.comp.web.haproxy/27737 we are trying to configure this architecture: ELB terminating SSL, using preconfigured certificates. ...
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1answer
17 views

IIS 6 on Windows 2003 to IIS 8 on Windows 2012 migration RSS

We are migrating applications on Windows 2003 IIS 6 Webfarm to IIS 8 on Windows 2012 as W2K3 has reached EOS. We have a single website under which there are 40 applications on a intranet web farm (4 ...
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83 views

How to run a Parse Live Query Server (Web Sockets) behind an AWS Load Balancer?

ParseLiveQuery depends on Websockets. More generically this question could be about getting web sockets to work behind an AWS ELB. I'm using the new Parse Server configured in AWS using Elastic ...
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23 views

Use haproxy to redirect *.domain1.com/* to *.domain2.com/*

I am struggling with some HAproxy rules for a while with no luck unfortunately. Let's say I have domain1.com and domain2.com. I want to redirect everything from domain1.com to domain2.com, including ...
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21 views

Is there any latest release or other option to use LVS load balancing? [duplicate]

i checked the official linux virtual server website and they havent updated or discontinued since 2014.So, i cant find documentations for 4.5.X kernels. Is squid or HA proxy better alternative to LVS ...
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Why does benchmarking from a different virtualbox give 1/4 of req/s compared to from localhost?

I am trying to make sense of benchmarking results and how I should loadbalance in a way that makes sense performance wise but the more I try the more I am frustrated. I have set up two Go/Golang ...
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Disable load balancing fortigate 100D

I have wan1 with static ip, wan2 ppoe Port 1 with address 192.168.1.0/24 Port 2 with address 10.0.0.0/24 I just want port 1 go through wan1 and port 2 go through wan 2. No load balancing Every time I ...
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DNS - Load Balancer - SINGLE Apache Server - Tomcat

This is my configuration, I have bought a domain in godaddy.com. Linked my Load Balancer[in Rackspace] IP in domain setting. Behind the Load Balancer, there is one active server which responds all ...
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24 views

Initial Elastic Load Balancer connections hang

I have an elastic load balancer running in front of a Go-based docker service that is on two machines. Every time I restart the Go service, the initial connections from some clients take minutes ...
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1answer
56 views

Is it possible to do direct server return DSR load balancing using virtual servers in the cloud?

Is it possible to do this kind of load balancing in the cloud say for example in Digital Ocean if all of my droplets are from the same data center? Or do I need some sort of physical device to do this ...
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1answer
42 views

Load balancer displays Error 404 page

I got the following configuration: upstream backend { server xx.azurewebsites.net; server xxx.azurewebsites.net; } server { listen 80 default_server; listen [::]:80 default_server; root ...
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1answer
26 views

How can I TCP (layer 4) load balance with haproxy and still do roundrobin or leastconn balancing?

I am trying to load balance with haproxy on VirtualBox just to see that things work as they should before I go on to set it up on Digital Ocean. I am able to decide how to balance requests when I ...
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How to maximize utilization of fluentd server?

I have a fluentd server that is processing an average of 1000 req/s. This server is composed by 32 cpus. In this server are running 32 fluentd docker containers with the same configuration. The entry ...
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1answer
43 views

SAVE IP ROUTE RULES AFTER REBOOT

I have two internet connections from two different ISPs and I need to balance & failover the traffic originating to and from my network between the two ISPs. My settings: FIRST ISP (eth0): ...
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Can I use twemproxy for load balancing by redis queue size?

Can I use twemproxy as a load balancer for a pool of redis instances, according to size of redis queue (amount of keys per instance)? Is twemproxy able to turn off from the upstream one of the redis ...
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1answer
42 views

Access local website without dns?

I got an nginx loadbalancer setup with 2 sites. The ip address of the loadbalancer is 192.168.123.10 I want to locally access the two sites to check if everything is working. But I'm a little puzzled ...
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26 views

Joining two layer-3 interfaces for failover

I have a Linux machine with two USB modems each with its own SIM card and public IP address. One of the modems may lose connectivity at some point and I want the connections to be as resilient as ...
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Putting ELB in from of my ECS Cluster / Service

I’m trying to put an ELB in from of my ECS service, using this terraform file But applying it, gives the below error. Any ideas on the setup that I’ve gotten wrong? $ terraform apply ... ...
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49 views

Windows Server 2012 WSFC and NLB together

I am looking to run a combination of WSFC and NLB in my service stack. I have a stateless service that I want to load-balance with NLB, and several "singleton" services that need to be run with ...
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Redis & HAProxy - updated configuration settings?

Have gotten 2 Redis instances installed, with one being a master. That is working remarkably well and with no headaches. I'm now trying to get my HAProxy/keepalived nodes to handle some sort of ...
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Why do I see external requests in my Apache server status?

I enabled Apache server status, so I see all URL requests at mysite.com/stats. I created a separate sub-domain hosted on another server, it is like: download.mysite.com And from main site, I link to ...
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18 views

AWS autoscaling triggers

I am going to move a very big wordpress website (in terms of DB) to AWS. And I would like to understand the autoscaling triggers in order to find the best balance between costs and performance. Are ...
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33 views

TCP Balancer active/standby active/passive

I have two Servers, Server A,ServerB. running as TCP socket server. I want to a active/standby or /active/passive failover. that means: 1:Server A and Server B Running, route ALL connection to ...
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Forbid reviving dead peers in Squid

How, I'm using Squid v3.3.8 and I need to create HTTP rotating proxy server to send all requests through set of predefined proxies (I'm automatically updating squid config to update set of working ...
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1answer
32 views

Docker UCP setting up loadbalancer problems :(

I'm having trouble configuring the proxy on my test docker UCP setup. I've got a 3 node test setup and only a single controller (so no HA) I downloaded the UCP client bundle inside my controller node ...
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Unable to find high RAM utilization on Linux server [duplicate]

I am having high RAM utilization issue with a dedicated Linux server used for shared hosting purpose. I am sharing the outputs of some commands which will make the issue more clear. root@live ...
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1answer
46 views

Squid cache_peer round-robin algorithm not working as expected

I have number of peer-to-peer HTTP proxies and I need to distribute my requests among them evenly, so I added multiple cache_peer directives and set round-robin as peer selection algorithm. This is my ...
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31 views

One domain, multiple apps, multiple load balancers on AWS?

The current setup looks like On a single EC2 instance, foo.web http/https traffic is handled by nginx, and routed based on: foo.web/bar/* requests are handled by app #2 all other foo.web requests ...
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21 views

Making HAProxy Pass a Host Name in HTTPCHECK

I am trying to perform HTTP Checks in HAProxy with a specific host name. Here is a snippet from my backend configuration: option httpchk HEAD / HTTP/1.1\r\nHost: example.com http-check expect ...
2
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1answer
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Automatic CPU load balancing for program or program group under Linux?

assume the following setup: system (Ubuntu 14.04 LTS) with 40 cores, lots of RAM. Additionally a program which is only partly multithreaded. That is, it constantly switches between running on multiple ...
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38 views

Nginx upstream returns «site unavailable», while they work

I use upstream and proxy for load balancing. [root@192.168.1.135 ~]# cat /etc/nginx/nginx.conf user nginx; worker_processes auto; error_log /var/log/nginx/error.log; pid /run/nginx.pid; events { ...