an open source daemon that implements the VRRP standard.

learn more… | top users | synonyms

2
votes
1answer
2k views

Centos 7 - Keepalived Linux Virtual Server is not working

Environment: Centos 7 Keepalived Machine I enp0s3 --> 192.168.1.38 (connects to the outside world) en0s8 --> 192.168.100.101 (connects to internal network) Machine II enp0s3 --> 192.168.100....
1
vote
1answer
494 views

Keepalived unwanted transition to master

I'm starting 2 EC2 intances in Amazon with Cloudformation, the second instance starts about 30 seconds after the first one. The configuration looks like this : Instance 2 state BACKUP ...
0
votes
0answers
489 views

Keepalived router on virtual ip is not reachable

I've setup keepalived to manage a virtual ip between two hosts. My setup is the following Server #1: Hostname folmer, ip 192.168.0.1/22 dev p2p1 Server #2: Hostname flemming, ip 192.168.0.2/22 dev ...
1
vote
1answer
400 views

Keepalived: NAT VIP for internal network unused?

I'm building a proof-of-concept loadbalancer with CentOS 7 and keepalived. I took Red Hat's load balancer administration guide as a reference and implemented a NAT'ed loadbalancer with 2 nodes which ...
2
votes
1answer
171 views

Keepalived (LVS) + SPDY

I've got Keepalived configured with LVS to spread the load between four Nginx web servers (RR mode, no persistence connections). I was planning to enable SPDY however it seems that SPDY sets up a ...
1
vote
1answer
2k views

keepalived track_script doesn't seem to run

I'm hoping someone can see what I'm doing wrong and offer help to get a keepalived track_script to run. I have the priority set to 101 on the vrrp_instance of the primary keepalived box and 100 on ...
3
votes
2answers
2k views

VIP not dropping from backup keepalived

I may not be understanding how this is supposed to work, but I can't figure out why the BACKUP system with this basic vrrp_instance is transitioning to master right away and never seems to honor the ...
2
votes
1answer
1k views

Keepalived load balancing MySQL. Backup server time-out

Dear beloved people at ServerFault. I'm trying (and failing) to setup a load balanced MySQL server array. Please enlighten me, show me the error in my ways. Current setup: two MySQL servers with ...
1
vote
1answer
972 views

should a virtual interface clash with keepalived?

I was working on a server today, debian squeeze. After testing this on two staging servers, I added a virtual network interface to /etc/network/interfaces like this: # The primary network interface ...
1
vote
1answer
1k views

keepalived failover virtual ip parameters

I have two servers (A-master and B-backup) with one virtual ip. I need to assign the virtual ip to server B in case server A fails. For this I'm trying to configure keepalived. server A virtual ip ...
1
vote
1answer
1k views

Multimaster Keepalived Configuration (Virtual IP with Load Balancing)

Here are requirements: 1. High Availability 2. Load Balancing First configuration 1. Two linux servers have been configured with one static IP for each: 10.17.243.11, 10.17.243.12 2. Keepalived has ...
0
votes
2answers
613 views

Keepalived loses VIP upon power cycle of master

I have two servers running Keepalived 1.2.7 with hostnames left and right. Here are the configs: # keepalived.conf on left vrrp_instance VI_1 { state MASTER interface eth1 ...
-1
votes
1answer
162 views

What FLOSS linux software should I use for high-availability on an FTP server on vmware? [closed]

I don't mean this as an opinion-based question. I want to know if my assumption is correct to use a network-oriented tool (keepalived) as opposed to a cluster-oriented tool (heartbeat) in a scenario ...
1
vote
0answers
330 views

Keepalived configurations

I installed keepalived on two firewalls to provide fail over. I'm not sure if the following configurations are correct (see configurations below). Sometimes I have problems to reach the websites ...
0
votes
0answers
2k views

Keepalived: multicast vs unicast

I'm planning to deploy a several keepalived routers to maintain floating IPs for different database clusters. The plan is to deploy a separate VRRP instance on each cluster locally according to this ...
3
votes
1answer
4k views

keepalived: 2nd VRRP_Script never seems to run

I'm trying to implement keepalived on 3 mongodb boxes, the idea is that if mongod on one of the boxes goes down or we need to move the primary node to another system for some reason our application ...
1
vote
1answer
2k views

Keepalived sync daemon

I've enabled lvs_sync_daemon_interface option however it looks like sync daemon is not working Active node: [MASTER:~]# ipvsadm -Lnc IPVS connection entries pro expire state source ...
2
votes
3answers
3k views

HAProxy/Keepalived vrrp set up in AWS EC2 with EIP (Basic EC2)

I am a newbie to CentOS/Linux/HAProxy/Keepalived, so I have had a lot to learn over the past few days! I have 2 CentOS 6.5 servers in Amazon AWS running on their own EC2 Micro instances. I also have ...
3
votes
2answers
847 views

When a server IP changes, do exising TCP (e.g. http/mysql) connections remain running

We have some PHP-FPM servers and when they need a database connection, they connect to an HAProxy server which selects them a database server to use and the connection opens. When we then want to ...
0
votes
1answer
588 views

keepalived vip removed with dhcp renewal

I am having this strange issue where my vip is being removed from my interface when I receive a new DHCP renewal request. The logs shows the following: Jun 1 17:00:06 lb1 dhclient: DHCPREQUEST of 10....
0
votes
1answer
820 views

Keepalived + LVS not working from other hosts but working from localhost on LB

I've got a keepalived + LVS set up I'm trying to get to work Clients, LB and real servers are all on the same subnet. Keepalived config: global_defs { notification_email { admin@example....
0
votes
1answer
292 views

Which technique should be chosen for IP failover with manual control

I have the following setup, Linux stack, with front-end running nginx proxy and static assets and back-end running Ruby on Rails and MySQL in master-master replication: Primary site: front-end.a, ...
2
votes
1answer
779 views

keepalived - no connect and doesn't listen on ports?

Following servers: ....:100::10 mysql1 master ....:100::20 mysql2 master ....:100::30 loadbalancer (keepalived) with virtual ip ...:100::40 Config: vrrp_instance V1 { state MASTER ...
2
votes
1answer
3k views

Any problems with having an active/active HAProxy setup with Keepalived

Apologies if this has been asked before, but I can't seem to find much on it. We're going to be using HAProxy to load balance our MariaDB Galera Cluster. All the articles/tutorials I have seen on ...
1
vote
0answers
1k views

keepalived - random re-elections

We have set up 3 servers running keepalived . We started noticing some random re-elections occurring which we can't explain so I cam here looking for advice. Here is our configuration: MASTER: ...
2
votes
2answers
6k views

View Current State of Keepalived

Is there a way to view the current state (Master/Backup) using a command line inside a server instance? Cheers
2
votes
2answers
18k views

HAproxy 503 Service Unavailable No server is available to handle this request

I'm new to this load balancing scenario and I'm being tasked to figure out how to make this load balancing works. My environment: Centos 6.4 64 Bit Webserver: Lighttpd All running in ESXI virtual ...
2
votes
1answer
3k views

KeepAliveD, Rackspace Cloud, Unicast - both LB's enter MASTER state…?

I have set up two HAProxy Load Balancers in an Active->Passive pair. KeepAliveD will be used for failover between MASTER and BACKUP servers. Like most clouds, Multicast is not supported so I cannot ...
0
votes
1answer
126 views

Make keepalived send 0 priority when going to FAULT state

When stopping (service keepalived stop), keepalived does send the priority 0 adverts so the backup server takes over almost immediately. However, when it goes to fault mode (check script returns not ...
2
votes
0answers
825 views

Keepalived not re-adding real servers

I'm trying to setup a simple virtual server in Keepalived and when the servers get removed from the pool, they do not get re-added automatically. In the Keepalived server syslog I see: Oct 01 11:37:...
0
votes
1answer
691 views

keepalived doing a lot of TCP DUP ACK and TCP Retransmission

I'm trying to replicate the setup our hosting provider have done for our load balancer, which is using keepalived. So I have one "load balancer", running CentOS 6 and keepalived 1.2.7, with two Web ...
-1
votes
1answer
1k views

LVS Keepalived connection between master and backup [closed]

I configured two lvs keepalived servers. The first is master server, ip 10.1.88.76, iptables closed. The second is backup server, ip 10.1.88.77, iptables closed. the network connection between two ...
0
votes
2answers
11k views

Both servers running keepalived become master and have a same Virtual IP

Both two servers started keepalived, and the BACKUP server transited to MASTER STATE immediately. both two became MASTER now. Both two nodes are sending VRRP advertisement msg. on master server: [...
1
vote
0answers
297 views

Keepalived, Junos, and ARP caching

I'm trying to configure an active-passive stunnel setup, with the aid of Keepalived, for a public IP address at our company datacenter. I would like to know if a router or switch reconfiguration is ...
4
votes
2answers
3k views

Per-packet round-robin load balancing for UDP

I need to load-balance UDP traffic between a number of "realservers" and do it in a truly round-robin fashion. I've started with keepalived, but unexpectedly discovered, that LVS treats UDP traffic as ...
0
votes
1answer
277 views

IP-based load balancing on external and internal interface

I have a certain distributed (as in, multiple components on multiple machines) service, that should be made available from the outside world. So, in LVS terminology, the clients are "on the internet", ...
1
vote
3answers
2k views

keepalived wont start

I have compiled and configured keepalived but it won't start. This is my very basic config; vrrp_sync_group PUBLIC_WEB_IPS { group { public_http_ip_lan ...
3
votes
4answers
5k views

keepalived nopreempt option not working

I want to use nopreempt option with keepalived vrrp setting to run backup node as master when master goes down and again reback into network. I setup nopreempt option in both servers and set state as ...
4
votes
0answers
706 views

keepalived config is not working correctly with virtualbox vms

my keepalived configuration is not working correctly. I have two virtual testing machines (virtualbox) to try some things out with keepalived/vrrp. Bot can ping each other flawlessly (internal ...
5
votes
1answer
3k views

haproxy and keepalived on Amazon EC2

The new Amazon Opsworks service uses haproxy rather than Amazon's own very limited elastic load-balancer so I started investigating haproxy as a better option for load-balancing our web app servers, ...
0
votes
1answer
245 views

Can I use virtual IP in EC2 VPC?

I'm trying to get keepalived working in Amazon's EC2 VPC. But I cannot. Is it possible to use virtual IP in EC2 VPC? Or how can I use keepalived in EC2 VPC?
2
votes
1answer
2k views

keepalived 2 VIP and 2 servers

Is it possible to configure keepalived in such a way? In normal state VIP_1 assigned to SERVER_1 and VIP_2 assigned to SERVER_2 On server failure all VIP's going to working server, and after failed ...
3
votes
1answer
376 views

Virtual IP Failover when machine is overloaded

We have been using keepalived in combination with a virtual IP address for two years now. In the rare case that a machine crashes this works very well. But when there are issues on the box itself we ...
1
vote
1answer
5k views

Keepalived's virtual_router_id - should it be unique per node?

I have two nodes running keepalived, and two VIP, e.g. Node 1 Node 2 VIP1 VIP2 So in each node, I have two definition of vrrp_instance, so I assume the two vrrp_instance in my ...
0
votes
1answer
2k views

Keepalived: Highest weight only scheduling

I have a keepalived setup with three servers behind an ip. One is setup as a sorry server and only serves the maintenance pages, the other two are actual app servers. We would like it setup so that ...
0
votes
1answer
1k views

Keepalived in ring architecture, or other better approach

I have three load balancer (LB1, LB2, LB3) and plan to use ring architecture for active-active setup, e.g. LB1 LB2 LB3 IP1 IP2 IP3 Idea as below: If LB1 failed, IP1 will be floated to ...
0
votes
3answers
1k views

keepalived not starting and complaining about not set virtual id

I installed on a ubuntu 12.10 server the keepalived package and configured it, but it complains later in the syslog, that a virtual id must be set Keep alive configuration # Define the script used ...
2
votes
1answer
427 views

ipvsadm lists a few hosts by IP only, rest by name

We use keepalived to manage our Linux Virtual Server (LVS) load balancer. The LVS VIPs are setup to use a FWMARK as configured in iptables. virtual_server fwmark 300000 { delay_loop 10 ...
1
vote
1answer
218 views

query keepalived

*Note: I have trouble deciding what should go in serverfault and what should go in superuser, if some kindly admin decides this is in the wrong place please move it for me - many thanks. I am ...
4
votes
2answers
2k views

UCARP: prevent the original master from taking over the VIP when it comes back after failure?

Keepalived can do this by combining the nopreempt option and the BACKUP state on the both nodes: Prevent VRRP Master from becoming Master once it has failed Prevent master to fall back to master ...