Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [lvs]

LVS is the Linux Virtual Server, www.linuxvirtualserver.org. It offers persistent load balancing built ontop of the linux kernel.

http://www.linuxvirtualserver.org

96 questions
0
votes
1 answer

KVM-LVMs from the VMs appears on the host system

I'm experiencing a strange issue, after I extended the HP RAID array This server acts as a hypervisor (CentOS - KVM) and I'm using logical volumes for the KVM guests. When I check the physical volumes (pvs) on the hypervisor - for some reason it…
HTF
  • 3,148
  • 14
  • 52
  • 82
0
votes
1 answer

LVS / IPVS difference in ActiveConn since upgrading

I've recently migrated from an old version of LVS / ldirectord (Ultra Monkey) to a new Debian install with ldirectord. Now the amount of Active Connections is usually higher than the amount of Inactive Connections, it used to be the other way…
Hans
  • 1
  • 3
0
votes
1 answer

Is there a way to tell keepalived to make a health check immediately?

We have a high-availability setup in which lvs distributes requests between a set of backend servers ('realservers' in LVS-speak). LVS is managed by keepalived. Each realserver exposes a health check resource over HTTP (basically, if you say GET…
Tom Anderson
  • 407
  • 3
  • 12
0
votes
1 answer

Lvs Load balancer VIP

I have created an alias IP address of my computer using sudo ifconfig eth0:0 172.17.10.173 netmask 255.255.240.0 broadcast 172.17.15.255 My orignal IP is 172.17.6.111 and netmask is 255.255.240.0. I am trying to set up an Load balance using…
Anubhav Agarwal
  • 1,603
  • 2
  • 10
  • 6
0
votes
1 answer

ipvs based lvs system, is there going to be very high load on the front server?

there are 4 servers with the same hardware configurations, and a ipvs based lvs system is constructed on these 4 servers using NAT. my question is simple: will there be very high load on the front server which was in charge of transferring traffic…
xpu
  • 103
  • 1
  • 1
  • 6
0
votes
2 answers

Distributing mysql connections with ldirectord

I'm using ldirectord with heartbeat for mysql load balancing. It is distributing mysql connections equally to all servers available in the pool but sometime slave remains in the pool even after encountering a Too many connections error. There should…
Email geek
  • 67
  • 1
  • 8
0
votes
2 answers

LVS & persistence (problem with IP)

I would like to understand the LVS persistence. For me, all the client with the same address ip will go to the same server until the end of the timeout. And if clients are behind a provider/proxy/firewall or public addresses, they all go to the…
tranen
  • 1
  • 1
0
votes
0 answers

LVS persistence

I install LVS with persistence. It's work well but I would like to understand the persistence. For me, all the client with the same address ip will go to the same server until the end of the timeout. But what's happened if clients are behind a…
tranen
  • 1
0
votes
2 answers

conntrack with LVS

I'm trying to use conntrack ftp with lvs (snat), documentations say that I need to echo "1" > /proc/sys/net/ipv4/vs/conntrack but this file doesn't exist on my system, do you know why ? I already loaded nf_nat_ftp and ip_vs_ftp # ls…
profy
  • 1,146
  • 9
  • 20
0
votes
2 answers

Linux Virtual Server : Config Questions?

need some advice before i go running into LVS only to find its not what i want. im looking to replace our current load balancing software (XR or crossroads as its also know). as we are getting a lot of unexpected crashes randomly from the software.…
Kristiaan
  • 442
  • 1
  • 9
  • 22
0
votes
3 answers

How to find the real IP to which IPVS is routing a virtual IP

I'm trying to find a problem server hiding behind a virtual IP (using LVS/ipvs). I've got a test program that sends requests to the virtual IP until it gets the bad response, but how can I tell to which real IP a request to the virtual IP got…
Wayne Conrad
  • 675
  • 1
  • 7
  • 20
0
votes
1 answer

Pacemaker monitoring mysql

I have Pacemaker+Corosync set up to manage a shared IP address between two Mysql boxes in Master-Master/Active-Passive setup (using interleaved primary keys). I have Pacemaker set up to manage the shared IP between the two machines, however, it…
davidsmalley
  • 457
  • 1
  • 6
  • 14
0
votes
2 answers

NFS or GFS for LVS 10 Server Setup

Currently we have a 10 servers setup as a linux virtual server. We have: 2 Load Balancers (master / slave) 3 Web Servers 2 MySQL Servers (master / slave) 2 Central File Storage Servers (master / slave) 1 Video Converter (irrelevant). The people we…
Michael Robinson
  • 428
  • 2
  • 7
  • 20
0
votes
0 answers

persistence_timeout break the LB logic in Keepalived

In a DR mode load balancer configuration with ipvsadm + keepalived, persistence_timeout n value making unexpected issues. I have two real servers configured (web - port 80) for testing purpose. When I enable persistence_timeout with 2 or 7200,…
Luke Devon
  • 7
  • 4
0
votes
0 answers

Basic LVS implementation

I am testing a basic lvs/ipvsadm implementation. 192.168.1.200 is the Loadbalance Director (Master LB), At the moment I am not testing a VIP. 1.1 enabled sysctl -w net.ipv4.ip_forward=1 in the Loadbalance Director 1.2 firewall-cmd --permanent…
Luke Devon
  • 7
  • 4
1 2 3 4 5
6
7