Search Engine: Elastic

Article ID: 131784, created on Nov 17, 2017, last review on Nov 17, 2017

  • Applies to:
  • Operations Automation 7.2

Symptoms

  1. All sites residing UI cluster does not work.
  2. Apache runs on every UI node and answers the URL requests.
  3. LB malfunctions - and does not allow to curl the website from cluster:

    [root@lb ~]# curl -k brand01.com
    curl: (7) couldn't connect to host
    
  4. ipvsadm show no active connections with web servers:

    [root@lb ~]# ipvsadm -L
    IP Virtual Server version 1.2.1 (size=4096)
    Prot LocalAddress:Port Scheduler Flags
      -> RemoteAddress:Port           Forward Weight ActiveConn InActConn
    FWM  100 wlc persistent 900 mask 255.255.255.0
      -> 203.0.113.2:0              Route   32     0          0
      -> 203.0.113.3:0              Route   32     0          0
    
  5. Service iptables is stopped.

Cause

Stopped iptables service does not allow Load Balancer working properly as it contains the routing rules required for the functioning.

Resolution

Start iptables service:

/etc/init.d/iptables start

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