NetScaler Displays - "[Warning]: Force Failover may cause configuration loss, peer health not optimum"

NetScaler Displays - "[Warning]: Force Failover may cause configuration loss, peer health not optimum"

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Article ID: CTX125720

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Updated On:

Description

When you attempt to force failover a NetScaler high availability setup, the following warning message is displayed:
[Warning]: Force Failover may cause configuration loss peer health not optimum
Please confirm whether you want force-failover (Y/N)? [N]:

Resolution

The preceding warning message might be displayed due to any of the following conditions. You can use this information to determine the next set of troubleshooting steps to resolve this issue.

  • If there is a synchronization failure between the appliances.
    When you display the status of the high availability nodes by running the following command, the output of the command displays the synchronization status as FAILED:
    > sh node

    1) Node ID: 0
    IP: 10.217.146.190 (ReproEV-05_NS-190)
    Node State: UP
    Master State: Primary
    INC State: DISABLED
    Sync State: ENABLED
    Propagation: ENABLED
    Enabled Interfaces : 1/1 1/2
    Disabled Interfaces : 1/3 1/4 0/1
    HA MON ON Interfaces : 1/1 ½
    SSL Card Status: UP
    Hello Interval: 200 msecs
    Dead Interval: 3 secs
    Node in this Master State for: 0:0:4:1 (days:hrs:min:sec)
    2) Node ID: 1
    IP: 10.217.146.191
    Node State: UP
    Master State: Secondary
    INC State: DISABLED
    Sync State: FAILED
    Propagation: ENABLED
    Enabled Interfaces : 1/1 1/2
    Disabled Interfaces : 1/3 1/4 0/1
    HA MON ON Interfaces : 1/1 ½
    SSL Card Status: UP
    
    Local node information:
    Critical Interfaces: 1/1 1/2
    Done
  • If the peer appliance is not detected or has failed.
    When you display the status of the high availability nodes by running the following command, the output of the command displays the peer node status as NOT UP:
    > sh node

    1) Node ID: 0
    IP: 10.217.146.190 (ReproEV-05_NS-190)
    Node State: UP
    Master State: Primary
    INC State: DISABLED
    Sync State: ENABLED
    Propagation: ENABLED
    Enabled Interfaces : 1/1 1/2
    Disabled Interfaces : 1/3 1/4 0/1
    HA MON ON Interfaces : 1/1 1/2
    SSL Card Status: UP
    Hello Interval: 200 msecs
    Dead Interval: 3 secs
    Node in this Master State for: 0:20:43:30 (days:hrs:min:sec)
    2) Node ID: 1
    IP: 10.217.146.191
    Node State: NOT UP
    Master State: Secondary
    INC State: DISABLED
    Sync State: SUCCESS
    Propagation: ENABLED
    Enabled Interfaces : 1/1 1/2
    Disabled Interfaces : 1/3 1/4 0/1
    HA MON ON Interfaces : 1/1 1/2
    Interfaces causing Partial Failure: 1/1
    SSL Card Status: UP
    
    Local node information:
    Critical Interfaces: 1/1 ½
    Done
      • If the peer appliance is set to stay as secondary.
        When you display the status of the high availability nodes by running the following command, the output of the command displays the peer node status as STAYSECONDARY:
        > sh node

        1) Node ID: 0
        IP: 10.217.146.190 (ReproEV-05_NS-190)
        Node State: UP
        Master State: Primary
        INC State: DISABLED
        Sync State: ENABLED
        Propagation: ENABLED
        Enabled Interfaces : 1/1 1/2
        Disabled Interfaces : 1/3 1/4 0/1
        HA MON ON Interfaces : 1/1 1/2
        SSL Card Status: UP
        Hello Interval: 200 msecs
        Dead Interval: 3 secs
        Node in this Master State for: 0:20:48:56 (days:hrs:min:sec)
        2) Node ID: 1
        IP: 10.217.146.191
        Node State: STAYSECONDARY
        Master State: Secondary
        INC State: DISABLED
        Sync State: SUCCESS
        Propagation: ENABLED
        Enabled Interfaces : 1/1 1/2
        Disabled Interfaces : 1/3 1/4 0/1
        HA MON ON Interfaces : 1/1 1/2
        SSL Card Status: UP
        
        Local node information:
        Critical Interfaces: 1/1 1/2
        Done
        
        
        
      • There should not be any missing heartbeats on the interfaces and HA monitoring should be disabled on all the disabled/down interfaces

      Issue/Introduction

      This article contains information about failover warning message for NetScaler high availability feature and the conditions in which the message is displayed.