Troubleshooting HAE Cluster Membership

This document (7015225) is provided subject to the disclaimer at the end of this document.

Environment

SUSE Linux Enterprise High Availability Extension
SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Server 10

Situation

Cluster redundancy requires unique bind addresses with multiple interfaces. Unique multicast ports are also preferred. Partial totem sections from /etc/corosync/corosync.conf for invalid or discouraged configurations follow.

totem {
    rrp_mode:    passive
    transport:    udp
    version:    2
    interface {
        bindnetaddr:    192.168.64.0
        mcastaddr:    239.52.65.210
        mcastport:    5410
        ringnumber:    0
    }
    interface {
        bindnetaddr:    192.168.64.0
        mcastaddr:    239.52.65.211
        mcastport:    5411
        ringnumber:    1
    }
}

totem {
    rrp_mode:    passive
    transport:    udpu
    version:    2
    interface {
        bindnetaddr:    10.1.0.0
        member {
            memberaddr:    10.1.0.2
        }
        member {
            memberaddr:    10.1.0.3
        }
        mcastport:    5405
        ringnumber:    0
    }
    interface {
        bindnetaddr:    172.16.0.0
        member {
            memberaddr:    172.16.1.1
        }
        member {
            memberaddr:    172.16.1.2
        }
        mcastport:    5405
        ringnumber:    1
    }
}

Resolution

The bindnetaddr values must be unique among interfaces. For optimal troubleshooting, the mcastport should likewise be unique. Corrected examples follow.

totem {
    rrp_mode:    passive
    transport:    udp
    version:    2
    interface {
        bindnetaddr:    172.16.2.0
        mcastaddr:    239.52.65.210
        mcastport:    5410
        ringnumber:    0
    }
    interface {
        bindnetaddr:    192.168.64.0
        mcastaddr:    239.52.65.211
        mcastport:    5411
        ringnumber:    1
    }
}

and

totem {
    rrp_mode:    passive
    transport:    udpu
    version:    2
    interface {
        bindnetaddr:    10.1.0.0
        member {
            memberaddr:    10.1.0.2
        }
        member {
            memberaddr:    10.1.0.3
        }
        mcastport:    5405
        ringnumber:    0
    }
    interface {
        bindnetaddr:    172.16.0.0
        member {
            memberaddr:    172.16.1.1
        }
        member {
            memberaddr:    172.16.1.2
        }
        mcastport:    5406
        ringnumber:    1
    }
}

Additional Information

The mcastport values do not need to be unique, but it helps when reading a LAN trace to isolate the traffic on that interface by port number.

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

Document ID:7015225
Creation Date: 18-Jun-2014
Modified Date:28-Sep-2022
- SUSE Linux Enterprise High Availability Extension
- SUSE Linux Enterprise Server

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