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26.12.11.9 The replication_group_members Table

This table shows network and status information for replication group members. The network addresses shown are the addresses used to connect clients to the group, and should not be confused with the member's internal group communication address specified by group_replication_local_address.

The replication_group_members table has the following columns:

  • CHANNEL_NAME

    Name of the Group Replication channel.

  • MEMBER_ID

    Identifier for this member; the same as the server UUID.

  • MEMBER_HOST

    Network address of this member (host name or IP address). Retrieved from the member's hostname variable.

  • MEMBER_PORT

    Port on which the server is listening. Retrieved from the member's port variable.

  • MEMBER_STATE

    Current state of this member; can be any one of the following:

    • OFFLINE: The group replication plugin is installed but has not been started.

    • RECOVERING: The server has joined a group from which it is retrieving data.

    • ONLINE: The member is in a fully functioning state.

  • MEMBER_ROLE

    Role of the member in the group, either PRIMARY or SECONDARY.

  • MEMBER_VERSION

    MySQL version of the member.

The replication_group_members table has these indexes:

  • None

TRUNCATE TABLE is not permitted for the replication_group_members table.


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