Documentation Home
MySQL 8.0 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 48.2Mb
PDF (A4) - 48.2Mb
PDF (RPM) - 43.8Mb
HTML Download (TGZ) - 11.0Mb
HTML Download (Zip) - 11.1Mb
HTML Download (RPM) - 9.5Mb
Man Pages (TGZ) - 239.8Kb
Man Pages (Zip) - 343.5Kb
Info (Gzip) - 4.4Mb
Info (Zip) - 4.4Mb
Excerpts from this Manual

MySQL 8.0 Reference Manual  /  ...  /  Securing Distributed Recovery Connections

18.5.3 Securing Distributed Recovery Connections

When a member joins the group, distributed recovery is carried out using a combination of a remote cloning operation, if available and appropriate, and an asynchronous replication connection. For a full description of distributed recovery, see Section 18.4.3, “Distributed Recovery”.

The connection that an existing member offers to a joining member for distributed recovery is not the same connection that is used by Group Replication for communication between online members of the group. Up to MySQL 8.0.20, group members offer their standard SQL client connection to joining members for distributed recovery, as specified by MySQL Server's hostname and port system variables. From MySQL 8.0.21, group members may advertise an alternative list of distributed recovery endpoints as dedicated client connections for joining members. For more details, see Section, “Connections for Distributed Recovery”.

To secure distributed recovery connections in the group, ensure that user credentials for the replication user are properly secured, and use SSL for distributed recovery connections if possible.