Section 18.6.3.2, “Secure Socket Layer (SSL) Connections for Distributed Recovery” SSL and Authentication for Distributed Recovery 

## group_replication_recovery_zstd_compression_level 

Compression for Distributed Recovery Section 4.2.8, “Connection Compression Control” Section 18.9, “Group Replication System Variables” Section 18.7.3, “Message Compression” Monitoring Binary Log Transaction Compression 

## group_replication_single_primary_mode 

Section 18.3.2, “Group Replication Limitations” Section 18.9, “Group Replication System Variables” Section 18.1.3, “Multi-Primary and Single-Primary Modes” Section 18.1.3.2, “Multi-Primary Mode” Section 18.1.3.1, “Single-Primary Mode” 

## group_replication_ssl_mode 

Section 18.9, “Group Replication System Variables” Section 18.6.3.2, “Secure Socket Layer (SSL) Connections for Distributed Recovery” Section 18.6.2, “Securing Group Communication Connections with Secure Socket Layer (SSL)” SSL and Authentication for Distributed Recovery 

## group_replication_start_on_boot 

Cloning Operations Section 18.2.1.2, “Configuring an Instance for Group Replication” Section 18.7.6.4, “Exit Action” Section 18.7.6.1, “Expel Timeout” Section 18.10, “Frequently Asked Questions” Section 18.9, “Group Replication System Variables” Prerequisites for Cloning Providing Replication User Credentials Securely Section 13.4.3.1, “START GROUP_REPLICATION Statement” Section 18.8.3.2, “Upgrading a Group Replication Member” Section 18.2.1.3, “User Credentials For Distributed Recovery” 

## group_replication_tls_source 

Section 18.9, “Group Replication System Variables” 

## group_replication_transaction_size_limit 

Section 18.3.2, “Group Replication Limitations” Section 18.9, “Group Replication System Variables” Section 18.7.4, “Message Fragmentation” 

## group_replication_unreachable_majority_timeout 

Section 2.11.4, “Changes in MySQL 8.0” Section 18.7.6.4, “Exit Action” Section 18.9, “Group Replication System Variables” Section 18.7.6.2, “Unreachable Majority Timeout” 

## group_replication_view_change_uuid 

Section 18.9, “Group Replication System Variables” 

