bee253e337
By default ProxySQL's default value of max_replication_lag is 0 which is in fact disabling this feature [1]. If it is greater than 0, ProxySQL will regularly monitor replication lag and if it goes beyond the configured threshold it will temporary shun the host until replication catches up. This should be configurable via kolla-ansible as every openstack deployment can be different in terms of network delays, database load etc.. , so user should have option to configure when database backend will be shunned. [1] https://proxysql.com/documentation/main-runtime/ Change-Id: I66171638abc712cb84b380042f1d29f54c499e73 |
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proxysql |