MySQL & PgSql use syncer to support ha

[zheng-jx]

where is syncer? can't find source repository

[xuriwuyun]

Syncer, currently a private project, has built-in support for MySQL and PostgreSQL high availability (HA) replication. While Syncer is not open yet, you can experience its HA capabilities by using the mysql and official-postgresql addons in KubeBlocks.

[leefeipo]

Why does kubeblocks for MySQL update the heartbeat table kubeblocks.kb_health_check every second, but the TTL of the leader role is 60 seconds?

SQL parsed from binlog:
update kubeblocks.kb_health_check set check_ts=UNIX_TIMESTAMP() where type=1;

Leader pod log:
2026-02-09T08:20:15Z INFO HA This member is Cluster's leader
2026-02-09T08:20:15Z DEBUG HA Refresh leader ttl
2026-02-09T08:21:15Z INFO HA This member is Cluster's leader
2026-02-09T08:21:15Z DEBUG HA Refresh leader ttl
2026-02-09T08:22:15Z INFO HA This member is Cluster's leader
2026-02-09T08:22:15Z DEBUG HA Refresh leader ttl
2026-02-09T08:23:16Z INFO HA This member is Cluster's leader
2026-02-09T08:23:16Z DEBUG HA Refresh leader ttl
2026-02-09T08:24:16Z INFO HA This member is Cluster's leader
2026-02-09T08:24:16Z DEBUG HA Refresh leader ttl
2026-02-09T08:25:16Z INFO HA This member is Cluster's leader
2026-02-09T08:25:16Z DEBUG HA Refresh leader ttl
2026-02-09T08:26:16Z INFO HA This member is Cluster's leader
2026-02-09T08:26:16Z DEBUG HA Refresh leader ttl
2026-02-09T08:27:16Z INFO HA This member is Cluster's leader
2026-02-09T08:27:16Z DEBUG HA Refresh leader ttl
2026-02-09T08:28:16Z INFO HA This member is Cluster's leader
2026-02-09T08:28:16Z DEBUG HA Refresh leader ttl
2026-02-09T08:29:16Z INFO HA This member is Cluster's leader
2026-02-09T08:29:16Z DEBUG HA Refresh leader ttl