Re: How do you manage cluster replication and failover ?

hi robin,
      All ur words is just one thing - pgpool II.     The project also contains Admin UI.      U can download and try it.
steven 
-------- 原始訊息 --------自： Robin LUCBERNET <rlucbernet(at)maltem(dot)com> 日期： 2017/4/6 17:17 (GMT+08:00) 至： pgsql-admin(at)postgresql(dot)org 主旨： [ADMIN] How do you manage cluster replication and failover ?

Hello,

We are currently trying to setup a multi hosts databases cluster with goals:

 * replication (no data-loss is "required", replication timing do not needs to be instant)

 * failover

 * load-balancing (bonus)

We tried:

 * synchronious replication (pgpool replication mode) + load-balancing (pgpool) : very interesing as we can theorically failover on any node at any moment. But even after several configuraation tweeks, we never succeed getting good write performance.

 * asynchronious replication (postgres 9.6 streaming replication) : good write performance, good replication timings (< 1 second for small transactions). We could loadbalance select requests using pgpool.

How do you manage your postgresql clusters ? Do you use pgpool ? pgbouncer ? other ?

How do you manage to single access point ? usign pgpool ? pgbouncer ?

Do you use streaming replication ? WAL archiving ? How do you handle to automatic failover ?

Robin