On 11/3/22 15:55, Joanna Xu wrote:
Hi All,
We have PostgreSQL master-slave replication configuration with 4 servers.
After shutting down one standby server, we found below errors on all other
3 servers and the applications couldn’t access the database due to the
timeout.
DAO-00002 datasource connection failure:Time out waiting for a
DefaultDataSource
ERROR SQLException code: 0 SQLState: null
What could be the cause of the errors? Would anyting be helpful to prevent
it from happening?
Synchronous or asynchronous replication?
Go to the database server and look in /*it's*/ logs.
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