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Use Patroni API to set bootstrap-only options. (#299)

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Call Patroni API /config in order to set special options that are
ignored when set in the configuration file, such as max_connections.
Per https://github.com/zalando-incubator/postgres-operator/issues/297

* Some minor refacoring:

Rename Cluster ManualFailover to Swithover
Rename Patroni Failover to Switchover
Add more details to error messages and comments introduced in this PR.

Review by @zerg-junior
This commit is contained in:
Oleksii Kliukin
2018-05-29 12:35:25 +02:00
committed by GitHub
parent 24df918dda
commit 48a5744314
6 changed files with 85 additions and 17 deletions
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pkg/cluster/cluster.go
+3 -3
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@@ -866,8 +866,8 @@ func (c *Cluster) GetStatus() *spec.ClusterStatus {
}
}
// ManualFailover does manual failover to a candidate pod
func (c *Cluster) ManualFailover(curMaster *v1.Pod, candidate spec.NamespacedName) error {
// Switchover does a switchover (via Patroni) to a candidate pod
func (c *Cluster) Switchover(curMaster *v1.Pod, candidate spec.NamespacedName) error {
c.logger.Debugf("failing over from %q to %q", curMaster.Name, candidate)
podLabelErr := make(chan error)
@@ -889,7 +889,7 @@ func (c *Cluster) ManualFailover(curMaster *v1.Pod, candidate spec.NamespacedNam
}
}()
if err := c.patroni.Failover(curMaster, candidate.Name); err != nil {
if err := c.patroni.Switchover(curMaster, candidate.Name); err != nil {
close(stopCh)
return fmt.Errorf("could not failover: %v", err)
}