added preStop hook to DB statefulset

The preStop hook will call pg_ctl with -m fast flag - this will rollback all active transactions and stop the server. by default postgres will wait for all active connections to complete before exiting. the default grace period of kuberentes for pod shutdown is 30 seconds and after that it sends SIGKILL to the process. this can lead to DB failures Signed-off-by: Danny Zaken <[email protected]>
red-hat-storage · Dec 11, 2023 · 92e187c · 92e187c
1 parent bbef9b2
commit 92e187c
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/pkg/system/phase2_creating.go b/pkg/system/phase2_creating.go
@@ -309,6 +309,15 @@ func (r *Reconciler) SetDesiredNooBaaDB() error {
 			if r.NooBaa.Spec.DBResources != nil {
 				c.Resources = *r.NooBaa.Spec.DBResources
 			}
+
+			c.Lifecycle = &corev1.Lifecycle{
+				PreStop: &corev1.LifecycleHandler{
+					Exec: &corev1.ExecAction{
+						Command: []string{"/bin/sh", "-c", "pg_ctl -D /var/lib/pgsql/data/userdata/ -w -t 60 -m fast stop"},
+					},
+				},
+			}
+
 		}
 	}