11167: Merge branch 'master' into 11167-wb-remove-arvget

[arvados.git] / services / ws / event_source.go

diff --git a/services/ws/event_source.go b/services/ws/event_source.go
index 7c1b58492dd030ef6b579abe8b699d787a758cc2..cfb828b2a5d84c6d16407866374e1f4900185f84 100644 (file)
--- a/services/ws/event_source.go
+++ b/services/ws/event_source.go
@@ -1,3 +1,7 @@
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
 package main
 
 import (
@@ -239,9 +243,17 @@ func (ps *pgEventSource) NewSink() eventSink {
 }
 
 func (ps *pgEventSource) DB() *sql.DB {
+       ps.WaitReady()
        return ps.db
 }
 
+func (ps *pgEventSource) DBHealth() error {
+       ctx, cancel := context.WithDeadline(context.Background(), time.Now().Add(time.Second))
+       defer cancel()
+       var i int
+       return ps.db.QueryRowContext(ctx, "SELECT 1").Scan(&i)
+}
+
 func (ps *pgEventSource) DebugStatus() interface{} {
        ps.mtx.Lock()
        defer ps.mtx.Unlock()
@@ -257,6 +269,7 @@ func (ps *pgEventSource) DebugStatus() interface{} {
                "QueueDelay":   stats.Duration(ps.lastQDelay),
                "Sinks":        len(ps.sinks),
                "SinksBlocked": blocked,
+               "DBStats":      ps.db.Stats(),
        }
 }