From 029a4bec6b11fdfcda10457bacdac0136a9f871a Mon Sep 17 00:00:00 2001
From: Aolin <aolin.zhang@pingcap.com>
Date: Tue, 14 Mar 2023 18:15:08 +0800
Subject: [PATCH] pd control: add service-gc-safepoint command

Signed-off-by: Aolin <aolin.zhang@pingcap.com>
---
 pd-control.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/pd-control.md b/pd-control.md
index 109bee70f0f34..aec8b63b74081 100644
--- a/pd-control.md
+++ b/pd-control.md
@@ -916,6 +916,23 @@ Usage:
     scheduler config balance-hot-region-scheduler set enable-for-tiflash true
     ```
 
+### `service-gc-safepoint`
+
+Use this command to query the current GC safepoint and service GC safepoint. The output is as follows:
+
+```bash
+{
+  "service_gc_safe_points": [
+    {
+      "service_id": "gc_worker",
+      "expired_at": 9223372036854775807,
+      "safe_point": 439923410637160448
+    }
+  ],
+  "gc_safe_point": 0
+}
+```
+
 ### `store [delete | cancel-delete | label | weight | remove-tombstone | limit ] <store_id> [--jq="<query string>"]`
 
 For a jq formatted output, see [jq-formatted-json-output-usage](#jq-formatted-json-output-usage).