[skip ci]Update chap06_root_coordinator.md (#11944)

Signed-off-by: ruiyi.jiang <ruiyi.jiang@zilliz.com>
2021-11-17 15:59:21 +08:00 · 2021-11-17 15:59:21 +08:00 · 64b244207c
parent a6594b65da
commit 64b244207c
1 changed files with 5 additions and 0 deletions
--- a/docs/developer_guides/chap06_root_coordinator.md
+++ b/docs/developer_guides/chap06_root_coordinator.md
@ -697,6 +697,11 @@ type timetickSync struct {
 	lock          sync.Mutex
 	proxyTimeTick map[typeutil.UniqueID]*channelTimeTickMsg
 	sendChan      chan map[typeutil.UniqueID]*channelTimeTickMsg
+
+	// record ddl timetick info
+	ddlLock  sync.RWMutex
+	ddlMinTs typeutil.Timestamp
+	ddlTsSet map[typeutil.Timestamp]struct{}
 }

 func newTimeTickSync(core *Core) *timetickSync