From dc2bb56122d3ca4b13f925b8a1bc414bec056638 Mon Sep 17 00:00:00 2001
From: zhifei92 <13641019076@163.com>
Date: Thu, 17 Sep 2020 18:26:58 +0800
Subject: [PATCH] fix: #363

---
 pkg/sidecar/appconf.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkg/sidecar/appconf.go b/pkg/sidecar/appconf.go
index 7791992ec..b07e2bc6d 100644
--- a/pkg/sidecar/appconf.go
+++ b/pkg/sidecar/appconf.go
@@ -187,6 +187,13 @@ func initFileQuery(cfg *Config, gtidPurged string) []byte {
 		[]string{"CREATE", "SELECT", "DELETE", "UPDATE", "INSERT"}, fmt.Sprintf("%s.%s", toolsDbName, toolsHeartbeatTableName),
 		[]string{"REPLICATION CLIENT"}, "*.*")...)
 
+	// the slave pod doesn't need to back up sys_operator.status, Xtrabackup might have some bugs that
+	// cause the table to be unclean. We can do this cleanup before the slave pod starts to avoid accidents.
+	if !cfg.IsFirstPodInSet() {
+		queries = append(queries, fmt.Sprintf("DROP TABLE IF EXISTS %s.%s",
+			constants.OperatorDbName, constants.OperatorStatusTableName))
+	}
+
 	// create the status table used by the operator to configure or to mask MySQL node ready
 	// CSV engine for this table can't be used because we use REPLACE statement that requires PRIMARY KEY or
 	// UNIQUE KEY index. Also, the table may exists (in case of pod restart) and should not be changed.