From d1f8b55b8f5e8ad2266f6e0d67c6a115a146dc1e Mon Sep 17 00:00:00 2001
From: Ryan Leung <rleungx@gmail.com>
Date: Fri, 21 Jan 2022 17:57:28 +0800
Subject: [PATCH] resolve conflicts

Signed-off-by: Ryan Leung <rleungx@gmail.com>
---
 server/api/region_test.go | 1 -
 server/cluster/cluster.go | 9 ++-------
 server/statistics/topn.go | 7 +++++--
 3 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/server/api/region_test.go b/server/api/region_test.go
index 3b2896820bb7..f95b8b2d6b26 100644
--- a/server/api/region_test.go
+++ b/server/api/region_test.go
@@ -99,7 +99,6 @@ func (s *testRegionSuite) SetUpSuite(c *C) {
 	s.urlPrefix = fmt.Sprintf("%s%s/api/v1", addr, apiPrefix)
 
 	mustBootstrapCluster(c, s.svr)
-	s.svr.GetRaftCluster().SetPrepared()
 }
 
 func (s *testRegionSuite) TearDownSuite(c *C) {
diff --git a/server/cluster/cluster.go b/server/cluster/cluster.go
index ee492dc107c8..ad866af62c54 100644
--- a/server/cluster/cluster.go
+++ b/server/cluster/cluster.go
@@ -210,7 +210,6 @@ func (c *RaftCluster) InitCluster(
 	c.labelLevelStats = statistics.NewLabelStatistics()
 	c.hotStat = statistics.NewHotStat(c.ctx)
 	c.changedRegions = make(chan *core.RegionInfo, defaultChangedRegionsLimit)
-	c.statsTaskCh = make(chan []*statsTask, defaultStatsJobLimit)
 }
 
 // Start starts a cluster.
@@ -1283,11 +1282,8 @@ func (c *RaftCluster) collectStatsMetrics() {
 }
 
 func (c *RaftCluster) collectHotStatsMetrics() {
-	c.RLock()
-	hotStat := c.hotStat
-	c.RUnlock()
 	// collect hot cache metrics
-	hotStat.CollectMetrics()
+	c.hotStat.CollectMetrics()
 }
 
 func (c *RaftCluster) resetClusterMetrics() {
@@ -1298,10 +1294,9 @@ func (c *RaftCluster) resetClusterMetrics() {
 	}
 	c.regionStats.Reset()
 	c.labelLevelStats.Reset()
-	hotStat := c.hotStat
 	c.RUnlock()
 	// reset hot cache metrics
-	hotStat.ResetMetrics()
+	c.hotStat.ResetMetrics()
 }
 
 func (c *RaftCluster) collectHealthStatus() {
diff --git a/server/statistics/topn.go b/server/statistics/topn.go
index 6046de557b46..0cbc208259ac 100644
--- a/server/statistics/topn.go
+++ b/server/statistics/topn.go
@@ -289,8 +289,11 @@ func (hp *indexedHeap) Get(id uint64) TopNItem {
 	if !ok {
 		return nil
 	}
-	<
-	
+	item := hp.items[idx]
+	return item
+}
+
+// GetAll returns all the items.
 func (hp *indexedHeap) GetAll() []TopNItem {
 	all := make([]TopNItem, len(hp.items))
 	copy(all, hp.items)