the memory of tidb keep increasing and qps drop more than 60% after simulate pd leader network partition

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)
1、start pitr task and ticdc changefeed task
2、run tpcc （1000 warehouse）
3、after 10min， simulate pd leader network partition （pd elect normally）

### 2. What did you expect to see? (Required)
1、the memory of tidb shoule not keep increasing
2、qps can recovery with in 2min after simulate pd leader network partition

### 3. What did you see instead (Required)
1、the memory of tidb keep increasing
[2023/06/28 21:40:21.394 +08:00] [WARN] [servermemorylimit.go:148] ["global memory controller tries to kill the top1 memory consumer"] [conn=83760795803975679] ["sql digest"=bc2d161067078a11d7fc1e202182dd6eb547f1f5a2ecc14998779df9c3131e70] ["sql text"="analyze table `tpcc`.`history`"] [tidb_server_memory_limit=27487790640] ["heap inuse"=27493703680] ["sql memory usage"=19233776553]
[2023/06/28 21:40:22.355 +08:00] [WARN] [tracker.go:464] ["global memory controller, NeedKill signal is received successfully"] [conn=83760795803975679]
[2023/06/28 21:40:22.355 +08:00] [WARN] [expensivequery.go:145] ["memory exceeds quota"] [cost_time=938.657750086s] [conn=83760795803975679] [txn_start_ts=0] [mem_max="19338634209 Bytes (18.0 GB)"] [sql="analyze table `tpcc`.`history`"]
[2023/06/28 21:40:22.355 +08:00] [ERROR] [analyze_col_v2.go:645] ["analyze worker panicked"] [recover="Your query has been cancelled due to exceeding the allowed memory limit for the tidb-server instance and this query is currently using the most memory. Please try narrowing your query scope or increase the tidb_server_memory_limit and try again.[conn=83760795803975679]"] [stack="github.com/pingcap/tidb/executor.(*AnalyzeColumnsExecV2).subBuildWorker.func1\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/analyze_col_v2.go:645\nruntime.gopanic\n\t/usr/local/go/src/runtime/panic.go:884\ngithub.com/pingcap/tidb/util/memory.(*PanicOnExceed).Action\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/util/memory/action.go:167\ngithub.com/pingcap/tidb/util/memory.(*Tracker).Consume.func2\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/util/memory/tracker.go:455\ngithub.com/pingcap/tidb/util/memory.(*Tracker).Consume\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/util/memory/tracker.go:467\ngithub.com/pingcap/tidb/statistics.BuildHistAndTopN.func1\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/statistics/builder.go:246\nruntime.gopanic\n\t/usr/local/go/src/runtime/panic.go:884\ngithub.com/pingcap/tidb/util/memory.(*PanicOnExceed).Action\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/util/memory/action.go:167\ngithub.com/pingcap/tidb/util/memory.(*Tracker).Consume.func2\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/util/memory/tracker.go:455\ngithub.com/pingcap/tidb/util/memory.(*Tracker).Consume\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/util/memory/tracker.go:467\ngithub.com/pingcap/tidb/util/memory.(*Tracker).BufferedConsume\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/util/memory/tracker.go:497\ngithub.com/pingcap/tidb/statistics.BuildHistAndTopN.func2\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/statistics/builder.go:257\ngithub.com/pingcap/tidb/statistics.BuildHistAndTopN\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/statistics/builder.go:371\ngithub.com/pingcap/tidb/executor.(*AnalyzeColumnsExecV2).subBuildWorker\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/analyze_col_v2.go:779\ngithub.com/pingcap/tidb/executor.(*AnalyzeColumnsExecV2).buildSamplingStats.func3\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/analyze_col_v2.go:348\ngithub.com/pingcap/tidb/executor.(*notifyErrorWaitGroupWrapper).Run.func1\n\t/home/jenkins/agent/workspace/build-common/go/src/github.com/pingcap/tidb/executor/analyze_utils.go:127"]
[2023/06/28 21:40:22.355 +08:00] [ERROR] [analyze.go:311] ["analyze failed"] [error="Your query has been cancelled due to exceeding the allowed memory limit for the tidb-server instance and this query is currently using the most memory. Please try narrowing your query scope or increase the tidb_server_memory_limit and try again.[conn=83760795803975679]%!(EXTRA *errors.fundamental=analyze panic due to memory quota exceeds, please try with smaller samplerate(refer to 110000/count))"]
[2023/06/28 21:40:22.359 +08:00] [INFO] [analyze.go:589] ["analyze table `tpcc`.`history` has failed"] [partition=] ["job info"="auto analyze table all columns with 256 buckets, 500 topn, 0.3516556587789237 samplerate"] ["start time"=2023/06/28 21:24:53.839 +08:00] ["end time"=2023/06/28 21:40:22.355 +08:00] [cost=15m28.51620183s]
[2023/06/28 21:40:22.359 +08:00] [INFO] [tidb.go:285] ["rollbackTxn called due to ddl/autocommit failure"]
[2023/06/28 21:40:22.359 +08:00] [WARN] [session.go:2284] ["run statement failed"] [schemaVersion=48] [error="Your query has been cancelled due to exceeding the allowed memory limit for the tidb-server instance and this query is currently using the most memory. Please try narrowing your query scope or increase the tidb_server_memory_limit and try again.[conn=83760795803975679]%!(EXTRA *errors.fundamental=analyze panic due to memory quota exceeds, please try with smaller samplerate(refer to 110000/count))"] [session="{\n \"currDBName\": \"\",\n \"id\": 83760795803975679,\n \"status\": 2,\n \"strictMode\": true,\n \"user\": null\n}"]
[2023/06/28 21:40:22.359 +08:00] [ERROR] [update.go:1315] ["[stats] auto analyze failed"] [sql="analyze table `tpcc`.`history`"] [cost_time=15m38.661931978s] [error="Your query has been cancelled due to exceeding the allowed memory limit for the tidb-server instance and this query is currently using the most memory. Please try narrowing your query scope or increase the tidb_server_memory_limit and try again.[conn=83760795803975679]%!(EXTRA *errors.fundamental=analyze panic due to memory quota exceeds, please try with smaller samplerate(refer to 110000/count))"]
[2023/06/28 21:40:22.361 +08:00] [INFO] [update.go:1189] ["[stats] auto analyze triggered"] [sql="analyze table `tpcc`.`history`"] [reason="table unanalyzed"]

2、the memory of tidb keep increasing and qps drop more than 60% last for 20min

### 4. What is your TiDB version? (Required)
["Welcome to TiDB."] ["Release Version"=v7.3.0-alpha] [Edition=Community] ["Git Commit Hash"=a7b54adfede165328fab966e288d2d9402943d7c] ["Git Branch"=heads/refs/tags/v7.3.0-alpha] ["UTC Build Time"="2023-06-28 11:14:13"] [GoVersion=go1.20.5] ["Race Enabled"=false] ["Check Table Before Drop"=false]