Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

1、cluster node spec
2 * tiflash-write-8C32G
2 * tifllash-compute-128GB
keyspace1：2* tidb-8C16G
keyspace3：2* tidb-8C16G
tikv：6 * tikv-16C64G

2、run AP query and tp workload for keyspace1 and keyspace3

go-tpc ch run -D tpcc --host xxx --warehouses 2000 -T 0 --acThreads 1 --time 36000m --user root --password '' --interval '10s' --ignore-error all

go-tpc ch run -D tpcc --host xxx --warehouses 2000 -T 32 --acThreads 0 --time 36000m --user root --password '' --interval '10s'

2. What did you expect to see? (Required)

no oom

3. What did you see instead (Required)

one of tiflash wn continuous oom after a long time running workload

4. What is your TiFlash version? (Required)

TiFlash
Release Version: v9.0.0-beta.2.pre-2-gb3a52b7ff
Edition: Enterprise
Git Commit Hash: b3a52b7
Git Branch: HEAD
UTC Build Time: 2025-06-27 10:43:38
Enable Features: jemalloc sm4(GmSSL) mem-profiling asimd unwind thinlto next-gen hnsw.l2=sve hnsw.cosine=sve vec.l2=sve vec.cos=sve
Profile: RELWITHDEBINFO
Compiler: clang++ 17.0.6

Raft Proxy
Git Commit Hash: d467c7143a4c38ef4244647bf380f27fbd8ed78c
Git Commit Branch: HEAD
UTC Build Time: ""
Rust Version: rustc 1.77.0-nightly (89e2160c4 2023-12-27)
Storage Engine: tiflash
Prometheus Prefix: tiflash_proxy_
Profile: release
Enable Features: "raftstore-proxy/external-jemalloc" pprof-fp portable test-engine-kv-rocksdb test-engine-raft-raft-engine cloud-aws cloud-gcp cloud-azure pprof-fp portable test-engine-kv-rocksdb test-engine-raft-raft-engine cloud-aws cloud-gcp cloud-azure pprof-fp