Neil Shen

## Development Task The raw kv API format is incompatible with IME, so IME should never load regions containing raw kv data.

[WIP] In-memory Engine: Adjust memory settings based on available memory

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### What is changed and how it works? Issue Number: ref #16141 What's Changed: ```commit-message When the in-memory engine is enabled, it allocates 20% of the block cache memory capacity...

Slow message handling: `CompactedEvent(RocksCompactedEvent)` takes 3ms

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## Development Task ```log [2025/06/11 02:25:37.449 +00:00] [WARN] [store.rs:923] ["dbg slow store message handling"] [elapsed=3.518013ms] [msg="CompactedEvent(RocksCompactedEvent { cf: \"write\", output_level: 4, total_input_bytes: 3932552, total_output_bytes: 3333753, start_key: [122, 116, 128, 0,...

## Development Task ```log [2025/06/16 04:56:33.853 +00:00] [WARN] [sst_service.rs:484] ["sst ingest is too slow"] [sst_ranges="[([122, 116, 128, 0, 0, 0, 0, 0, 0, 255, ... 215, 255, 245])]"] [thread_id=13] ```...

Slow message handling: `SignificantMsg(RaftLogGcFlushed)` takes 412ms

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## Development Task ```log [2025/06/11 02:37:11.909 +00:00] [INFO] [raft.rs:2660] ["switched to configuration"] [config="Configuration { voters: Configuration { incoming: Configuration { voters: {533554, 533553, 1242350} }, outgoing: Configuration { voters: {533552,...

Slow message handling: `AwakenRegions` takes 390ms

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## Development Task ```log [2025/06/11 02:33:45.594 +00:00] [INFO] [pd.rs:1462] ["forcely awaken hibernated regions in this store"] [thread_id=34] [2025/06/11 02:33:45.595 +00:00] [INFO] [store.rs:2899] ["try to wake up all hibernated regions in...

Slow message handling: `Tick(CompactCheck)` takes 13ms

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## Development Task ```log [2025/06/11 02:38:21.556 +00:00] [WARN] [store.rs:923] ["dbg slow store message handling"] [elapsed=13.156858ms] [msg=Tick(CompactCheck)] [thread_id=105] ``` The log is taken from a TiKV instance that runs 238k peers...

## Development Task ```log [2025/06/11 02:38:02.634 +00:00] [INFO] [peer.rs:4685] ["ack transfer leader"] [applied_index=62] [committed_index=62] [persist_index=62] [last_index=62] [reply_cmd=false] [to_peer=275028] [from_peer=275027] [region_id=275026] [thread_id=104] [2025/06/11 02:38:02.634 +00:00] [INFO] [raft.rs:2345] ["[term 36] received MsgTimeoutNow...

## Development Task ```log [2025/06/11 02:44:05.465 +00:00] [INFO] [peer.rs:330] ["replicate peer"] [create_by_peer_store_id=7] [create_by_peer_id=511893] [store_id=2] [peer_id=1242850] [region_id=511890] [thread_id=104] [2025/06/11 02:44:05.465 +00:00] [INFO] [raft.rs:2660] ["switched to configuration"] [config="Configuration { voters: Configuration {...

## Development Task ```log [2025/06/11 02:24:11.712 +00:00] [WARN] [peer.rs:750] ["dbg slow peer message handling"] [elapsed=2.869589ms] [msg=Tick(RaftLogGc)] [peer_id=273809] [region_id=273807] [thread_id=105] ``` The log is taken from a TiKV instance that runs...