"[2024/11/14 01:40:44.755 +00:00] [FATAL] [lib.rs:509] ["called `Option::unwrap()` on a `None` value"] [backtrace="   0: tikv_util::set_panic_hook::{{closure}}
             at tikv/components/tikv_util/src/lib.rs:508:18
   1: <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/boxed.rs:2032:9
      std::panicking::rust_panic_with_hook
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:692:13
   2: std::panicking::begin_panic_handler::{{closure}}
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:577:13
   3: std::sys_common::backtrace::__rust_end_short_backtrace
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/sys_common/backtrace.rs:137:18
   4: rust_begin_unwind
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:575:5
   5: core::panicking::panic_fmt
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/panicking.rs:65:14
   6: core::panicking::panic
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/panicking.rs:114:5
   7: raftstore::store::entry_storage::EntryStorage<EK,ER>::term
   8: <raftstore::store::peer_storage::PeerStorage<EK,ER> as raft::storage::Storage>::term
             at tikv/components/raftstore/src/store/peer_storage.rs:273:9
      raft::raft_log::RaftLog<T>::term
             at root/.cargo/git/checkouts/raft-rs-42b8049ef2e3af07/2357cb2/src/raft_log.rs:131:18
   9: raftstore::store::peer::Peer<EK,ER>::get_index_term
             at tikv/components/raftstore/src/store/peer.rs:1307:15
      raftstore::store::fsm::peer::PeerFsmDelegate<EK,ER,T>::on_raft_gc_log_tick
             at tikv/components/raftstore/src/store/fsm/peer.rs:5456:20
  10: raftstore::store::fsm::peer::PeerFsmDelegate<EK,ER,T>::handle_msgs
             at tikv/components/raftstore/src/store/fsm/peer.rs:674:48
  11: <raftstore::store::fsm::store::RaftPoller<EK,ER,T> as batch_system::batch::PollHandler<raftstore::store::fsm::peer::PeerFsm<EK,ER>,raftstore::store::fsm::store::StoreFsm<EK>>>::handle_normal
             at tikv/components/raftstore/src/store/fsm/store.rs:971:9
  12: batch_system::batch::Poller<N,C,Handler>::poll
             at tikv/components/batch-system/src/batch.rs:430:27
  13: batch_system::batch::BatchSystem<N,C>::start_poller::{{closure}}
             at tikv/components/batch-system/src/batch.rs:600:17
      <std::thread::Builder as tikv_util::sys::thread::StdThreadBuildWrapper>::spawn_wrapper::{{closure}}
             at tikv/components/tikv_util/src/sys/thread.rs:415:23
      std::sys_common::backtrace::__rust_begin_short_backtrace
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/sys_common/backtrace.rs:121:18
  14: std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/thread/mod.rs:551:17
      <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/panic/unwind_safe.rs:271:9
      std::panicking::try::do_call
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:483:40
      std::panicking::try
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panicking.rs:447:19
      std::panic::catch_unwind
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/panic.rs:137:14
      std::thread::Builder::spawn_unchecked_::{{closure}}
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/thread/mod.rs:550:30
      core::ops::function::FnOnce::call_once{{vtable.shim}}
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/ops/function.rs:513:5
  15: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/boxed.rs:2000:9
      <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/alloc/src/boxed.rs:2000:9
      std::sys::unix::thread::Thread::new::thread_start
             at root/.rustup/toolchains/nightly-2022-11-15-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/std/src/sys/unix/thread.rs:108:17
  16: start_thread
  17: __clone3
"] [location=/tikv/components/raftstore/src/store/entry_storage.rs:952] [thread_name=raftstore-1693-0]",

"[2024/11/14 01:40:44.469 +00:00] [INFO] [pd.rs:1567] [\"try to merge\"] [merge=\"target { id: 138832049 start_key: ? end_key: ? region_epoch { conf_ver: 7127 version: 992958 } peers { id: 138832050 store_id: 205 } peers { id: 138832052 store_id: 431 } peers { id: 540299072 store_id: 1693 } }\"] [region_id=139238551]",
  "[2024/11/14 01:40:44.480 +00:00] [INFO] [apply.rs:1612] [\"execute admin command\"] [command=\"cmd_type: PrepareMerge prepare_merge { min_index: 305 target { id: 138832049 start_key: ? end_key: ? region_epoch { conf_ver: 7127 version: 992958 } peers { id: 138832050 store_id: 205 } peers { id: 138832052 store_id: 431 } peers { id: 540299072 store_id: 1693 } } }\"] [index=305] [term=188] [peer_id=1010311597] [region_id=139238551]",
  "[2024/11/14 01:40:44.486 +00:00] [INFO] [endpoint.rs:177] [\"region met split/merge command, stop tracking since key range changed, wait for re-register\"] [req_type=PrepareMerge]",
  "[2024/11/14 01:40:44.486 +00:00] [INFO] [endpoint.rs:414] [\"deregister observe region\"] [observe_id=ObserveId(12870)] [region_id=139238551] [store_id=Some(1693)]",
  "[2024/11/14 01:40:44.486 +00:00] [INFO] [endpoint.rs:337] [\"register observe region\"] [region=\"id: 139238551 start_key: ? end_key: ? region_epoch { conf_ver: 7182 version: 992922 } peers { id: 1010311597 store_id: 1693 } peers { id: 1292018290 store_id: 205 } peers { id: 1292018291 store_id: 431 }\"]",
  "[2024/11/14 01:40:44.497 +00:00] [INFO] [apply.rs:2764] [\"asking delegate to stop\"] [source_region_id=139238551] [peer_id=540299072] [region_id=138832049]",
  "[2024/11/14 01:40:44.497 +00:00] [INFO] [apply.rs:3798] [\"source logs are all applied now\"] [peer_id=1010311597] [region_id=139238551]",
  "[2024/11/14 01:40:44.497 +00:00] [INFO] [apply.rs:3723] [\"remove delegate from apply delegates\"] [peer_id=1010311597] [region_id=139238551]",
  "[2024/11/14 01:40:44.497 +00:00] [INFO] [router.rs:345] [\"[region 139238551] shutdown mailbox\"]",
  "[2024/11/14 01:40:44.499 +00:00] [INFO] [apply.rs:2786] [\"execute CommitMerge\"] [source_region=\"id: 139238551 start_key: ? end_key: ? region_epoch { conf_ver: 7182 version: 992922 } peers { id: 1010311597 store_id: 1693 } peers { id: 1292018290 store_id: 205 } peers { id: 1292018291 store_id: 431 }\"] [index=263] [term=168] [entries=1] [commit=305] [peer_id=540299072] [region_id=138832049]",
  "[2024/11/14 01:40:44.502 +00:00] [INFO] [util.rs:1459] [\"reset safe_ts due to merge\"] [peer_id=540299072] [region_id=138832049] [safe_ts=453915034481075508] [target_safe_ts=453915034481075508] [source_safe_ts=453915035398572863]",
  "[2024/11/14 01:40:44.502 +00:00] [INFO] [peer.rs:5626] [\"require updating max ts\"] [initial_status=721556491646] [region_id=138832049]",
  "[2024/11/14 01:40:44.502 +00:00] [INFO] [peer.rs:4726] [\"merge finished\"] [target_region=\"Some(id: 138832049 start_key: ? end_key: ? region_epoch { conf_ver: 7127 version: 992958 } peers { id: 138832050 store_id: 205 } peers { id: 138832052 store_id: 431 } peers { id: 540299072 store_id: 1693 })\"] [peer_id=1010311597] [region_id=139238551]",
  "[2024/11/14 01:40:44.502 +00:00] [INFO] [peer.rs:3574] [\"delays destroy\"] [reason=UnFlushLogGc] [merged_by_target=true] [peer_id=1010311597] [region_id=139238551]",
  "[2024/11/14 01:40:44.502 +00:00] [INFO] [pd.rs:1707] [\"succeed to update max timestamp\"] [region_id=138832049]",
  "[2024/11/14 01:40:44.510 +00:00] [INFO] [peer.rs:3584] [\"starts destroy\"] [merged_by_target=true] [peer_id=1010311597] [region_id=139238551]",
  "[2024/11/14 01:40:44.510 +00:00] [INFO] [peer.rs:1459] [\"begin to destroy\"] [peer_id=1010311597] [region_id=139238551]",
  "[2024/11/14 01:40:44.510 +00:00] [INFO] [pd.rs:1637] [\"remove peer statistic record in pd\"] [region_id=139238551]",
  "[2024/11/14 01:40:44.510 +00:00] [INFO] [peer_storage.rs:1020] [\"finish clear peer meta\"] [takes=2.138µs] [raft_key=1] [apply_key=1] [meta_key=1] [region_id=139238551]",
  "[2024/11/14 01:40:44.510 +00:00] [INFO] [endpoint.rs:414] [\"deregister observe region\"] [observe_id=ObserveId(12873)] [region_id=139238551] [store_id=Some(1693)]",
  "[2024/11/14 01:40:44.512 +00:00] [WARN] [scanner.rs:95] [\"resolved_ts scan get snapshot failed\"] [err=\"Other(\\\"scan task cancelled\\\")\"]",
  "[2024/11/14 01:40:44.518 +00:00] [INFO] [peer.rs:1563] [\"peer destroy itself\"] [keep_data=true] [clean=true] [takes=8.271467ms] [peer_id=1010311597] [region_id=139238551]",
  "[2024/11/14 01:40:44.518 +00:00] [INFO] [router.rs:345] [\"[region 139238551] shutdown mailbox\"]",