chore: remove unused ClientLastResps (#18383)

Author: drmingdrmer

src/meta/process/src/kv_processor.rs

@@ -107,7 +107,6 @@ where F: Fn(&str, Vec<u8>) -> Result<Vec<u8>, anyhow::Error>
             RaftStoreEntry::RaftStateKV { .. } => Ok(None),
             RaftStoreEntry::Expire { .. } => Ok(None),
             RaftStoreEntry::Sequences { .. } => Ok(None),
-            RaftStoreEntry::ClientLastResps { .. } => Ok(None),
             RaftStoreEntry::LogMeta { .. } => Ok(None),
 
             RaftStoreEntry::NodeId(_) => Ok(None),

src/meta/raft-store/src/key_spaces.rs

@@ -35,7 +35,6 @@ use crate::ondisk::Header;
 use crate::ondisk::OnDisk;
 use crate::state::RaftStateKey;
 use crate::state::RaftStateValue;
-use crate::state_machine::ClientLastRespValue;
 use crate::state_machine::ExpireKey;
 use crate::state_machine::ExpireValue;
 use crate::state_machine::LogMetaKey;
@@ -118,13 +117,7 @@ impl SledKeySpace for Sequences {
     type V = SeqNum;
 }
 
-pub struct ClientLastResps {}
-impl SledKeySpace for ClientLastResps {
-    const PREFIX: u8 = 10;
-    const NAME: &'static str = "client-last-resp";
-    type K = String;
-    type V = ClientLastRespValue;
-}
+// Reserved: removed: `pub struct ClientLastResps {}`, PREFIX = 10;
 
 pub struct DataHeader {}
 impl SledKeySpace for DataHeader {
@@ -242,7 +235,6 @@ pub enum RaftStoreEntry {
     Expire           { key: <Expire           as SledKeySpace>::K, value: <Expire           as SledKeySpace>::V, },
     GenericKV        { key: <GenericKV        as SledKeySpace>::K, value: <GenericKV        as SledKeySpace>::V, },
     Sequences        { key: <Sequences        as SledKeySpace>::K, value: <Sequences        as SledKeySpace>::V, },
-    ClientLastResps  { key: <ClientLastResps  as SledKeySpace>::K, value: <ClientLastResps  as SledKeySpace>::V, },
     // V003 only
     LogMeta          { key: <LogMeta          as SledKeySpace>::K, value: <LogMeta          as SledKeySpace>::V, },
 
@@ -273,7 +265,6 @@ impl RaftStoreEntry {
             | RaftStoreEntry::Expire { .. }
             | RaftStoreEntry::GenericKV { .. }
             | RaftStoreEntry::Sequences { .. }
-            | RaftStoreEntry::ClientLastResps { .. }
             | RaftStoreEntry::LogEntry(_)
             | RaftStoreEntry::NodeId(_)
             | RaftStoreEntry::Vote(_)
@@ -295,7 +286,6 @@ impl RaftStoreEntry {
             Self::Expire           { key, value } => serialize_for_sled!(Expire,           key, value),
             Self::GenericKV        { key, value } => serialize_for_sled!(GenericKV,        key, value),
             Self::Sequences        { key, value } => serialize_for_sled!(Sequences,        key, value),
-            Self::ClientLastResps  { key, value } => serialize_for_sled!(ClientLastResps,  key, value),
             Self::LogMeta          { key, value } => serialize_for_sled!(LogMeta,          key, value),
 
             RaftStoreEntry::LogEntry(_) |
@@ -329,7 +319,6 @@ impl RaftStoreEntry {
             Expire,
             GenericKV,
             Sequences,
-            ClientLastResps,
             LogMeta
         );
 
@@ -359,7 +348,6 @@ impl TryInto<SMEntry> for RaftStoreEntry {
 
             Self::Logs             { .. } => {Err("SMEntry does not contain Logs".to_string())},
             Self::RaftStateKV      { .. } => {Err("SMEntry does not contain RaftStateKV".to_string())}
-            Self::ClientLastResps  { .. } => {Err("SMEntry does not contain ClientLastResps".to_string())}
             Self::LogMeta          { .. } => {Err("SMEntry does not contain LogMeta".to_string())}
 
 

src/meta/raft-store/src/raft_log_v004/importer.rs

@@ -109,9 +109,6 @@ impl Importer {
             RaftStoreEntry::Sequences { .. } => {
                 unreachable!("Sequences should be written to log");
             }
-            RaftStoreEntry::ClientLastResps { .. } => {
-                unreachable!("ClientLastResps should be written to log");
-            }
         }
 
         Ok(())

src/meta/raft-store/src/state_machine/client_last_resp.rs

@@ -12,7 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-pub use client_last_resp::ClientLastRespValue;
 pub use expire::ExpireKey;
 pub use expire::ExpireValue;
 pub use log_meta::LogMetaKey;
@@ -22,7 +21,6 @@ pub use state_machine_meta::StateMachineMetaKey;
 pub use state_machine_meta::StateMachineMetaValue;
 pub use user_key::UserKey;
 
-pub mod client_last_resp;
 mod expire;
 pub mod log_meta;
 mod snapshot_id;