Update crates/fluss/src/client/connection.rs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: toxicteddy00077

crates/fluss/src/client/connection.rs

@@ -23,8 +23,8 @@ use crate::config::Config;
 use crate::rpc::RpcClient;
 use parking_lot::RwLock;
 use std::sync::Arc;
-use tokio::sync::OnceCell;
 use std::time::Duration;
+use tokio::sync::OnceCell;
 
 use crate::error::{Error, FlussError, Result};
 use crate::metadata::TablePath;
@@ -79,11 +79,7 @@ impl FlussConnection {
     }
 
     pub async fn get_admin(&self) -> Result<FlussAdmin> {
-        // Lazily initialize and cache the FlussAdmin instance. The cached FlussAdmin
-        // holds a reference to RpcClient, which manages connection reuse and re-acquisition
-        // when a cached connection becomes poisoned. Subsequent calls clone cheaply —
-        // all internal fields (ServerConnection, Arc<Metadata>, Arc<RpcClient>) are
-        // Arc-backed so cloning is just a reference-count bump.
+        // Lazily init and cache the FlussAdmin instance, like Java's lazy-init pattern.
         let admin = self
             .admin_client
             .get_or_try_init(|| FlussAdmin::new(self.network_connects.clone(), self.metadata.clone()))