diff --git a/services/backup/blob_client/src/get_client.rs b/services/backup/blob_client/src/get_client.rs
index 24785b60d..87701560f 100644
--- a/services/backup/blob_client/src/get_client.rs
+++ b/services/backup/blob_client/src/get_client.rs
@@ -1,181 +1,182 @@
 mod proto {
   tonic::include_proto!("blob");
 }
 
 use proto::blob_service_client::BlobServiceClient;
 use proto::GetRequest;
 
 use crate::constants::{BLOB_ADDRESS, MPSC_CHANNEL_BUFFER_CAPACITY};
 use crate::tools::{
-  c_char_pointer_to_string, check_error, report_error, string_to_c_char_pointer,
+  c_char_pointer_to_string, c_char_pointer_to_string_new, check_error,
+  report_error, string_to_c_char_pointer, string_to_c_char_pointer_new,
 };
+use anyhow::bail;
 use crate::RUNTIME;
 use lazy_static::lazy_static;
 use libc;
 use libc::c_char;
 use std::collections::HashMap;
 use std::sync::Mutex;
 use tokio::sync::mpsc;
 use tokio::task::JoinHandle;
 
 struct ReadClient {
   rx: mpsc::Receiver<Vec<u8>>,
   rx_handle: JoinHandle<()>,
 }
 
 lazy_static! {
   // todo: we should consider limiting the clients size,
   // if every client is able to allocate up to 4MB data at a time
   static ref CLIENTS: Mutex<HashMap<String, ReadClient>> =
     Mutex::new(HashMap::new());
   static ref ERROR_MESSAGES: Mutex<Vec<String>> =
     Mutex::new(Vec::new());
 }
 
-fn is_initialized(holder: &String) -> bool {
+fn is_initialized(holder: &str) -> bool {
   if let Ok(clients) = CLIENTS.lock() {
     return clients.contains_key(holder);
   } else {
     report_error(&ERROR_MESSAGES, "couldn't access client", Some("get"));
   }
   false
 }
 
+fn is_initialized_new(holder: &String) -> anyhow::Result<bool, anyhow::Error> {
+  if let Ok(clients) = CLIENTS.lock() {
+    return Ok(clients.contains_key(holder));
+  }
+  bail!("couldn't access client");
+}
+
 pub fn get_client_initialize_cxx(
   holder_char: *const c_char,
 ) -> Result<(), String> {
   let holder = c_char_pointer_to_string(holder_char)?;
-  if is_initialized(&holder) {
-    get_client_terminate_cxx(string_to_c_char_pointer(&holder)?)?;
-  }
 
   assert!(
     !is_initialized(&holder),
     "client cannot be initialized twice"
   );
 
   // grpc
   if let Ok(mut grpc_client) =
     RUNTIME.block_on(async { BlobServiceClient::connect(BLOB_ADDRESS).await })
   {
     // spawn receiver thread
     let (response_thread_tx, response_thread_rx) =
       mpsc::channel::<Vec<u8>>(MPSC_CHANNEL_BUFFER_CAPACITY);
     let cloned_holder = holder.clone();
     let rx_handle = RUNTIME.spawn(async move {
       if let Ok(response) = grpc_client
         .get(GetRequest {
           holder: cloned_holder,
         })
         .await
       {
         let mut inner_response = response.into_inner();
         loop {
           match inner_response.message().await {
             Ok(maybe_data) => {
               let mut result = false;
               if let Some(data) = maybe_data {
                 let data: Vec<u8> = data.data_chunk;
                 result = match response_thread_tx.send(data).await {
                   Ok(_) => true,
                   Err(err) => {
                     report_error(
                       &ERROR_MESSAGES,
                       &err.to_string(),
                       Some("get"),
                     );
                     false
                   }
                 }
               }
               if !result {
                 break;
               }
             }
             Err(err) => {
               report_error(&ERROR_MESSAGES, &err.to_string(), Some("get"));
               break;
             }
           };
         }
       } else {
         report_error(
           &ERROR_MESSAGES,
           "couldn't perform grpc get operation",
           Some("get"),
         );
       }
     });
 
     if let Ok(mut clients) = CLIENTS.lock() {
       let client = ReadClient {
         rx_handle,
         rx: response_thread_rx,
       };
       (*clients).insert(holder, client);
       return Ok(());
     }
     return Err("could not access client".to_string());
   }
   Err("could not successfully connect to the blob server".to_string())
 }
 
 pub fn get_client_blocking_read_cxx(
   holder_char: *const c_char,
 ) -> Result<Vec<u8>, String> {
   let holder = c_char_pointer_to_string(holder_char)?;
   check_error(&ERROR_MESSAGES)?;
   let response: Option<Vec<u8>> = RUNTIME.block_on(async {
     if let Ok(mut clients) = CLIENTS.lock() {
       let maybe_client = clients.get_mut(&holder);
       if let Some(client) = maybe_client {
         let maybe_data = client.rx.recv().await;
         let response = Some(maybe_data.unwrap_or_else(|| vec![]));
         return response;
       } else {
         report_error(&ERROR_MESSAGES, "no client present", Some("get"));
       }
     } else {
       report_error(&ERROR_MESSAGES, "couldn't access client", Some("get"));
     }
     None
   });
   check_error(&ERROR_MESSAGES)?;
   response.ok_or("response could not be obtained".to_string())
 }
 
 pub fn get_client_terminate_cxx(
   holder_char: *const c_char,
-) -> Result<(), String> {
-  let holder = c_char_pointer_to_string(holder_char)?;
-  check_error(&ERROR_MESSAGES)?;
-  if !is_initialized(&holder) {
-    check_error(&ERROR_MESSAGES)?;
+) -> anyhow::Result<(), anyhow::Error> {
+  let holder = c_char_pointer_to_string_new(holder_char)?;
+  if !is_initialized_new(&holder)? {
     return Ok(());
   }
   if let Ok(mut clients) = CLIENTS.lock() {
-    let maybe_client = clients.remove(&holder);
-    if let Some(client) = maybe_client {
-      RUNTIME.block_on(async {
-        if client.rx_handle.await.is_err() {
-          report_error(
-            &ERROR_MESSAGES,
-            "wait for receiver handle failed",
-            Some("get"),
-          );
-        }
-      });
-    } else {
-      return Err("no client detected".to_string());
+    match clients.remove(&holder) {
+      Some(client) => {
+        RUNTIME.block_on(async {
+          if client.rx_handle.await.is_err() {
+            bail!(format!("awaiting for the client {} failed", holder));
+          }
+          Ok(())
+        })?;
+      }
+      None => {
+        bail!(format!("no client foudn for {}", holder));
+      }
     }
   } else {
-    return Err("couldn't access client".to_string());
+    bail!("couldn't access client");
   }
 
-  assert!(
-    !is_initialized(&holder),
-    "client transmitter handler released properly"
-  );
-  check_error(&ERROR_MESSAGES)?;
+  if is_initialized_new(&holder)? {
+    bail!("client transmitter handler released properly");
+  }
   Ok(())
 }