diff --git a/src/mito2/src/cache/write_cache.rs b/src/mito2/src/cache/write_cache.rs
index 455e7c9e3057..23304a8b1ea9 100644
--- a/src/mito2/src/cache/write_cache.rs
+++ b/src/mito2/src/cache/write_cache.rs
@@ -81,12 +81,6 @@ pub(crate) struct UploadPart {
     pub(crate) file_metas: Vec<FileMeta>,
     /// Target storage of SSTs.
     storage: Option<String>,
-    /// Sender to send notify.
-    request_sender: Option<Sender<WorkerRequest>>,
-    /// The last entry id has been flushed.
-    flushed_entry_id: Option<EntryId>,
-    /// The last sequence has been flushed.
-    flushed_sequence: Option<SequenceNumber>,
 }
 
 /// Writer to build a upload part.
@@ -101,12 +95,6 @@ pub(crate) struct UploadPartWriter {
     file_metas: Vec<FileMeta>,
     /// Target storage of SSTs.
     storage: Option<String>,
-    /// Sender to send notify.
-    request_sender: Option<Sender<WorkerRequest>>,
-    /// The last entry id has been flushed.
-    flushed_entry_id: Option<EntryId>,
-    /// The last sequence has been flushed.
-    flushed_sequence: Option<SequenceNumber>,
 }
 
 impl UploadPartWriter {
@@ -118,9 +106,6 @@ impl UploadPartWriter {
             region_dir: String::new(),
             file_metas: Vec::new(),
             storage: None,
-            request_sender: None,
-            flushed_entry_id: None,
-            flushed_sequence: None,
         }
     }
 
@@ -138,27 +123,6 @@ impl UploadPartWriter {
         self
     }
 
-    /// Sets request sender for the part.
-    #[must_use]
-    pub(crate) fn with_request_sender(mut self, sender: Option<Sender<WorkerRequest>>) -> Self {
-        self.request_sender = sender;
-        self
-    }
-
-    /// Sets flushed entry id.
-    #[must_use]
-    pub(crate) fn with_flushed_entry_id(mut self, entry_id: Option<EntryId>) -> Self {
-        self.flushed_entry_id = entry_id;
-        self
-    }
-
-    /// Sets flushed sequence.
-    #[must_use]
-    pub(crate) fn with_flushed_sequence(mut self, sequence: Option<SequenceNumber>) -> Self {
-        self.flushed_sequence = sequence;
-        self
-    }
-
     /// Reserve capacity for `additional` files.
     pub(crate) fn reserve_capacity(&mut self, additional: usize) {
         self.file_metas.reserve(additional);
@@ -192,9 +156,6 @@ impl UploadPartWriter {
             region_dir: self.region_dir,
             file_metas: self.file_metas,
             storage: self.storage,
-            request_sender: self.request_sender,
-            flushed_entry_id: self.flushed_entry_id,
-            flushed_sequence: self.flushed_sequence,
         }
     }
 }
diff --git a/src/mito2/src/compaction/twcs.rs b/src/mito2/src/compaction/twcs.rs
index 7ada8bc69c6e..d8bf03cb500f 100644
--- a/src/mito2/src/compaction/twcs.rs
+++ b/src/mito2/src/compaction/twcs.rs
@@ -287,8 +287,7 @@ impl TwcsCompactionTask {
         let mut part_writer = self
             .sst_layer
             .upload_part_writer(self.metadata.clone(), &self.cache_manager)
-            .with_storage(self.storage.clone())
-            .with_request_sender(Some(self.request_sender.clone()));
+            .with_storage(self.storage.clone());
         for output in self.outputs.drain(..) {
             compacted_inputs.extend(output.inputs.iter().map(FileHandle::meta));
 
diff --git a/src/mito2/src/flush.rs b/src/mito2/src/flush.rs
index a36c6674bffd..ee3a0a6d8859 100644
--- a/src/mito2/src/flush.rs
+++ b/src/mito2/src/flush.rs
@@ -252,10 +252,7 @@ impl RegionFlushTask {
         let mut writer = self
             .access_layer
             .upload_part_writer(version.metadata.clone(), &self.cache_manager)
-            .with_storage(version.options.storage.clone())
-            .with_request_sender(Some(self.request_sender.clone()))
-            .with_flushed_entry_id(Some(version_data.last_entry_id))
-            .with_flushed_sequence(Some(version_data.committed_sequence));
+            .with_storage(version.options.storage.clone());
 
         let worker_request = match self
             .flush_memtables(&version_data.version, &mut writer)