diff --git a/src/logservice/palf/log_config_mgr.cpp b/src/logservice/palf/log_config_mgr.cpp
index 54d8e7a17..364cc8fee 100644
--- a/src/logservice/palf/log_config_mgr.cpp
+++ b/src/logservice/palf/log_config_mgr.cpp
@@ -1047,7 +1047,7 @@ int LogConfigMgr::apply_config_meta_(const int64_t curr_proposal_id,
     } else {
       PALF_LOG(WARN, "update_election_meta_ failed", KR(ret), K_(palf_id), K_(self), K(new_config_info), K_(log_ms_meta));
     }
-  } else if (OB_FAIL(update_match_lsn_map_(args))) {
+  } else if (OB_FAIL(update_match_lsn_map_(args, new_config_info))) {
     PALF_LOG(WARN, "update_match_lsn_map failed", K(ret), K_(palf_id), K_(self), K(args));
   } else if (OB_FAIL(update_complete_config_info_(new_config_info))) {
   } else {
@@ -1060,7 +1060,8 @@ int LogConfigMgr::apply_config_meta_(const int64_t curr_proposal_id,
   return ret;
 }
 
-int LogConfigMgr::update_match_lsn_map_(const LogConfigChangeArgs &args)
+int LogConfigMgr::update_match_lsn_map_(const LogConfigChangeArgs &args,
+    const LogConfigInfo &new_config_info)
 {
   int ret = OB_SUCCESS;
   ObMemberList added_memberlist;
@@ -1070,7 +1071,9 @@ int LogConfigMgr::update_match_lsn_map_(const LogConfigChangeArgs &args)
   } else if (is_remove_log_sync_member_list(args.type_) && OB_FAIL(removed_memberlist.add_member(args.server_))) {
     PALF_LOG(WARN, "add_member failed", K(ret), K_(palf_id), K_(self), K(added_memberlist), K(args));
   }
-  if (OB_SUCC(ret) && OB_FAIL(sw_->config_change_update_match_lsn_map(added_memberlist, removed_memberlist))) {
+  if (OB_SUCC(ret) && OB_FAIL(sw_->config_change_update_match_lsn_map(added_memberlist, \
+          removed_memberlist, new_config_info.log_sync_memberlist_, \
+          new_config_info.log_sync_replica_num_))) {
     PALF_LOG(WARN, "config_change_update_match_lsn_map failed", K(ret), K_(palf_id), K_(self), K(added_memberlist), K(removed_memberlist));
   }
   return ret;
diff --git a/src/logservice/palf/log_config_mgr.h b/src/logservice/palf/log_config_mgr.h
index 3d322bb13..1e7db8bed 100644
--- a/src/logservice/palf/log_config_mgr.h
+++ b/src/logservice/palf/log_config_mgr.h
@@ -319,7 +319,7 @@ private:
                                 const LogConfigChangeArgs &args,
                                 LogConfigInfo &new_config_info) const;
   int update_complete_config_info_(const LogConfigInfo &config_info);
-  int update_match_lsn_map_(const LogConfigChangeArgs &args);
+  int update_match_lsn_map_(const LogConfigChangeArgs &args, const LogConfigInfo &new_config_info);
   int update_election_meta_(const LogConfigInfo &info);
   int update_election_meta_(const ObMemberList &member_list,
                             const LogConfigVersion &config_version,
diff --git a/src/logservice/palf/log_sliding_window.cpp b/src/logservice/palf/log_sliding_window.cpp
index 4ff256b01..c6280f1d5 100644
--- a/src/logservice/palf/log_sliding_window.cpp
+++ b/src/logservice/palf/log_sliding_window.cpp
@@ -2263,6 +2263,26 @@ int LogSlidingWindow::gen_committed_end_lsn_(LSN &new_committed_end_lsn)
   return ret;
 }
 
+int LogSlidingWindow::gen_committed_end_lsn_with_memberlist_(
+    const ObMemberList &member_list,
+    const int64_t replica_num)
+{
+  int ret = OB_SUCCESS;
+  LSN result_lsn;
+  if (!member_list.is_valid() || replica_num <= 0 ||
+      replica_num < member_list.get_member_number()) {
+    ret = OB_INVALID_ARGUMENT;
+    PALF_LOG(WARN, "invalid argumetns", K(ret), K_(palf_id), K_(self), K(member_list), K(replica_num));
+  } else if (OB_FAIL(get_majority_lsn_(member_list, replica_num, result_lsn))) {
+    PALF_LOG(WARN, "get_majority_lsn failed", K(ret), K_(palf_id), K_(self));
+  } else {
+    (void) try_advance_committed_lsn_(result_lsn);
+    PALF_LOG(INFO, "gen_committed_end_lsn_with_memberlist_ finished", K(ret), K_(palf_id),
+        K_(self), K(result_lsn), K(member_list), K(replica_num));
+  }
+  return ret;
+}
+
 int LogSlidingWindow::get_majority_lsn(const ObMemberList &member_list,
                                        const int64_t replica_num,
                                        LSN &result_lsn) const
@@ -3317,7 +3337,11 @@ int LogSlidingWindow::reset_match_lsn_map_()
 }
 
 // need caller hold wlock in PalfHandleImpl
-int LogSlidingWindow::config_change_update_match_lsn_map(const ObMemberList &added_memberlist, const ObMemberList &removed_memberlist)
+int LogSlidingWindow::config_change_update_match_lsn_map(
+    const ObMemberList &added_memberlist,
+    const ObMemberList &removed_memberlist,
+    const ObMemberList &new_log_sync_memberlist,
+    const int64_t new_replica_num)
 {
   int ret = OB_SUCCESS;
   if (IS_NOT_INIT) {
@@ -3350,6 +3374,17 @@ int LogSlidingWindow::config_change_update_match_lsn_map(const ObMemberList &add
       }
     }
   }
+  // Try to advance committed_end_lsn after updating match_lsn_map_.
+  if (OB_SUCC(ret)) {
+    if (state_mgr_->is_leader_active()) {
+      // Only leader with ACTIVE state can generate new committed_end_lsn.
+      // This step is necessary because after removing member, current log_sync_memeber_list
+      // may become self (single member). And if all local logs have been flushed, but
+      // committed_end_lsn is smaller than flushed lsn, self won't have chance to advance it.
+      // So we need try to advance committed_end_lsn here.
+      (void) gen_committed_end_lsn_with_memberlist_(new_log_sync_memberlist, new_replica_num);
+    }
+  }
   PALF_LOG(INFO, "config_change_update_match_lsn_map_ finished", K(ret), K_(palf_id), K_(self), K(added_memberlist), K(removed_memberlist));
   return ret;
 }
diff --git a/src/logservice/palf/log_sliding_window.h b/src/logservice/palf/log_sliding_window.h
index 34bbba35d..04cc0d722 100644
--- a/src/logservice/palf/log_sliding_window.h
+++ b/src/logservice/palf/log_sliding_window.h
@@ -170,7 +170,9 @@ public:
                                     const int64_t &prev_log_proposal_id,
                                     const LSN &committed_end_lsn);
   virtual int config_change_update_match_lsn_map(const ObMemberList &added_memberlist,
-                                                 const ObMemberList &removed_memberlist);
+                                                 const ObMemberList &removed_memberlist,
+                                                 const ObMemberList &new_log_sync_memberlist,
+                                                 const int64_t new_replica_num);
   // ================= log sync part end
   virtual int append_disk_log(const LSN &lsn, const LogGroupEntry &group_entry);
   virtual int report_log_task_trace(const int64_t log_id);
@@ -284,6 +286,9 @@ private:
                                    LogGroupEntryHeader &header,
                                    int64_t &group_log_checksum);
   int gen_committed_end_lsn_(LSN &new_committed_end_lsn);
+  int gen_committed_end_lsn_with_memberlist_(
+    const ObMemberList &member_list,
+    const int64_t replica_num);
   int get_majority_lsn_(const ObMemberList &member_list,
                         const int64_t replica_num,
                         LSN &result_lsn) const;
diff --git a/unittest/logservice/mock_logservice_container/mock_log_sliding_window.h b/unittest/logservice/mock_logservice_container/mock_log_sliding_window.h
index c0f0acb77..320791a90 100644
--- a/unittest/logservice/mock_logservice_container/mock_log_sliding_window.h
+++ b/unittest/logservice/mock_logservice_container/mock_log_sliding_window.h
@@ -324,8 +324,15 @@ public:
     int ret = OB_SUCCESS;
     return ret;
   }
-  int config_change_update_match_lsn_map(const ObMemberList &added_memberlist, const ObMemberList &removed_memberlist)
+  int config_change_update_match_lsn_map(const ObMemberList &added_memberlist,
+      const ObMemberList &removed_memberlist,
+      const ObMemberList &new_log_sync_memberlist,
+      const int64_t new_replica_num)
   {
+    UNUSED(added_memberlist);
+    UNUSED(removed_memberlist);
+    UNUSED(new_log_sync_memberlist);
+    UNUSED(new_replica_num);
     return OB_SUCCESS;
   }
 public: