diff --git a/src/logservice/restoreservice/ob_fetch_log_task.cpp b/src/logservice/restoreservice/ob_fetch_log_task.cpp
index 3a9188365..1019c82d4 100644
--- a/src/logservice/restoreservice/ob_fetch_log_task.cpp
+++ b/src/logservice/restoreservice/ob_fetch_log_task.cpp
@@ -76,9 +76,11 @@ ObFetchLogTask::ObFetchLogTask(const share::ObLSID &id,
     const SCN &pre_scn,
     const palf::LSN &lsn,
     const int64_t size,
-    const int64_t proposal_id) :
+    const int64_t proposal_id,
+    const int64_t version) :
   id_(id),
   proposal_id_(proposal_id),
+  version_(version),
   start_lsn_(lsn),
   cur_lsn_(lsn),
   end_lsn_(lsn + size),
@@ -93,6 +95,7 @@ bool ObFetchLogTask::is_valid() const
 {
   return id_.is_valid()
     && proposal_id_ > 0
+    && version_ > 0
     && pre_scn_.is_valid()
     && start_lsn_.is_valid()
     && cur_lsn_.is_valid()
@@ -104,6 +107,7 @@ void ObFetchLogTask::reset()
 {
   id_.reset();
   proposal_id_ = 0;
+  version_ = 0;
   pre_scn_.reset();
   start_lsn_.reset();
   cur_lsn_.reset();
diff --git a/src/logservice/restoreservice/ob_fetch_log_task.h b/src/logservice/restoreservice/ob_fetch_log_task.h
index de35ade39..33125f367 100644
--- a/src/logservice/restoreservice/ob_fetch_log_task.h
+++ b/src/logservice/restoreservice/ob_fetch_log_task.h
@@ -35,18 +35,20 @@ public:
                  const share::SCN &pre_scn,
                  const palf::LSN &lsn,
                  const int64_t size,
-                 const int64_t proposal_id);
+                 const int64_t proposal_id,
+                 const int64_t version);
 
   ~ObFetchLogTask() { reset(); }
   bool is_valid() const;
   void reset();
-  TO_STRING_KV(K_(id), K_(proposal_id), K_(pre_scn), K_(start_lsn), K_(cur_lsn),
-      K_(end_lsn), K_(max_fetch_scn), K_(max_submit_scn), K_(iter));
+  TO_STRING_KV(K_(id), K_(proposal_id), K_(version), K_(pre_scn), K_(start_lsn),
+      K_(cur_lsn), K_(end_lsn), K_(max_fetch_scn), K_(max_submit_scn), K_(iter));
 
 public:
   share::ObLSID id_;
   // to distinguish stale tasks which is generated in previous leader
   int64_t proposal_id_;
+  int64_t version_;
   share::SCN pre_scn_;    // heuristic log scn to locate piece, may be imprecise one
   palf::LSN start_lsn_;
   palf::LSN cur_lsn_;
diff --git a/src/logservice/restoreservice/ob_log_archive_piece_mgr.cpp b/src/logservice/restoreservice/ob_log_archive_piece_mgr.cpp
index b4642e827..689d52715 100644
--- a/src/logservice/restoreservice/ob_log_archive_piece_mgr.cpp
+++ b/src/logservice/restoreservice/ob_log_archive_piece_mgr.cpp
@@ -56,8 +56,8 @@ void ObLogArchivePieceContext::RoundContext::reset()
 
 bool ObLogArchivePieceContext::RoundContext::is_valid() const
 {
-  return ((RoundContext::State::ACTIVE == state_ && end_scn_ == SCN::max_scn())
-      || (RoundContext::State::STOP == state_ && end_scn_ > start_scn_))
+  return ((RoundContext::State::ACTIVE == state_ && min_piece_id_ > 0 && start_scn_ != SCN::max_scn())
+      || (RoundContext::State::STOP == state_ && end_scn_ != SCN::max_scn() && end_scn_ > start_scn_))
     && round_id_ > 0
     && start_scn_.is_valid()
     && base_piece_id_ > 0
diff --git a/src/logservice/restoreservice/ob_log_restore_handler.cpp b/src/logservice/restoreservice/ob_log_restore_handler.cpp
index fc6c4be78..dfb383124 100644
--- a/src/logservice/restoreservice/ob_log_restore_handler.cpp
+++ b/src/logservice/restoreservice/ob_log_restore_handler.cpp
@@ -186,10 +186,13 @@ int ObLogRestoreHandler::add_source(logservice::DirArray &array, const SCN &end_
     ret = OB_ALLOCATE_MEMORY_FAILED;
   } else {
     ObRemoteRawPathParent *source = static_cast<ObRemoteRawPathParent *>(parent_);
+    const bool source_exist = source->is_valid();
     if (OB_FAIL(source->set(array, end_scn))) {
       CLOG_LOG(WARN, "ObRemoteRawPathParent set failed", K(ret), K(array), K(end_scn));
       ObResSrcAlloctor::free(parent_);
       parent_ = NULL;
+    } else if (! source_exist) {
+      context_.set_issue_version();
     }
   }
   return ret;;
@@ -212,10 +215,13 @@ int ObLogRestoreHandler::add_source(share::ObBackupDest &dest, const SCN &end_sc
     ret = OB_ALLOCATE_MEMORY_FAILED;
   } else {
     ObRemoteLocationParent *source = static_cast<ObRemoteLocationParent *>(parent_);
+    const bool source_exist = source->is_valid();
     if (OB_FAIL(source->set(dest, end_scn))) {
       CLOG_LOG(WARN, "ObRemoteLocationParent set failed", K(ret), K(end_scn), K(dest));
       ObResSrcAlloctor::free(parent_);
       parent_ = NULL;
+    } else if (! source_exist) {
+      context_.set_issue_version();
     }
   }
   return ret;
@@ -238,11 +244,14 @@ int ObLogRestoreHandler::add_source(const common::ObAddr &addr, const SCN &end_s
     ret = OB_ALLOCATE_MEMORY_FAILED;
   } else {
     ObRemoteSerivceParent *source = static_cast<ObRemoteSerivceParent *>(parent_);
+    const bool source_exist = source->is_valid();
     if (OB_FAIL(source->set(addr, end_scn))) {
       CLOG_LOG(WARN, "ObRemoteSerivceParent set failed",
           K(ret), K(end_scn), K(addr), KPC(this));
       ObResSrcAlloctor::free(parent_);
       parent_ = NULL;
+    } else if (! source_exist) {
+      context_.set_issue_version();
     }
   }
   return ret;
@@ -261,6 +270,7 @@ int ObLogRestoreHandler::clean_source()
     CLOG_LOG(INFO, "log_restore_source is empty, clean source", KPC(parent_));
     ObResSrcAlloctor::free(parent_);
     parent_ = NULL;
+    context_.reset();
   }
   return ret;
 }
@@ -340,6 +350,7 @@ void ObLogRestoreHandler::deep_copy_source(ObRemoteSourceGuard &source_guard)
 
 int ObLogRestoreHandler::schedule(const int64_t id,
     const int64_t proposal_id,
+    const int64_t version,
     const LSN &lsn,
     bool &scheduled)
 {
@@ -350,7 +361,7 @@ int ObLogRestoreHandler::schedule(const int64_t id,
     ret = OB_NOT_INIT;
   } else if (OB_UNLIKELY(! lsn.is_valid())) {
     ret = OB_INVALID_ARGUMENT;
-  } else if (id != id_ || proposal_id != proposal_id_) {
+  } else if (id != id_ || proposal_id != proposal_id_ || version != context_.issue_version_) {
     // stale task
   } else {
     scheduled = true;
@@ -365,23 +376,24 @@ int ObLogRestoreHandler::try_retire_task(ObFetchLogTask &task, bool &done)
   done = false;
   int ret = OB_SUCCESS;
   WLockGuard guard(lock_);
-  if (OB_UNLIKELY(!task.is_valid())) {
+  if (IS_NOT_INIT) {
+    ret = OB_NOT_INIT;
+  } else if (OB_UNLIKELY(!task.is_valid() || task.id_.id() != id_)) {
     ret = OB_INVALID_ARGUMENT;
     CLOG_LOG(WARN, "invalid argument", K(ret), K(task));
   } else if (! is_strong_leader(role_) || NULL == parent_) {
     done = true;
-    CLOG_LOG(INFO, "ls not leader, stale task, just skip it", K(task), K(role_));
-  } else if (OB_UNLIKELY(task.id_.id() != id_ || task.proposal_id_ != proposal_id_)) {
+    CLOG_LOG(INFO, "ls not leader or source is NULL, stale task, just skip it", K(task), K(role_));
+  } else if (OB_UNLIKELY(task.proposal_id_ != proposal_id_
+        || task.version_ != context_.issue_version_)) {
     done = true;
     CLOG_LOG(INFO, "stale task, just skip it", K(task), KPC(this));
   } else if (context_.max_fetch_lsn_ >= task.end_lsn_ || parent_->to_end()) {
     done = true;
+    context_.issue_task_num_--;
   } else if (context_.max_fetch_lsn_ >= task.start_lsn_) {
     task.cur_lsn_ = context_.max_fetch_lsn_;
   }
-  if (done) {
-    context_.issue_task_num_--;
-  }
   return ret;
 }
 
diff --git a/src/logservice/restoreservice/ob_log_restore_handler.h b/src/logservice/restoreservice/ob_log_restore_handler.h
index 135d0d288..23f4d57b5 100644
--- a/src/logservice/restoreservice/ob_log_restore_handler.h
+++ b/src/logservice/restoreservice/ob_log_restore_handler.h
@@ -116,7 +116,11 @@ public:
   // @brief the big range of log is separated into small tasks, so as to do parallel,
   //        concise dispatch is needed, here is to check if new task is in turn
   int need_schedule(bool &need_schedule, int64_t &proposal_id, ObRemoteFetchContext &context) const;
-  int schedule(const int64_t id, const int64_t proposal_id, const LSN &lsn, bool &scheduled);
+  int schedule(const int64_t id,
+      const int64_t proposal_id,
+      const int64_t version,
+      const LSN &lsn,
+      bool &scheduled);
   // @brief try retire fetch log task
   // @param[in] ObFetchLogTask &, the remote fetch log task
   // @param[out] bool &, the remote fetch log task is to end or not, retire it if true
diff --git a/src/logservice/restoreservice/ob_remote_fetch_context.cpp b/src/logservice/restoreservice/ob_remote_fetch_context.cpp
index 8cfe01f6a..d6da72fe7 100644
--- a/src/logservice/restoreservice/ob_remote_fetch_context.cpp
+++ b/src/logservice/restoreservice/ob_remote_fetch_context.cpp
@@ -11,6 +11,10 @@
  */
 
 #include "ob_remote_fetch_context.h"
+#include "lib/ob_define.h"
+#include "lib/ob_errno.h"
+#include "lib/time/ob_time_utility.h"
+#include "lib/utility/ob_macro_utils.h"
 
 namespace oceanbase
 {
@@ -20,6 +24,7 @@ namespace logservice
 ObRemoteFetchContext &ObRemoteFetchContext::operator=(const ObRemoteFetchContext &other)
 {
   issue_task_num_ = other.issue_task_num_;
+  issue_version_ = other.issue_version_;
   last_fetch_ts_ = other.last_fetch_ts_;
   max_submit_lsn_ = other.max_submit_lsn_;
   max_fetch_lsn_ = other.max_fetch_lsn_;
@@ -31,6 +36,7 @@ ObRemoteFetchContext &ObRemoteFetchContext::operator=(const ObRemoteFetchContext
 void ObRemoteFetchContext::reset()
 {
   issue_task_num_ = 0;
+  issue_version_ = OB_INVALID_TIMESTAMP;
   last_fetch_ts_ = OB_INVALID_TIMESTAMP;
   max_submit_lsn_.reset();
   max_fetch_lsn_.reset();
@@ -55,5 +61,15 @@ int ObRemoteFetchContext::reset_sorted_tasks()
   return ret;
 }
 
+void ObRemoteFetchContext::set_issue_version()
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(OB_INVALID_TIMESTAMP != issue_version_)) {
+    ret = OB_ERR_UNEXPECTED;
+    CLOG_LOG(ERROR, "issue_version is valid", KPC(this));
+  } else {
+    issue_version_ = common::ObTimeUtility::current_time_ns();
+  }
+}
 } // namespace logservice
 } // namespace oceanbase
diff --git a/src/logservice/restoreservice/ob_remote_fetch_context.h b/src/logservice/restoreservice/ob_remote_fetch_context.h
index fc2cc7e2a..c66cb4770 100644
--- a/src/logservice/restoreservice/ob_remote_fetch_context.h
+++ b/src/logservice/restoreservice/ob_remote_fetch_context.h
@@ -28,6 +28,7 @@ namespace logservice
 struct ObRemoteFetchContext
 {
   int64_t issue_task_num_;
+  int64_t issue_version_;
   int64_t last_fetch_ts_;     // 最后一次拉日志时间
   palf::LSN max_submit_lsn_;        // 提交远程日志拉取任务最大LSN
   palf::LSN max_fetch_lsn_;         // 拉到最后一条日志end_lsn
@@ -40,8 +41,10 @@ struct ObRemoteFetchContext
   ObRemoteFetchContext &operator=(const ObRemoteFetchContext &other);
   void reset();
   int reset_sorted_tasks();
-  TO_STRING_KV(K_(issue_task_num), K_(last_fetch_ts), K_(max_submit_lsn), K_(max_fetch_lsn),
-      K_(max_fetch_scn), K_(error_context), "task_count", submit_array_.count());
+  void set_issue_version();
+  TO_STRING_KV(K_(issue_task_num), K_(issue_version), K_(last_fetch_ts),
+      K_(max_submit_lsn), K_(max_fetch_lsn), K_(max_fetch_scn),
+      K_(error_context), "task_count", submit_array_.count());
 };
 } // namespace logservice
 } // namespace oceanbase
diff --git a/src/logservice/restoreservice/ob_remote_fetch_log.cpp b/src/logservice/restoreservice/ob_remote_fetch_log.cpp
index 4d326f2e4..565c54524 100644
--- a/src/logservice/restoreservice/ob_remote_fetch_log.cpp
+++ b/src/logservice/restoreservice/ob_remote_fetch_log.cpp
@@ -125,6 +125,7 @@ int ObRemoteFetchLogImpl::do_fetch_log_(ObLS &ls)
   bool can_fetch_log = false;
   bool need_schedule = false;
   int64_t proposal_id = -1;
+  int64_t version = 0;
   LSN lsn;
   SCN pre_scn;   // scn to locate piece
   LSN max_fetch_lsn;
@@ -138,13 +139,13 @@ int ObRemoteFetchLogImpl::do_fetch_log_(ObLS &ls)
     LOG_WARN("check replica status failed", K(ret), K(ls));
   } else if (! can_fetch_log) {
     // just skip
-  } else if (OB_FAIL(check_need_schedule_(ls, need_schedule,
-          proposal_id, max_fetch_lsn, last_fetch_ts, task_count))) {
+  } else if (OB_FAIL(check_need_schedule_(ls, need_schedule, proposal_id,
+          version, max_fetch_lsn, last_fetch_ts, task_count))) {
     LOG_WARN("check need schedule failed", K(ret), K(id));
   } else if (! need_schedule) {
   } else if (OB_FAIL(get_fetch_log_base_lsn_(ls, max_fetch_lsn, last_fetch_ts, pre_scn, lsn))) {
     LOG_WARN("get fetch log base lsn failed", K(ret), K(id));
-  } else if (OB_FAIL(submit_fetch_log_task_(ls, pre_scn, lsn, task_count, proposal_id))) {
+  } else if (OB_FAIL(submit_fetch_log_task_(ls, pre_scn, lsn, task_count, proposal_id, version))) {
     LOG_WARN("submit fetch log task failed", K(ret), K(id), K(lsn), K(task_count));
   } else {
     LOG_TRACE("do fetch log succ", K(id), K(lsn), K(task_count));
@@ -169,6 +170,7 @@ int ObRemoteFetchLogImpl::check_replica_status_(ObLS &ls, bool &can_fetch_log)
 int ObRemoteFetchLogImpl::check_need_schedule_(ObLS &ls,
     bool &need_schedule,
     int64_t &proposal_id,
+    int64_t &version,
     LSN &lsn,
     int64_t &last_fetch_ts,
     int64_t &task_count)
@@ -195,6 +197,7 @@ int ObRemoteFetchLogImpl::check_need_schedule_(ObLS &ls,
   } else if (need_delay) {
     need_schedule = false;
   } else {
+    version = context.issue_version_;
     lsn = context.max_submit_lsn_;
     last_fetch_ts = context.last_fetch_ts_;
     task_count = concurrency - context.issue_task_num_;
@@ -264,7 +267,8 @@ int ObRemoteFetchLogImpl::submit_fetch_log_task_(ObLS &ls,
     const SCN &scn,
     const LSN &lsn,
     const int64_t task_count,
-    const int64_t proposal_id)
+    const int64_t proposal_id,
+    const int64_t version)
 {
   int ret = OB_SUCCESS;
   LSN start_lsn = lsn;
@@ -275,7 +279,7 @@ int ObRemoteFetchLogImpl::submit_fetch_log_task_(ObLS &ls,
     const LSN end_lsn = LSN((start_lsn.val_ / max_size + 1) * max_size);
     const int64_t size = static_cast<int64_t>(end_lsn - start_lsn);
     scheduled = false;
-    if (OB_FAIL(do_submit_fetch_log_task_(ls, scn, start_lsn, size, proposal_id, scheduled))) {
+    if (OB_FAIL(do_submit_fetch_log_task_(ls, scn, start_lsn, size, proposal_id, version, scheduled))) {
       LOG_WARN("do submit fetch log task failed", K(ret), K(ls));
     } else if (! scheduled) {
       break;
@@ -291,6 +295,7 @@ int ObRemoteFetchLogImpl::do_submit_fetch_log_task_(ObLS &ls,
     const LSN &lsn,
     const int64_t size,
     const int64_t proposal_id,
+    const int64_t version,
     bool &scheduled)
 {
   int ret = OB_SUCCESS;
@@ -302,12 +307,12 @@ int ObRemoteFetchLogImpl::do_submit_fetch_log_task_(ObLS &ls,
     ret = OB_ALLOCATE_MEMORY_FAILED;
     LOG_WARN("allocate memory failed", K(ret), K(id));
   } else {
-    task = new (data) ObFetchLogTask(id, scn, lsn, size, proposal_id);
+    task = new (data) ObFetchLogTask(id, scn, lsn, size, proposal_id, version);
     ObLogRestoreHandler *restore_handler = NULL;
     if (OB_ISNULL(restore_handler = ls.get_log_restore_handler())) {
       ret = OB_ERR_UNEXPECTED;
       LOG_ERROR("get restore_handler failed", K(ret), K(ls));
-    } else if (OB_FAIL(restore_handler->schedule(id.id(), proposal_id, lsn + size, scheduled))) {
+    } else if (OB_FAIL(restore_handler->schedule(id.id(), proposal_id, version, lsn + size, scheduled))) {
       LOG_WARN("schedule failed", K(ret), K(ls));
     } else if (! scheduled) {
       // not scheduled
diff --git a/src/logservice/restoreservice/ob_remote_fetch_log.h b/src/logservice/restoreservice/ob_remote_fetch_log.h
index c23cf2df2..0d81c8aa6 100644
--- a/src/logservice/restoreservice/ob_remote_fetch_log.h
+++ b/src/logservice/restoreservice/ob_remote_fetch_log.h
@@ -61,12 +61,14 @@ private:
   int do_fetch_log_(ObLS &ls);
   int check_replica_status_(ObLS &ls, bool &can_fetch_log);
   int check_need_schedule_(ObLS &ls, bool &need_schedule, int64_t &proposal_id,
-      LSN &lsn, int64_t &last_fetch_ts, int64_t &task_count);
+      int64_t &version, LSN &lsn, int64_t &last_fetch_ts, int64_t &task_count);
   int check_need_delay_(const ObLSID &id, bool &need_delay);
   int get_fetch_log_base_lsn_(ObLS &ls, const LSN &max_fetch_lsn, const int64_t last_fetch_ts, share::SCN &scn, LSN &lsn);
   int get_palf_base_lsn_scn_(ObLS &ls, LSN &lsn, share::SCN &scn);
-  int submit_fetch_log_task_(ObLS &ls, const share::SCN &scn, const LSN &lsn, const int64_t task_count, const int64_t proposal_id);
-  int do_submit_fetch_log_task_(ObLS &ls, const share::SCN &scn, const LSN &lsn, const int64_t size, const int64_t proposal_id, bool &scheduled);
+  int submit_fetch_log_task_(ObLS &ls, const share::SCN &scn, const LSN &lsn,
+      const int64_t task_count, const int64_t proposal_id, const int64_t version);
+  int do_submit_fetch_log_task_(ObLS &ls, const share::SCN &scn, const LSN &lsn, const int64_t size,
+      const int64_t proposal_id, const int64_t version, bool &scheduled);
 
 private:
   bool inited_;
diff --git a/src/logservice/restoreservice/ob_remote_fetch_log_worker.cpp b/src/logservice/restoreservice/ob_remote_fetch_log_worker.cpp
index 206cd2e9e..378d8e9e2 100644
--- a/src/logservice/restoreservice/ob_remote_fetch_log_worker.cpp
+++ b/src/logservice/restoreservice/ob_remote_fetch_log_worker.cpp
@@ -239,6 +239,7 @@ void ObRemoteFetchWorker::do_thread_task_()
 
 int ObRemoteFetchWorker::handle_single_task_()
 {
+  DEBUG_SYNC(BEFORE_RESTORE_HANDLE_FETCH_LOG_TASK);
   int ret = OB_SUCCESS;
   void *data = NULL;
   if (OB_FAIL(task_queue_.pop(data))) {
diff --git a/src/share/ob_debug_sync_point.h b/src/share/ob_debug_sync_point.h
index 8ad0328a4..9f805771e 100644
--- a/src/share/ob_debug_sync_point.h
+++ b/src/share/ob_debug_sync_point.h
@@ -448,6 +448,7 @@ class ObString;
     ACT(BEFORE_BUILD_TABLET_GROUP_INFO,)\
     ACT(BEFORE_RESTORE_SERVICE_PUSH_FETCH_DATA,)\
     ACT(AFTER_MIGRATION_REPORT_LS_META_TABLE,)\
+    ACT(BEFORE_RESTORE_HANDLE_FETCH_LOG_TASK,)\
     ACT(MAX_DEBUG_SYNC_POINT,)
 
 DECLARE_ENUM(ObDebugSyncPoint, debug_sync_point, OB_DEBUG_SYNC_POINT_DEF);