diff --git a/deps/oblib/src/lib/allocator/ob_ctx_define.h b/deps/oblib/src/lib/allocator/ob_ctx_define.h
index c992d49ba8..b2645165d2 100644
--- a/deps/oblib/src/lib/allocator/ob_ctx_define.h
+++ b/deps/oblib/src/lib/allocator/ob_ctx_define.h
@@ -39,7 +39,7 @@ public:
     PARALLEL_DEF(DEFAULT_CTX_ID, 32)
     PARALLEL_DEF(LIBEASY, 32)
     PARALLEL_DEF(PLAN_CACHE_CTX_ID, 4)
-    PARALLEL_DEF(LOGGER_CTX_ID, 1)
+    PARALLEL_DEF(LOGGER_CTX_ID, 4)
 #undef CTX_PARALLEL_DEF
 
 #define ENABLE_DIRTY_LIST_DEF(name) ctx_attr_[ObCtxIds::name].enable_dirty_list_ = true;
diff --git a/deps/oblib/src/lib/oblog/ob_base_log_writer.h b/deps/oblib/src/lib/oblog/ob_base_log_writer.h
index 414f8240c9..746a611dfb 100644
--- a/deps/oblib/src/lib/oblog/ob_base_log_writer.h
+++ b/deps/oblib/src/lib/oblog/ob_base_log_writer.h
@@ -19,6 +19,7 @@
 
 #include "lib/ob_define.h"
 #include "lib/utility/ob_macro_utils.h"
+#include "lib/atomic/ob_atomic.h"
 
 namespace oceanbase
 {
@@ -87,7 +88,11 @@ public:
   bool has_stopped() const { return has_stopped_; }
   virtual int64_t get_queued_item_cnt() const
   {
-    return log_item_push_idx_ - log_item_pop_idx_;
+    return ATOMIC_LOAD(&log_item_push_idx_) - ATOMIC_LOAD(&log_item_pop_idx_);
+  }
+  bool is_queue_full()
+  {
+    return get_queued_item_cnt() >= log_cfg_.max_buffer_item_cnt_;
   }
 protected:
   void flush_log();
diff --git a/deps/oblib/src/lib/oblog/ob_log.cpp b/deps/oblib/src/lib/oblog/ob_log.cpp
index 5dffee2468..1423aee2e4 100644
--- a/deps/oblib/src/lib/oblog/ob_log.cpp
+++ b/deps/oblib/src/lib/oblog/ob_log.cpp
@@ -1558,7 +1558,7 @@ int ObLogger::init(const ObBaseLogWriterCfg &log_cfg,
     }
     if (OB_SUCC(ret)) {
       allocator_->set_limit(limit);
-      allocator_->set_nway(4);
+      allocator_->set_nway(8);
       if (OB_FAIL(ObBaseLogWriter::init(log_cfg, thread_name))) {
         LOG_STDERR("init ObBaseLogWriter error. ret=%d\n", ret);
       } else if (OB_FAIL(ObBaseLogWriter::start())) {
diff --git a/deps/oblib/src/lib/oblog/ob_log.h b/deps/oblib/src/lib/oblog/ob_log.h
index 01dfd5c462..c2ee971904 100644
--- a/deps/oblib/src/lib/oblog/ob_log.h
+++ b/deps/oblib/src/lib/oblog/ob_log.h
@@ -1233,7 +1233,9 @@ inline void ObLogger::do_log_message(const bool is_async,
   limited_left_log_size_ = 0;
   BASIC_TIME_GUARD(tg, "ObLog");
   int64_t start_ts = OB_TSC_TIMESTAMP.current_time();
-  if (FD_TRACE_FILE != fd_type && OB_FAIL(check_tl_log_limiter(location_hash_val, level, errcode, log_size,
+  if (is_queue_full()) {
+    // do-nothing
+  } else if (FD_TRACE_FILE != fd_type && OB_FAIL(check_tl_log_limiter(location_hash_val, level, errcode, log_size,
           allow, limiter_info))) {
     LOG_STDERR("precheck_tl_log_limiter error, ret=%d\n", ret);
   } else if (OB_UNLIKELY(!allow) && !need_print_log_limit_msg()) {