diff --git a/core/src/data_substrate.cpp b/core/src/data_substrate.cpp
index 80d5d004..cb66253e 100644
--- a/core/src/data_substrate.cpp
+++ b/core/src/data_substrate.cpp
@@ -21,7 +21,6 @@
  */
 
 #include <gflags/gflags.h>
-#include <sys/resource.h>
 #include <sys/sysinfo.h>
 
 #include <filesystem>
@@ -667,15 +666,6 @@ bool DataSubstrate::LoadCoreAndNetworkConfig(const INIReader &config_reader)
         !CheckCommandLineFlagIsDefault("maxclients")
             ? FLAGS_maxclients
             : config_reader.GetInteger("local", "maxclients", FLAGS_maxclients);
-    struct rlimit ulimit
-    {
-    };
-    ulimit.rlim_cur = core_config_.maxclients;
-    ulimit.rlim_max = core_config_.maxclients;
-    if (setrlimit(RLIMIT_NOFILE, &ulimit) == -1)
-    {
-        LOG(WARNING) << "Failed to set maxclients.";
-    }
     core_config_.bootstrap =
         !CheckCommandLineFlagIsDefault("bootstrap")
             ? FLAGS_bootstrap
diff --git a/docs/01-architecture-overview.md b/docs/01-architecture-overview.md
index 556e3856..5b320fd5 100644
--- a/docs/01-architecture-overview.md
+++ b/docs/01-architecture-overview.md
@@ -75,6 +75,7 @@ All knobs follow *gflag overrides ini section* (`[local]`, `[cluster]`, `[store]
 | `auto_redirect` | false | Redirect object commands to remote owner NG internally |
 | `enable_key_cache` | false | Key cache (non-MVCC only) |
 | `enable_io_uring` / `raft_log_async_fsync` | false | IO engine options |
+| `maxclients` | 500000 | API-server connection admission limit; does not modify process file-descriptor limits |
 | `max_standby_lag` | 400000 | Max primary→standby message lag |
 
 Build-time options are described in the repo `CLAUDE.md` (`WITH_DATA_STORE`, `WITH_LOG_STATE`, `WITH_LOG_SERVICE`, `EXT_TX_PROC_ENABLED`, `ELOQ_MODULE_ENABLED`).
diff --git a/store_handler/eloq_data_store_service/eloqstore b/store_handler/eloq_data_store_service/eloqstore
index f44d59af..09a42270 160000
--- a/store_handler/eloq_data_store_service/eloqstore
+++ b/store_handler/eloq_data_store_service/eloqstore
@@ -1 +1 @@
-Subproject commit f44d59affa345e2705948cc09716471961983ec1
+Subproject commit 09a4227028cc0de58bd5e4af4e10577438ca5563
diff --git a/store_handler/eloq_data_store_service/main.cpp b/store_handler/eloq_data_store_service/main.cpp
index 53848f18..74cc3482 100644
--- a/store_handler/eloq_data_store_service/main.cpp
+++ b/store_handler/eloq_data_store_service/main.cpp
@@ -23,7 +23,6 @@
 #include <brpc/server.h>
 #include <gflags/gflags.h>
 #include <gflags/gflags_declare.h>
-#include <sys/resource.h>
 #include <sys/sysinfo.h>
 #include <unistd.h>
 
@@ -88,8 +87,6 @@ DEFINE_bool(bootstrap,
             "Init data store config file and exit. (Only support bootstrap one "
             "node now.)");
 
-DEFINE_uint32(maxclients, 300000, "maxclients");
-
 static bool CheckCommandLineFlagIsDefault(const char *name)
 {
     gflags::CommandLineFlagInfo flag_info;
@@ -205,22 +202,6 @@ int main(int argc, char *argv[])
         std::filesystem::create_directories(data_path);
     }
 
-    // Set maxclients
-    uint32_t maxclients =
-        !CheckCommandLineFlagIsDefault("maxclients")
-            ? FLAGS_maxclients
-            : config_reader.GetInteger("local", "maxclients", FLAGS_maxclients);
-
-    struct rlimit ulimit
-    {
-    };
-    ulimit.rlim_cur = maxclients;
-    ulimit.rlim_max = maxclients;
-    if (setrlimit(RLIMIT_NOFILE, &ulimit) == -1)
-    {
-        LOG(WARNING) << "Failed to set maxclients.";
-    }
-
     std::string ds_config_file_path = data_path + "/dss_config.ini";
 
     EloqDS::DataStoreServiceClusterManager ds_config;
diff --git a/third_party/src/brpc b/third_party/src/brpc
index c12822d4..bf7c9cb8 160000
--- a/third_party/src/brpc
+++ b/third_party/src/brpc
@@ -1 +1 @@
-Subproject commit c12822d4931a59a9c2cc42df061975e114e93590
+Subproject commit bf7c9cb8a233a370c16e3ebb7664c7db57d97ac8
diff --git a/tx_service/include/tx_service.h b/tx_service/include/tx_service.h
index 0bdea682..da9b1a6f 100644
--- a/tx_service/include/tx_service.h
+++ b/tx_service/include/tx_service.h
@@ -1068,6 +1068,11 @@ class TxServiceModule : public eloq::EloqModule
 public:
     TxServiceModule() = default;
 
+    eloq::ModuleType Type() const override
+    {
+        return eloq::ModuleType::kTxService;
+    }
+
     void Init(std::vector<std::unique_ptr<TxProcessor>> *tx_processors)
     {
         tx_processors_ = tx_processors;