diff --git a/include/agVstCli.hrl b/include/agVstCli.hrl
index fbe4935..e7c09d9 100644
--- a/include/agVstCli.hrl
+++ b/include/agVstCli.hrl
@@ -4,8 +4,8 @@
 -define(agBeamPool, agBeamPool).
 -define(agBeamAgency, agBeamAgency).
 
--define(agMessageId, agMessageId).
--define(agMaxMessageId, 576460752303423486).
+%% HTTP 连接的保持活动超时由keep-alive-timeout(默认为300秒)控制 数据库安装后配置大一点 连接池进程默认半个小时发送一个续期请求
+-define(agKeepAliveTime, 3600000).
 
 -define(AgUndef, 0).                %% Wait One Chunk start
 -define(AgCHeader, 1).              %% Wait One Chunk header
@@ -15,9 +15,6 @@
 -define(AgCDone, 5).                %% receve one Chunk done
 -define(AgMDone, 6).                %% receve one message done
 
-%% pidFrom pid() to reply; undefiend  discard; timeOut 该请求标记为过期了 discard
--record(msgIdCache, {pidFrom, timerRef, chunkCnt, msgBuffer}).
-
 -define(AgMBIdx, 4).
 -define(AgCCIdx, 3).
 -define(AgTRIdx, 2).
diff --git a/src/agVstCli/agSslAgency.erl b/src/agVstCli/agSslAgency.erl
index 990ad7a..859a9e2 100644
--- a/src/agVstCli/agSslAgency.erl
+++ b/src/agVstCli/agSslAgency.erl
@@ -68,6 +68,7 @@ moduleInit(Parent, Args) ->
                         {200, _BodyMap, _HeaderMap} ->
                            NewSrvState = SrvState#srvState{dbName = DbName, reConnState = agAgencyUtils:resetReConnState(ReConnState), socket = Socket, vstSize = VstSize},
                            proc_lib:init_ack(Parent, {ok, self()}),
+                           erlang:start_timer(?agKeepAliveTime, self(), keep_alive),
                            ?MODULE:loop(Parent, NewSrvState, CliState);
                         _Err ->
                            proc_lib:init_ack(Parent, {error, _Err}),
@@ -196,6 +197,15 @@ handleMsg({'$gen_call', FromTag, '$SrvInfo'}, SrvState, CliState) ->
    {To, Tag} = FromTag,
    catch To ! {Tag, {erlang:get(), SrvState, CliState}},
    {ok, SrvState, CliState};
+handleMsg({timeout, _TimerRef, keep_alive}, #srvState{socket = Socket} = SrvState, #cliState{backlogNum = BacklogNum} = CliState) ->
+   case Socket /= undefined andalso BacklogNum =< 0 of
+      true ->
+         self() ! #agReq{method = ?AgGet, path = <<"/_admin/time">>, queryPars = ?AgDefQuery, headers = ?AgDefHeader, body = ?AgDefBody, messageId = agVstCli:getMsgId(), fromPid = undefined, overTime = infinity, isSystem = false};
+      _ ->
+         ignore
+   end,
+   erlang:start_timer(?agKeepAliveTime, self(), keep_alive),
+   {ok, SrvState, CliState};
 handleMsg(Msg, #srvState{serverName = ServerName} = SrvState, CliState) ->
    ?AgErr(ServerName, "unknown msg: ~p ~p ~p~n", [Msg, SrvState, CliState]),
    {ok, SrvState, CliState}.
diff --git a/src/agVstCli/agTcpAgency.erl b/src/agVstCli/agTcpAgency.erl
index 7aebb6a..24a01c2 100644
--- a/src/agVstCli/agTcpAgency.erl
+++ b/src/agVstCli/agTcpAgency.erl
@@ -68,6 +68,7 @@ moduleInit(Parent, Args) ->
                         {200, _BodyMap, _HeaderMap} ->
                            NewSrvState = SrvState#srvState{dbName = DbName, reConnState = agAgencyUtils:resetReConnState(ReConnState), socket = Socket, vstSize = VstSize},
                            proc_lib:init_ack(Parent, {ok, self()}),
+                           erlang:start_timer(?agKeepAliveTime, self(), keep_alive),
                            ?MODULE:loop(Parent, NewSrvState, CliState);
                         _Err ->
                            proc_lib:init_ack(Parent, {error, _Err}),
@@ -201,6 +202,15 @@ handleMsg({'$gen_call', FromTag, '$SrvInfo'}, SrvState, CliState) ->
    {To, Tag} = FromTag,
    catch To ! {Tag, {erlang:get(), SrvState, CliState}},
    {ok, SrvState, CliState};
+handleMsg({timeout, _TimerRef, keep_alive}, #srvState{socket = Socket} = SrvState, #cliState{backlogNum = BacklogNum} = CliState) ->
+   case Socket /= undefined andalso BacklogNum =< 0 of
+      true ->
+         self() ! #agReq{method = ?AgGet, path = <<"/_admin/time">>, queryPars = ?AgDefQuery, headers = ?AgDefHeader, body = ?AgDefBody, messageId = agVstCli:getMsgId(), fromPid = undefined, overTime = infinity, isSystem = false};
+      _ ->
+         ignore
+   end,
+   erlang:start_timer(?agKeepAliveTime, self(), keep_alive),
+   {ok, SrvState, CliState};
 handleMsg(Msg, #srvState{serverName = ServerName} = SrvState, CliState) ->
    ?AgErr(ServerName, "unknown msg: ~p ~p ~p~n", [Msg, SrvState, CliState]),
    {ok, SrvState, CliState}.