diff --git a/src/crashLog/lgCrashLog.erl b/src/crashLog/lgCrashLog.erl
index 85e8dcb..ca21d59 100644
--- a/src/crashLog/lgCrashLog.erl
+++ b/src/crashLog/lgCrashLog.erl
@@ -154,7 +154,6 @@ saslLimitedStr(crash_report, Report, FmtMaxBytes) ->
    eFmt:formatBin(<<"~p~n">>, [Report], [{charsLimit, FmtMaxBytes}]).
 
 writeLog(Event, #state{fileName = FileName, fd = FD, inode = Inode, cTime = CTime, flap = Flap, maxFmtSize = FmtMaxBytes, maxFileSize = RotSize, rotator = Rotator} = State) ->
-   %% borrowed from riak_err
    {ReportStr, Pid, MsgStr, _ErrorP} =
       case Event of
          {error, _GL, {Pid1, Fmt, Args}} ->
diff --git a/src/eLog.erl b/src/eLog.erl
index 47feb20..a4be3d0 100644
--- a/src/eLog.erl
+++ b/src/eLog.erl
@@ -69,7 +69,7 @@
 }).
 
 start() ->
-   application:ensure_all_started(eLog).
+   application:ensure_all_started(eLog) .
 
 stop() ->
    application:stop(eLog).
diff --git a/src/eLog_app.erl b/src/eLog_app.erl
index 8292e7b..56c2554 100644
--- a/src/eLog_app.erl
+++ b/src/eLog_app.erl
@@ -8,6 +8,7 @@
 -export([
    start/2
    , stop/1
+   , prep_stop/1
    , doStart/0
    , startSink/1
    , startSink/2
@@ -33,7 +34,7 @@ doStart() ->
    tryStartHandlers(lgUtil:get_env(handlers, ?LgDefHandler), ?LgDefSink),
 
    %% 尝试替换error logger
-   SavedHandlers = tryStartErrLoggerHandler(lgUtil:get_env(errLoggerRedirect, true), lgUtil:get_env(errLoggerHwm, undefined), lgUtil:get_env(errLoggerWhitelist, [])),
+   SavedHandlers = tryStartErrLoggerHandler(lgUtil:get_env(errLoggerRedirect, false), lgUtil:get_env(errLoggerHwm, undefined), lgUtil:get_env(errLoggerWhitelist, [])),
    eLog:upLogLevelCfg(?LgDefSink),
    SavedHandlers.
 
@@ -80,10 +81,13 @@ startTrace({Handler, Filter}) ->
 startTrace({Handler, Filter, Level}) when is_atom(Level) ->
    {ok, _} = eLog:trace(Handler, Filter, Level).
 
-stop(Handlers) ->
+prep_stop(Handlers) ->
    [error_logger:add_report_handler(Handler) || Handler <- Handlers],
    ok.
 
+stop(_State) ->
+   ok.
+
 tryStartAsyncMgr(undefined, _Window, _Sink) ->
    ignore;
 tryStartAsyncMgr(Threshold, Window, Sink) ->
diff --git a/src/watcher/lgHWatcherSrv.erl b/src/watcher/lgHWatcherSrv.erl
index 447558e..984c70c 100644
--- a/src/watcher/lgHWatcherSrv.erl
+++ b/src/watcher/lgHWatcherSrv.erl
@@ -69,7 +69,7 @@ handleInfo({gen_event_EXIT, Module, Reason}, #state{module = Module, config = Co
          ok
    end,
    {noreply, State};
-handleInfo(mReinstallHandler, #state{module = Module, config = Config, sink = Sink}) ->
+handleInfo(mReInstallHandler, #state{module = Module, config = Config, sink = Sink}) ->
    installHandler(Module, Config, Sink),
    kpS;
 handleInfo({reboot, Sink}, _State) ->
@@ -116,6 +116,6 @@ installHandler(Module, Config, Sink) ->
       Error ->
          %% try to reinstall it later
          ?INT_LOG(?error, <<"eLog failed to install handler ~p into ~p, retrying later : ~p">>, [Module, Sink, Error]),
-         erlang:send_after(5000, self(), mReinstallHandler),
+         erlang:send_after(5000, self(), mReInstallHandler),
          ok
    end.