diff --git a/server/Husky/WorkerThread.hpp b/server/Husky/WorkerThread.hpp
index 3ef6114..08937f2 100644
--- a/server/Husky/WorkerThread.hpp
+++ b/server/Husky/WorkerThread.hpp
@@ -27,13 +27,13 @@ class WorkerThread: public ITask {
   void run() {
     do {
       if(!_setsockopt(_sockfd)) {
-        LogFatal("_getsockopt failed.");
+        LogError("_getsockopt failed.");
         break;
       }
       string strSnd, strRetByHandler;
       HttpReqInfo httpReq;
       if(!_receive(_sockfd, httpReq)) {
-        LogFatal("_receive failed.");
+        LogError("_receive failed.");
         break;
       }
 
diff --git a/src/DictTrie.hpp b/src/DictTrie.hpp
index 15b04fb..2e27646 100644
--- a/src/DictTrie.hpp
+++ b/src/DictTrie.hpp
@@ -47,7 +47,10 @@ namespace CppJieba
             
             bool init(const string& dictPath, const string& userDictPath = "")
             {
-                assert(!_trie);
+                if(_trie != NULL) 
+                {
+                    LogFatal("trie already initted");
+                }
                 _loadDict(dictPath);
                 _calculateWeight(_nodeInfos);
                 _minWeight = _findMinWeight(_nodeInfos);
@@ -104,7 +107,10 @@ namespace CppJieba
             void _loadUserDict(const string& filePath, double defaultWeight, const string& defaultTag)
             {
                 ifstream ifs(filePath.c_str());
-                assert(ifs.is_open());
+                if(!ifs.is_open()) 
+                {
+                    LogFatal("file %s open failed.", filePath.c_str());
+                }
                 string line;
                 DictUnit nodeInfo;
                 vector<string> buf;
@@ -113,7 +119,10 @@ namespace CppJieba
                 {
                     buf.clear();
                     split(line, buf, " ");
-                    assert(buf.size() >= 1);
+                    if(buf.size() < 1) 
+                    {
+                        LogFatal("split [%s] result illegal", line.c_str());
+                    }
                     if(!TransCode::decode(buf[0], nodeInfo.word))
                     {
                         LogError("line[%u:%s] illegal.", lineno, line.c_str());
@@ -132,15 +141,21 @@ namespace CppJieba
             void _loadDict(const string& filePath) 
             {
                 ifstream ifs(filePath.c_str());
-                assert(ifs.is_open());
+                if(!ifs.is_open()) 
+                {
+                    LogFatal("file %s open failed.", filePath.c_str());
+                }
                 string line;
                 vector<string> buf;
 
                 DictUnit nodeInfo;
-                for(size_t lineno = 0 ; getline(ifs, line); lineno++)
+                for(size_t lineno = 0; getline(ifs, line); lineno++)
                 {
                     split(line, buf, " ");
-                    assert(buf.size() == DICT_COLUMN_NUM);
+                    if(buf.size() != DICT_COLUMN_NUM) 
+                    {
+                        LogFatal("split result illegal, line: %s, result size: %u", line.c_str(), buf.size());
+                    }
                     
                     if(!TransCode::decode(buf[0], nodeInfo.word))
                     {
diff --git a/src/KeywordExtractor.hpp b/src/KeywordExtractor.hpp
index 1020be8..a6ed647 100644
--- a/src/KeywordExtractor.hpp
+++ b/src/KeywordExtractor.hpp
@@ -91,10 +91,9 @@ namespace CppJieba
             void _loadIdfDict(const string& idfPath)
             {
                 ifstream ifs(idfPath.c_str());
-                if(!ifs)
+                if(!ifs.is_open())
                 {
-                    LogError("open %s failed.", idfPath.c_str());
-                    assert(false);
+                    LogFatal("open %s failed.", idfPath.c_str());
                 }
                 string line ;
                 vector<string> buf;
@@ -127,10 +126,9 @@ namespace CppJieba
             void _loadStopWordDict(const string& filePath)
             {
                 ifstream ifs(filePath.c_str());
-                if(!ifs)
+                if(!ifs.is_open())
                 {
-                    LogError("open %s failed.", filePath.c_str());
-                    assert(false);
+                    LogFatal("open %s failed.", filePath.c_str());
                 }
                 string line ;
                 while(getline(ifs, line))
diff --git a/src/Limonp/Logger.hpp b/src/Limonp/Logger.hpp
index 14c1438..d46cb9a 100644
--- a/src/Limonp/Logger.hpp
+++ b/src/Limonp/Logger.hpp
@@ -22,7 +22,7 @@
 #define LogInfo(fmt, ...) Limonp::Logger::LoggingF(Limonp::LL_INFO, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__)
 #define LogWarn(fmt, ...) Limonp::Logger::LoggingF(Limonp::LL_WARN, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__)
 #define LogError(fmt, ...) Limonp::Logger::LoggingF(Limonp::LL_ERROR, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__)
-#define LogFatal(fmt, ...) Limonp::Logger::LoggingF(Limonp::LL_FATAL, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__)
+#define LogFatal(fmt, ...) {Limonp::Logger::LoggingF(Limonp::LL_FATAL, FILE_BASENAME, __LINE__, fmt, ## __VA_ARGS__); abort();}
 
 namespace Limonp {
 using namespace std;