diff --git a/TODO.MD b/TODO.MD
index 82e852f79..a94dd76e7 100644
--- a/TODO.MD
+++ b/TODO.MD
@@ -40,9 +40,9 @@
     - https://github.com/namreg/godown
     - https://github.com/Masterminds/sprig
 1. gform参考 https://gohouse.github.io/gorose/dist/index.html 进行改进
-1. 模板引擎增加对象的支持(参考https://segmentfault.com/q/1010000016829214)；
-
-
+1. 模板引擎增加对对象的支持(参考https://segmentfault.com/q/1010000016829214)；
+1. 由于系统对inotify实例数量(`fs.inotify.max_user_instances`)以及队列大小(`fs.inotify.max_user_watches`)有限制，需要改进`gfsnotify`；
+1. 改进gfpool在文件指针变化时的更新；
 
 
 # DONE
diff --git a/g/os/gfile/gfile_contents.go b/g/os/gfile/gfile_contents.go
index bca02e2c6..87738a114 100644
--- a/g/os/gfile/gfile_contents.go
+++ b/g/os/gfile/gfile_contents.go
@@ -7,7 +7,6 @@
 package gfile
 
 import (
-    "gitee.com/johng/gf/g/os/gfpool"
     "io"
     "io/ioutil"
     "os"
@@ -35,7 +34,7 @@ func GetBinContents(path string) []byte {
 }
 
 // 写入文件内容
-func putContents(path string, data []byte, flag int, perm os.FileMode) error {
+func putContents(path string, data []byte, flag int, perm int) error {
     // 支持目录递归创建
     dir := Dir(path)
     if !Exists(dir) {
@@ -43,8 +42,8 @@ func putContents(path string, data []byte, flag int, perm os.FileMode) error {
             return err
         }
     }
-    // 创建/打开文件，使用文件指针池，默认60秒
-    f, err := gfpool.OpenFile(path, flag, perm, gFILE_POOL_EXPIRE*1000)
+    // 创建/打开文件
+    f, err := OpenWithFlagPerm(path, flag, perm)
     if err != nil {
         return err
     }
@@ -103,11 +102,11 @@ func GetNextCharOffset(file *os.File, char byte, start int64) int64 {
 
 // 获得文件内容下一个指定字节的位置
 func GetNextCharOffsetByPath(path string, char byte, start int64) int64 {
-    if f, err := gfpool.Open(path, os.O_RDONLY, gDEFAULT_PERM, gFILE_POOL_EXPIRE*1000); err == nil {
+    if f, err := OpenWithFlagPerm(path, os.O_RDONLY, gDEFAULT_PERM); err == nil {
         defer f.Close()
-        return GetNextCharOffset(&f.File, char, start)
+        return GetNextCharOffset(f, char, start)
     } else {
-        // panic(err)
+        panic(err)
     }
     return -1
 }
@@ -122,11 +121,11 @@ func GetBinContentsTilChar(file *os.File, char byte, start int64) ([]byte, int64
 
 // 获得文件内容直到下一个指定字节的位置(返回值包含该位置字符内容)
 func GetBinContentsTilCharByPath(path string, char byte, start int64) ([]byte, int64) {
-    if f, err := gfpool.Open(path, os.O_RDONLY, gDEFAULT_PERM, gFILE_POOL_EXPIRE*1000); err == nil {
+    if f, err := OpenWithFlagPerm(path, os.O_RDONLY, gDEFAULT_PERM); err == nil {
         defer f.Close()
-        return GetBinContentsTilChar(&f.File, char, start)
+        return GetBinContentsTilChar(f, char, start)
     } else {
-        // panic(err)
+        panic(err)
     }
     return nil, -1
 }
@@ -142,11 +141,11 @@ func GetBinContentsByTwoOffsets(file *os.File, start int64, end int64) []byte {
 
 // 获得文件内容中两个offset之间的内容 [start, end)
 func GetBinContentsByTwoOffsetsByPath(path string, start int64, end int64) []byte {
-    if f, err := gfpool.Open(path, os.O_RDONLY, gDEFAULT_PERM, gFILE_POOL_EXPIRE*1000); err == nil {
+    if f, err := OpenWithFlagPerm(path, os.O_RDONLY, gDEFAULT_PERM); err == nil {
         defer f.Close()
-        return GetBinContentsByTwoOffsets(&f.File, start, end)
+        return GetBinContentsByTwoOffsets(f, start, end)
     } else {
-        // panic(err)
+        panic(err)
     }
     return nil
 }
\ No newline at end of file
diff --git a/g/os/gfpool/gfpool.go b/g/os/gfpool/gfpool.go
index 143c902ce..2f1544f2a 100644
--- a/g/os/gfpool/gfpool.go
+++ b/g/os/gfpool/gfpool.go
@@ -42,24 +42,32 @@ type File struct {
 var pools = gmap.NewStringInterfaceMap()
 
 // 获得文件对象，并自动创建指针池(过期时间单位：毫秒)
-func Open(path string, flag int, perm os.FileMode, expire...int) (*File, error) {
+func Open(path string, flag int, perm os.FileMode, expire...int) (file *File, err error) {
     fpExpire := 0
     if len(expire) > 0 {
         fpExpire = expire[0]
     }
     pool := pools.GetOrSetFuncLock(fmt.Sprintf("%s&%d&%d&%d", path, flag, expire, perm), func() interface{} {
-        return New(path, flag, perm, fpExpire)
+        if p, e := New(path, flag, perm, fpExpire); e == nil {
+            return p
+        } else {
+            err = e
+        }
+        return nil
     }).(*Pool)
+    if pool == nil {
+        return nil, err
+    }
     return pool.File()
 }
 
-func OpenFile(path string, flag int, perm os.FileMode, expire...int) (*File, error) {
+func OpenFile(path string, flag int, perm os.FileMode, expire...int) (file *File, err error) {
     return Open(path, flag, perm, expire...)
 }
 
 // 创建一个文件指针池，expire = 0表示不过期，expire < 0表示使用完立即回收，expire > 0表示超时回收，默认值为0不过期
 // 过期时间单位：毫秒
-func New(path string, flag int, perm os.FileMode, expire...int) *Pool {
+func New(path string, flag int, perm os.FileMode, expire...int) (*Pool, error) {
     fpExpire := 0
     if len(expire) > 0 {
         fpExpire = expire[0]
@@ -74,9 +82,9 @@ func New(path string, flag int, perm os.FileMode, expire...int) *Pool {
     if watcher, err := fsnotify.NewWatcher(); err == nil {
         p.watcher = watcher
     } else {
-        return nil
+        return nil, err
     }
-    return p
+    return p, nil
 }
 
 // 创建文件指针池
diff --git a/g/os/glog/glog_logger.go b/g/os/glog/glog_logger.go
index fce9a5a18..66e3fce16 100644
--- a/g/os/glog/glog_logger.go
+++ b/g/os/glog/glog_logger.go
@@ -8,19 +8,18 @@
 package glog
 
 import (
-    "os"
-    "io"
-    "time"
     "fmt"
-    "strings"
-    "runtime"
-    "gitee.com/johng/gf/g/os/gfile"
-    "gitee.com/johng/gf/g/util/gregex"
     "gitee.com/johng/gf/g/container/gtype"
+    "gitee.com/johng/gf/g/os/gfile"
     "gitee.com/johng/gf/g/os/gmlock"
-    "gitee.com/johng/gf/g/os/gfpool"
-    "sync"
     "gitee.com/johng/gf/g/os/gtime"
+    "gitee.com/johng/gf/g/util/gregex"
+    "io"
+    "os"
+    "runtime"
+    "strings"
+    "sync"
+    "time"
 )
 
 type Logger struct {
@@ -128,14 +127,14 @@ func (l *Logger) GetWriter() io.Writer {
 }
 
 // 获取默认的文件IO
-func (l *Logger) getFilePointer() *gfpool.File {
+func (l *Logger) getFilePointer() *os.File {
     if path := l.path.Val(); path != "" {
         // 文件名称中使用"{}"包含的内容使用gtime格式化
         file, _ := gregex.ReplaceStringFunc(`{.+?}`, l.file.Val(), func(s string) string {
             return gtime.Now().Format(strings.Trim(s, "{}"))
         })
         fpath   := path + gfile.Separator + file
-        if fp, err := gfpool.Open(fpath, gDEFAULT_FILE_POOL_FLAGS, 0666); err == nil {
+        if fp, err := gfile.OpenWithFlagPerm(fpath, gDEFAULT_FILE_POOL_FLAGS, 0666); err == nil {
             return fp
         } else {
             fmt.Fprintln(os.Stderr, err)
@@ -249,20 +248,20 @@ func (l *Logger) GetBacktrace(skip...int) string {
     from      := 0
     // 首先定位业务文件开始位置
     for i := 0; i < 10; i++ {
-        if _, cfile, _, ok := runtime.Caller(i); ok {
-            if !gregex.IsMatchString("/g/os/glog/glog.+$", cfile) {
+        if _, file, _, ok := runtime.Caller(i); ok {
+            if !gregex.IsMatchString("/g/os/glog/glog.+$", file) {
                 from = i
                 break
             }
         }
     }
     // 从业务文件开始位置根据自定义的skip开始backtrace
-    goroot := runtime.GOROOT()
+    goRoot := runtime.GOROOT()
     for i := from + customSkip + l.btSkip.Val(); i < 10000; i++ {
-        if _, cfile, cline, ok := runtime.Caller(i); ok && cfile != "" {
+        if _, file, cline, ok := runtime.Caller(i); ok && file != "" {
             // 不打印出go源码路径及glog包文件路径，日志打印必须从业务源码文件开始，且从glog包文件开始检索
-            if (goroot == "" || !gregex.IsMatchString("^" + goroot, cfile)) && !gregex.IsMatchString(`<autogenerated>`, cfile) {
-                backtrace += fmt.Sprintf(`%d. %s:%d%s`, index, cfile, cline, ln)
+            if (goRoot == "" || !gregex.IsMatchString("^" + goRoot, file)) && !gregex.IsMatchString(`<autogenerated>`, file) {
+                backtrace += fmt.Sprintf(`%d. %s:%d%s`, index, file, cline, ln)
                 index++
             }
         } else {
diff --git a/geg/other/test.go b/geg/other/test.go
index d14d8b912..31222b2fa 100644
--- a/geg/other/test.go
+++ b/geg/other/test.go
@@ -1,21 +1,17 @@
 package main
 
 import (
-    "html/template"
-    "log"
-    "os"
+    "fmt"
+    "gitee.com/johng/gf/g/os/gtime"
+    "gitee.com/johng/gf/third/github.com/fsnotify/fsnotify"
 )
 
-type Person string
-
-func (p Person) Label() string {
-    return "This is " + string(p)
-}
-
 func main() {
-    tmpl, err := template.New("").Parse(`{{sum 1 2 3}}`)
-    if err != nil {
-        log.Fatalf("Parse: %v", err)
+    if w, err := fsnotify.NewWatcher(); err != nil {
+        fmt.Println(err)
+    } else {
+        fmt.Println(gtime.Now().String())
+        w.Add("/tmp/test")
     }
-    tmpl.Execute(os.Stdout, nil)
+
 }
\ No newline at end of file
diff --git a/geg/other/test2.go b/geg/other/test2.go
index cc4c3f73b..eac8f2d78 100644
--- a/geg/other/test2.go
+++ b/geg/other/test2.go
@@ -1,12 +1,11 @@
 package main
 
 import (
-    "fmt"
-    "gitee.com/johng/gf/g/util/gregex"
+    "gitee.com/johng/gf/g/container/garray"
 )
 
 func main() {
-    s := `[0-9][0-9]/Jan/[0-9][0-9][0-9][0-9]:[0-9][0-9]:[0-9][0-9]:[0-9][0-9] \+[0-9][0-9][0-9][0-9]`
-    s,_  = gregex.ReplaceString(`[A-Za-z]`, `[A-Za-z]`, s)
-    fmt.Println(s)
+    a := garray.NewSortedIntArray(0)
+    a.Add(1)
+    a.Remove(0)
 }
\ No newline at end of file