log: handle discard all logfiles properly (#6945)
* Handle discard all logfiles properly Fixes https://github.com/hashicorp/consul/issues/6892. The [docs](https://www.consul.io/docs/agent/options.html#_log_rotate_max_files) are stating: > -log-rotate-max-files - to specify the maximum number of older log > file archives to keep. Defaults to 0 (no files are ever deleted). Set to > -1 to disable rotation and discard all log files. But the `-1` case was not implemented and led to a panic when being used. Co-Authored-By: Freddy <freddygv@users.noreply.github.com>
This commit is contained in:
parent
396e636572
commit
1bf94b01e2
|
@ -62,10 +62,11 @@ func (l *LogFile) fileNamePattern() string {
|
|||
|
||||
func (l *LogFile) openNew() error {
|
||||
fileNamePattern := l.fileNamePattern()
|
||||
// New file name has the format : filename-timestamp.extension
|
||||
|
||||
createTime := now()
|
||||
newfileName := fmt.Sprintf(fileNamePattern, strconv.FormatInt(createTime.UnixNano(), 10))
|
||||
newfilePath := filepath.Join(l.logPath, newfileName)
|
||||
|
||||
// Try creating a file. We truncate the file because we are the only authority to write the logs
|
||||
filePointer, err := os.OpenFile(newfilePath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0640)
|
||||
if err != nil {
|
||||
|
@ -104,8 +105,14 @@ func (l *LogFile) pruneFiles() error {
|
|||
if err != nil {
|
||||
return err
|
||||
}
|
||||
// Prune if there are more files stored than the configured max
|
||||
stale := len(matches) - l.MaxFiles
|
||||
var stale int
|
||||
if l.MaxFiles <= -1 {
|
||||
// Prune everything
|
||||
stale = len(matches)
|
||||
} else {
|
||||
// Prune if there are more files stored than the configured max
|
||||
stale = len(matches) - l.MaxFiles
|
||||
}
|
||||
for i := 0; i < stale; i++ {
|
||||
if err := os.Remove(matches[i]); err != nil {
|
||||
return err
|
||||
|
@ -123,7 +130,7 @@ func (l *LogFile) Write(b []byte) (n int, err error) {
|
|||
|
||||
l.acquire.Lock()
|
||||
defer l.acquire.Unlock()
|
||||
//Create a new file if we have no file to write to
|
||||
// Create a new file if we have no file to write to
|
||||
if l.FileInfo == nil {
|
||||
if err := l.openNew(); err != nil {
|
||||
return 0, err
|
||||
|
|
|
@ -136,7 +136,7 @@ func TestLogFile_deleteArchives(t *testing.T) {
|
|||
|
||||
func TestLogFile_deleteArchivesDisabled(t *testing.T) {
|
||||
t.Parallel()
|
||||
tempDir := testutil.TempDir(t, "LogWriteDeleteArchivesDisabled")
|
||||
tempDir := testutil.TempDir(t, t.Name())
|
||||
defer os.Remove(tempDir)
|
||||
filt := LevelFilter()
|
||||
filt.MinLevel = logutils.LogLevel("INFO")
|
||||
|
@ -158,3 +158,28 @@ func TestLogFile_deleteArchivesDisabled(t *testing.T) {
|
|||
return
|
||||
}
|
||||
}
|
||||
|
||||
func TestLogFile_rotationDisabled(t *testing.T) {
|
||||
t.Parallel()
|
||||
tempDir := testutil.TempDir(t, t.Name())
|
||||
defer os.Remove(tempDir)
|
||||
filt := LevelFilter()
|
||||
filt.MinLevel = logutils.LogLevel("INFO")
|
||||
logFile := LogFile{
|
||||
logFilter: filt,
|
||||
fileName: testFileName,
|
||||
logPath: tempDir,
|
||||
MaxBytes: testBytes,
|
||||
duration: 24 * time.Hour,
|
||||
MaxFiles: -1,
|
||||
}
|
||||
logFile.Write([]byte("[INFO] Hello World"))
|
||||
logFile.Write([]byte("[INFO] Second File"))
|
||||
logFile.Write([]byte("[INFO] Third File"))
|
||||
want := 1
|
||||
tempFiles, _ := ioutil.ReadDir(tempDir)
|
||||
if got := tempFiles; len(got) != want {
|
||||
t.Errorf("Expected %d files, got %v file(s)", want, len(got))
|
||||
return
|
||||
}
|
||||
}
|
||||
|
|
|
@ -283,7 +283,7 @@ The options below are all specified on the command-line.
|
|||
|
||||
* <a name="_log_rotate_duration"></a><a href="#_log_rotate_duration">`-log-rotate-duration`</a> - to specify the maximum duration a log should be written to before it needs to be rotated. Must be a duration value such as 30s. Defaults to 24h.
|
||||
|
||||
* <a name="_log_rotate_max_files"></a><a href="#_log_rotate_max_files">`-log-rotate-max-files`</a> - to specify the maximum number of older log file archives to keep. Defaults to 0 (no files are ever deleted). Set to -1 to disable rotation and discard all log files.
|
||||
* <a name="_log_rotate_max_files"></a><a href="#_log_rotate_max_files">`-log-rotate-max-files`</a> - to specify the maximum number of older log file archives to keep. Defaults to 0 (no files are ever deleted). Set to -1 to discard old log files when a new one is created.
|
||||
|
||||
* <a name="_join"></a><a href="#_join">`-join`</a> - Address of another agent
|
||||
to join upon starting up. This can be
|
||||
|
|
Loading…
Reference in New Issue