重新啓動一個監視器實例

我有那種有一個監視器實例，就像這樣的CherryPy應用：重新啓動一個監視器實例

 mail_checker = Monitor(cherrypy.engine, self.mail_processor.poll_history_feed, frequency=10)

簡單地檢查新郵件Gmail收件箱，並對其進行處理。有時候poll_history_feed（）會拋出一個異常，我現在猜測它是因爲我們的互聯網不穩定，並且在我重新啓動整個應用之前停止運行。（下面的回溯的樣品）

[01/Mar/2016:17:08:29] ENGINE Error in background task thread function <bound method MailProcessor.poll_history_feed of <mailservices.mailprocessor.MailProcessor object at 0x10a2f0250>>. 
Traceback (most recent call last): 
    File "/Users/hashtaginteractive/Projects/.venvs/emaild/lib/python2.7/site-packages/cherrypy/process/plugins.py", line 500, in run 
    self.function(*self.args, **self.kwargs) 
    File "/Users/hashtaginteractive/Projects/emaild/emaild-source/mailservices/mailprocessor.py", line 12, in poll_history_feed 
    labelIds=["INBOX", "UNREAD"] 
    File "/Users/hashtaginteractive/Projects/.venvs/emaild/lib/python2.7/site-packages/oauth2client/util.py", line 142, in positional_wrapper 
    return wrapped(*args, **kwargs) 
    File "/Users/hashtaginteractive/Projects/.venvs/emaild/lib/python2.7/site-packages/googleapiclient/http.py", line 730, in execute 
    return self.postproc(resp, content) 
    File "/Users/hashtaginteractive/Projects/.venvs/emaild/lib/python2.7/site-packages/googleapiclient/model.py", line 207, in response 
    return self.deserialize(content) 
    File "/Users/hashtaginteractive/Projects/.venvs/emaild/lib/python2.7/site-packages/googleapiclient/model.py", line 262, in deserialize 
    content = content.decode('utf-8') 
    File "/Users/hashtaginteractive/Projects/.venvs/emaild/lib/python2.7/encodings/utf_8.py", line 16, in decode 
    return codecs.utf_8_decode(input, errors, True) 
UnicodeDecodeError: 'utf8' codec can't decode byte 0x8b in position 23: invalid start byte

有什麼辦法來設置此，以便它會自動重新啓動服務器或每當發生異常這個特殊的監控實例？

來源

2016-03-01 cornjuliox

您必須在try/except塊中將呼叫打包到self.mail_processor.poll_history_feed，並記錄錯誤以方便使用。

def safe_poll_history_feed(self): 
    try: 
     self.mail_processor.poll_history_feed() 
    except Exception: 
     cherrypy.engine.log("Exception in mailprocessor monitor", traceback=True)

然後使用safe_poll_history_feed方法

來源

2016-03-01 17:04:44 cyraxjoe

重新啓動一個監視器實例

回答

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