python - pxssh exceptions when host is not completely booted -


i error when running script intended monitor tasks in group of servers, script loops among servers connecting via ssh , getting required information. problem sometimes, when 1 of servers tries connect not booted or strange happening , ssh server refuses connection, error stops script. want script omit error , wait next rounds because problem solves in few loops.

this error:

traceback (most recent call last):   file "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 144, in read_nonblocking     s = os.read(self.child_fd, size) oserror: [errno 5] input/output error  during handling of above exception, exception occurred:  traceback (most recent call last):   file "/usr/lib/python3/dist-packages/pexpect/expect.py", line 97, in expect_loop       incoming = spawn.read_nonblocking(spawn.maxread, timeout)   file "/usr/lib/python3/dist-packages/pexpect/pty_spawn.py", line 455, in read_nonblocking     return super(spawn, self).read_nonblocking(size)   file "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 149, in read_nonblocking     raise eof('end of file (eof). exception style platform.') pexpect.exceptions.eof: end of file (eof). exception style platform.  during handling of above exception, exception occurred:  traceback (most recent call last):   file "databasewriter.py", line 280, in <module>     if ping(a) == "online" , requestinfo().login(a) != "pxssh failed on login.":   file "databasewriter.py", line 36, in login     s.login (hostname, username, password)   file "/usr/lib/python3/dist-packages/pexpect/pxssh.py", line 280, in login     = self.expect(["(?i)are sure want continue connecting", original_prompt, "(?i)(?:password)|(?:passphrase key)", "(?i)permission denied", "(?i)terminal type", timeout, "(?i)connection closed remote host"], timeout=login_timeout)   file "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 315, in expect        timeout, searchwindowsize, async)   file "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 339, in expect_list     return exp.expect_loop(timeout)   file "/usr/lib/python3/dist-packages/pexpect/expect.py", line 102, in expect_loop      return self.eof(e)   file "/usr/lib/python3/dist-packages/pexpect/expect.py", line 49, in eof     raise eof(msg) pexpect.exceptions.eof: end of file (eof). exception style platform. <pexpect.pxssh.pxssh object @ 0x7f051c060b00> command: /usr/bin/ssh args: ['/usr/bin/ssh', '-q', '-l', 'user', '192.168.10.14'] searcher: none buffer (last 100 chars): b'' before (last 100 chars): b'' after: <class 'pexpect.exceptions.eof'> match: none match_index: none exitstatus: none flag_eof: true pid: 29625 child_fd: 6 closed: false timeout: 30 delimiter: <class 'pexpect.exceptions.eof'> logfile: none logfile_read: none logfile_send: none maxread: 2000 ignorecase: false searchwindowsize: none delaybeforesend: 0.05 delayafterclose: 0.1 delayafterterminate: 0.1

and relevant functions when error arises:

def ping(hostname):     response = os.system("ping -c 1 " + hostname +" >/dev/null")     if response == 0:         return("online")     else:         return("offline")  def login(self, hostname):     try:         s.login (hostname, username, password)     except pxssh.exceptionpxssh e:         print (str(e))         print("pxssh failed on login.")         return("pxssh failed on login.")  in domains:     print(a)     s = pxssh.pxssh()     if ping(a) == "online" , requestinfo().login(a) != "pxssh failed on login.":        do(things)     else:         print("rig ip "+a+" offline")

hope enough information, don't know why if raises exception, not caught in try, except of login(a) , else statement of loop.

thanks in advance!


Comments

Post a Comment

Popular posts from this blog

javascript - Clear button on addentry page doesn't work -

this addentry blog page have made scratch , there underlying problems code particularly clear button supposed clear text entered when button clicked on doesn't work have saved html file problem. also 1 other problem submit button works doesn't pass of text index file have written php , reason whenever click on submit button redirects me index page without posting entry have made. <!doctype html> <html> <head> <script> function message() { alert("clear form?"); } </script> <style> body {background-color: beige;} h1 {color: black;} p {color: black;} textarea { width: 50%; height: 150px; padding: 12px 20px; box-sizing: border-box; border: 2px solid #ccc; border-radius: 4px; background-color: white; font-size: 16px; resize: none; } div { padding-left: 20px; } </style> </head> <meta charset="utf-8"> <link rel="stylesheet" href=".
Read more

c# - Selenium Authentication Popup preventing driver close or quit -

i have selenium automated task setup login website retrieve information. it's basic in automation. logging in , clicking 2 links. running issue proving problem. the site in question uses authentication required popup not javascript popup rather regular windows auth popup. have read isn't handled out of box selenium. i using " http://username:password@url.com " site every , site has issues on end prompt me again username/password randomly. have enter username/password twice in row when navigating there hand. since task loops continuously few hours picking needed info figured use webdriverwait verify element present on page. if authentication popup appears, element isn't present. no need care run, start over. the problem having when authentication popup displayed , hit timeout limit want close driver/browser window can start task on again. however, driver.close() , driver.quit() not doing anything. browser remains open , unloaded page still there login p
Read more

tensorflow when input_data MNIST_data , zlib.error: Error -3 while decompressing: invalid block type -

i'm geting started tensorflow,followed tutorials,but cannot download mnist data. import tensorflow tf tensorflow.examples.tutorials.mnist import input_data mnist=input_data.read_data_sets("mnist_data/",one_hot=true) print("download done!") error information: extracting mnist_data/train-images-idx3-ubyte.gz traceback (most recent call last): file "/home/sj/program/tesorflow_try.py", line 6, in <module> mnist=input_data.read_data_sets("mnist_data/",one_hot=true) file "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/datasets/mnist.py", line 213, in read_data_sets train_images = extract_images(f) file "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/learn/python/learn/datasets/mnist.py", line 60, in extract_images buf = bytestream.read(rows * cols * num_images) file "/usr/lib/python2.7/gzip.py", line 268, in read self._read(readsize) file
Read more