comon.py

   1 #
   2 # Copyright (c) 2004  The Trustees of Princeton University (Trustees).
   3 #
   4 # Faiyaz Ahmed <faiyaza@cs.princeton.edu>
   5 #
   6 # $Id: comon.py,v 1.5 2007/05/16 01:53:46 faiyaza Exp $
   7 #
   8 # Get CoMon data, unsorted, in CSV, and create a huge hash.
   9 #
  10
  11
  12 import urllib2
  13 import httplib
  14 import time
  15 import Queue
  16 import logging
  17 import pickle
  18 from threading import *
  19 #httplib.HTTPConnection.debuglevel = 1
  20
  21 logger = logging.getLogger("monitor")
  22
  23 # Time between comon refresh
  24 COSLEEP=1200
  25
  26 # CoMon
  27 COMONURL = "http://summer.cs.princeton.edu/status/tabulator.cgi?table=table_nodeview"
  28
  29 # node type:
  30 # null == <not in DB?>
  31 #        0 ==
  32 #        1 == Prod
  33 #        2 == alpha
  34 #        3 == beta
  35
  36 # boot state:
  37 #       0 == new
  38 #       1 == boot
  39 #       2 == dbg
  40 #       3 == rins
  41 #       4 == ins
  42
  43
  44 class Comon(Thread):
  45         """
  46         cdb is the comon database (dictionary)
  47         all buckets is a queue of all problem nodes. This gets sent to rt to find
  48         tickets open for host.
  49         """
  50         def __init__(self, cdb, d_allplc_nodes, q_allbuckets):
  51                 self.codata = cdb
  52                 self.d_allplc_nodes = d_allplc_nodes
  53                 self.updated = time.time()
  54                 self.q_allbuckets = q_allbuckets
  55                 #self.comon_buckets = {"down" : "resptime%20==%200%20&&%20keyok==null",
  56                 #       "ssh": "sshstatus%20%3E%202h",
  57                 #       "clock_drift": "drift%20%3E%201m",
  58                 #       "dns": "dns1udp%20%3E%2080%20&&%20dns2udp%20%3E%2080",
  59                 #       "filerw": "filerw%3E0",
  60                 #       "dbg" : "keyok==0"}
  61                 self.comon_buckets = {
  62                         #"down" : "resptime==0 && keyok==null",
  63                         #"ssh": "sshstatus > 2h",
  64                         #"clock_drift": "drift > 1m",
  65                         #"dns": "dns1udp>80 && dns2udp>80",
  66                         #"filerw": "filerw > 0",
  67                         "dbg" : "keyok==0"
  68                         }
  69                 Thread.__init__(self)
  70
  71         def __tohash(self,rawdata):
  72                 # First line Comon returns is list of keys with respect to index
  73                 keys = rawdata.readline().rstrip().split(", ")
  74                 l_host = []
  75                 hash = {}
  76                 try:
  77                         i_ignored = 0
  78                         for line in rawdata.readlines():
  79                                 l_host = line.rstrip().split(", ")              # split the line on ', '
  80                                 hostname = l_host[0]
  81                                 if hostname in self.d_allplc_nodes:             # then we'll track it
  82                                         hash[hostname] = {}
  83                                         for i in range(1,len(keys)):
  84                                                 hash[hostname][keys[i]]=l_host[i]
  85                                 else:
  86                                         i_ignored += 1
  87
  88                         print "Retrieved %s hosts" % len(hash.keys())
  89                         print "Ignoring %d hosts" % i_ignored
  90
  91                         logger.debug("Retrieved %s hosts" % len(hash.keys()))
  92                         logger.debug("Ignoring %d hosts" % i_ignored)
  93                 except Exception, err:
  94                         logger.debug("No hosts retrieved")
  95                         return {}
  96                 return hash
  97
  98         # Update individual buckekts.  Hostnames only.
  99         def updatebuckets(self):
 100                 for (bucket,url) in self.comon_buckets.items():
 101                         logger.debug("COMON:  Updating bucket %s" % bucket)
 102                         tmp = self.coget(COMONURL + "&format=formatcsv&select='" + url + "'").keys()
 103                         setattr(self, bucket, tmp)
 104
 105         # Update ALL node information
 106         def updatedb(self):
 107                 # Get time of update
 108                 self.updated = time.time()
 109                 # Make a Hash, put in self.
 110                 self.codata.update(self.coget(COMONURL + "&format=formatcsv"))
 111
 112         def coget(self,url):
 113                 rawdata = None
 114                 print "Getting: %s" % url
 115                 try:
 116                         coserv = urllib2.Request(url)
 117                         coserv.add_header('User-Agent',
 118                                 'PL_Monitor +http://monitor.planet-lab.org/')
 119                         opener = urllib2.build_opener()
 120                         # Initial web get from summer.cs in CSV
 121                         rawdata = opener.open(coserv)
 122                 except urllib2.URLError, (err):
 123                         print "Attempting %s" %COMONURL
 124                         print "URL error (%s)" % (err)
 125                         rawdata = None
 126                 return self.__tohash(rawdata)
 127
 128         # Push nodes that are bad (in *a* bucket) into q(q_allbuckets)
 129         def push(self):
 130                 #buckets_per_node = []
 131                 #for bucket in self.comon.comon_buckets.keys():
 132                 #       if (hostname in getattr(self.comon, bucket)):
 133                 #               buckets_per_node.append(bucket)
 134
 135                 #loginbase = self.plcdb_hn2lb[hostname] # plc.siteId(node)
 136
 137                 #if not loginbase in self.sickdb:
 138                 #       self.sickdb[loginbase] = [{hostname: buckets_per_node}]
 139                 #else:
 140                 #       self.sickdb[loginbase].append({hostname: buckets_per_node})
 141
 142
 143                 print "calling Comon.push()"
 144                 for bucket in self.comon_buckets.keys():
 145                         #print "bucket: %s" % bucket
 146                         for host in getattr(self,bucket):
 147                                 diag_node = {}
 148                                 diag_node['nodename'] = host
 149                                 diag_node['message'] = None
 150                                 diag_node['bucket'] = [bucket]
 151                                 diag_node['stage'] = ""
 152                                 diag_node['args'] = None
 153                                 diag_node['info'] = None
 154                                 diag_node['time'] = time.time()
 155                                 #print "host: %s" % host
 156                                 self.q_allbuckets.put(diag_node)
 157
 158         def run(self):
 159                 self.updatedb()
 160                 self.updatebuckets()
 161                 self.push()
 162                 # insert signal that this is the final host
 163                 self.q_allbuckets.put("None")
 164
 165         def __repr__(self):
 166             return self
 167
 168 def main():
 169         logger.setLevel(logging.DEBUG)
 170         ch = logging.StreamHandler()
 171         ch.setLevel(logging.DEBUG)
 172         formatter = logging.Formatter('%(message)s')
 173         ch.setFormatter(formatter)
 174         logger.addHandler(ch)
 175
 176
 177         t = Queue.Queue()
 178         cdb = {}
 179         a = Comon(cdb,t)
 180         #for i in a.comon_buckets: print "%s : %s" % ( i, a.comon_buckets[i])
 181         a.start()
 182
 183         time.sleep(5)
 184         #for i in a.down: print i
 185
 186         time.sleep(5)
 187         #print cdb
 188         for host in cdb.keys():
 189                 #if cdb[host]['keyok'] == "0":
 190                 # null implies that it may not be in PL DB.
 191                 if  cdb[host]['bootstate'] != "null" and \
 192                         cdb[host]['bootstate'] == "2" and \
 193                         cdb[host]['keyok'] == "0":
 194                         print("%-40s \t Bootstate %s nodetype %s kernver %s keyok %s" % (
 195                                 host, cdb[host]['bootstate'], cdb[host]['nodetype'],
 196                                 cdb[host]['kernver'], cdb[host]['keyok']))
 197                         #ssh = soltesz.SSH('root', host)
 198                         #try:
 199                         #       val = ssh.run("uname -r")
 200                         #       print "%s == %s" % (host, val),
 201                         #except:
 202                         #       pass
 203         #       else:
 204         #               print("key mismatch at: %s" % host)
 205         #print a.codata['michelangelo.ani.univie.ac.at']
 206         #time.sleep(3)
 207         #a.push()
 208         #print a.filerw
 209         #print a.coget(COMONURL + "&format=formatcsv&select='" + a.comon_buckets['filerw'])
 210
 211         #os._exit(0)
 212 if __name__ == '__main__':
 213         import os
 214         try:
 215                 main()
 216         except KeyboardInterrupt:
 217                 print "Killed.  Exitting."
 218                 logger.info('Monitor Killed')
 219                 os._exit(0)