nodebad.py

   1 #!/usr/bin/python
   2
   3 import os
   4 import sys
   5 import string
   6 import time
   7
   8
   9 import database
  10 import comon
  11 import threadpool
  12 import syncplcdb
  13 from nodequery import verify,query_to_dict,node_select
  14 from nodecommon import *
  15
  16 import plc
  17 api = plc.getAuthAPI()
  18 from unified_model import *
  19 from const import MINUP
  20
  21 round = 1
  22 externalState = {'round': round, 'nodes': {}}
  23 count = 0
  24
  25 def main(config):
  26         global externalState
  27         externalState = database.if_cached_else(1, config.dbname, lambda : externalState)
  28         if config.increment:
  29                 # update global round number to force refreshes across all nodes
  30                 externalState['round'] += 1
  31
  32         l_nodes = syncplcdb.create_plcdb()
  33         l_plcnodes = database.dbLoad("l_plcnodes")
  34
  35         l_nodes = get_nodeset(config)
  36         #if config.node:
  37         #       l_nodes = [config.node]
  38         ##else:
  39         #       l_nodes = [node['hostname'] for node in l_plcnodes]
  40
  41         checkAndRecordState(l_nodes, l_plcnodes)
  42
  43 def checkAndRecordState(l_nodes, l_plcnodes):
  44         global externalState
  45         global count
  46         global_round = externalState['round']
  47
  48         for nodename in l_nodes:
  49                 if nodename not in externalState['nodes']:
  50                         externalState['nodes'][nodename] = {'round': 0, 'values': []}
  51
  52                 node_round   = externalState['nodes'][nodename]['round']
  53                 if node_round < global_round:
  54                         # do work
  55                         values = collectStatusAndState(nodename, l_plcnodes)
  56                         global_round = externalState['round']
  57                         externalState['nodes'][nodename]['values'] = values
  58                         externalState['nodes'][nodename]['round'] = global_round
  59                 else:
  60                         count += 1
  61
  62                 if count % 20 == 0:
  63                         database.dbDump(config.dbname, externalState)
  64
  65         database.dbDump(config.dbname, externalState)
  66
  67 fb = database.dbLoad('findbad')
  68
  69 def getnodesup(nodelist):
  70         up = 0
  71         for node in nodelist:
  72                 if node['hostname'] in fb['nodes'].keys():
  73                         try:
  74                                 if fb['nodes'][node['hostname']]['values']['state'] == "BOOT":
  75                                         up = up + 1
  76                         except:
  77                                 pass
  78         return up
  79
  80 def get(fb, path):
  81         indexes = path.split("/")
  82         values = fb
  83         for index in indexes:
  84                 if index in values:
  85                         values = values[index]
  86                 else:
  87                         return None
  88         return values
  89
  90 def collectStatusAndState(nodename, l_plcnodes):
  91         global count
  92
  93         d_node = None
  94         for node in l_plcnodes:
  95                 if node['hostname'] == nodename:
  96                         d_node = node
  97                         break
  98         if not d_node:
  99                 return None
 100
 101         pf = PersistFlags(nodename, 1, db='node_persistflags')
 102
 103         if not pf.checkattr('last_changed'):
 104                 pf.last_changed = time.time()
 105
 106         pf.last_checked = time.time()
 107
 108         if not pf.checkattr('status'):
 109                 pf.status = "unknown"
 110
 111         state_path     = "nodes/" + nodename + "/values/state"
 112         bootstate_path = "nodes/" + nodename + "/values/plcnode/boot_state"
 113
 114         if get(fb, state_path) == "BOOT":
 115                 if pf.status != "good": pf.last_changed = time.time()
 116                 pf.status = "good"
 117         elif get(fb, state_path)  == "DEBUG":
 118                 bs = get(fb, bootstate_path)
 119                 if pf.status != bs: pf.last_changed = time.time()
 120                 pf.status = bs
 121         else:
 122                 if pf.status != "down": pf.last_changed = time.time()
 123                 pf.status = "down"
 124
 125         count += 1
 126         print "%d %35s %s since(%s)" % (count, nodename, pf.status, diff_time(pf.last_changed))
 127         # updated by other modules
 128         #pf.enabled =
 129         #pf.suspended =
 130
 131         pf.save()
 132
 133         return True
 134
 135 if __name__ == '__main__':
 136         import parser as parsermodule
 137         parser = parsermodule.getParser(['nodesets'])
 138         parser.set_defaults(filename=None, node=None, nodeselect=False, nodegroup=None,
 139                                                 increment=False, dbname="nodebad", cachenodes=False)
 140
 141         parser.add_option("", "--dbname", dest="dbname", metavar="FILE",
 142                                                 help="Specify the name of the database to which the information is saved")
 143         parser.add_option("-i", "--increment", action="store_true", dest="increment",
 144                                                 help="Increment round number to force refresh or retry")
 145         parser = parsermodule.getParser(['defaults'], parser)
 146         config = parsermodule.parse_args(parser)
 147
 148         try:
 149                 main(config)
 150         except Exception, err:
 151                 import traceback
 152                 print traceback.print_exc()
 153                 print "Exception: %s" % err
 154                 print "Saving data... exitting."
 155                 database.dbDump(config.dbname, externalState)
 156                 sys.exit(0)