-#
-# Copyright (c) 2004 The Trustees of Princeton University (Trustees).
-#
-# Faiyaz Ahmed <faiyaza@cs.princeton.edu>
-#
-# $Id: policy.py,v 1.4 2006/11/14 19:20:13 faiyaza Exp $
-#
-# Policy Engine.
-
-#from monitor import *
-from threading import *
+#!/usr/bin/python
+
+# This script is used to manipulate the operational state of nodes in
+# different node groups. These are basically set operations on nodes via the
+# PLC api.
+#
+# Take the ng name as an argument....
+# optionally,
+# * get a list of nodes in the given nodegroup.
+# * set some or all in the set to rins.
+# * restart them all.
+# * do something else to them all.
+#
+
+import os
import time
-import logging
-import mailer
-import emailTxt
-import pickle
-import Queue
-import plc
-import reboot
-import config
-
-DAT="./monitor.dat"
-
-logger = logging.getLogger("monitor")
-
-# Time to enforce policy
-POLSLEEP = 7200
-
-# Where to email the summary
-SUMTO = "pupadm@lists.planet-lab.org"
-TECHEMAIL="tech-%s@sites.planet-lab.org"
-PIEMAIL="pi-%s@sites.planet-lab.org"
-SLICEMAIL="%s@slices.planet-lab.org"
-PLCEMAIL="support@planet-lab.org"
-
-#Thresholds (DAYS)
-SPERDAY = 86400
-PITHRESH = 1 * SPERDAY
-SLICETHRESH = 5 * SPERDAY
-# Days before attempting rins again
-RINSTHRESH = 5 * SPERDAY
-
-# Minimum number of nodes up before squeezing
-MINUP = 2
-
-# IF:
-# no SSH, down.
-# bad disk, down
-# DNS, kinda down (sick)
-# clock, kinda down (sick)
-# Full disk, going to be down
-
-# Actions:
-# Email
-# suspend slice creation
-# kill slices
-class Policy(Thread):
- def __init__(self, comonthread, sickNoTicket, emailed):
- self.cmn = comonthread
- # host - > (time of email, type of email)
- self.emailed = emailed
- # all sick nodes w/o tickets
- self.sickNoTicket = sickNoTicket
- # Sitess we've Squeezed.
- self.squeezed = {}
- Thread.__init__(self)
-
+import traceback
+import sys
+from optparse import OptionParser
- '''
- What to do when node is in dbg (as reported by CoMon).
- '''
- def __actOnDebug(self, node):
- # Check to see if we've done this before
- if (node in self.emailed.keys()):
- if (self.emailed[node][0] == "dbg"):
- delta = time.time() - self.emailed[node][1]
- if (delta <= RINSTHRESH ):
- # Don't mess with node if under Thresh.
- # Return, move on.
- logger.info("POLICY: %s in dbg, but acted on %s days ago" % (node, delta // SPERDAY))
- return
- logger.info("POLICY: Node in dbg - " + node)
- plc.nodeBootState(node, "rins")
- # If it has a PCU
- return reboot.reboot(node)
-
- '''
- What to do when node is in dbg (as reported by CoMon).
- '''
- def __actOnFilerw(self, node):
- target = [PLCEMAIL]
- logger.info("POLICY: Emailing PLC for " + node)
- tmp = emailTxt.mailtxt.filerw
- sbj = tmp[0] % {'hostname': node}
- msg = tmp[1] % {'hostname': node}
- mailer.email(sbj, msg, target)
- self.emailed[node] = ("filerw", time.time())
-
-
- '''
- Acts on sick nodes.
- '''
- def actOnSick(self):
- # Get list of nodes in debug from PLC
- #dbgNodes = NodesDebug()
- global TECHEMAIL, PIEMAIL
- # Grab a node from the queue (pushed by rt thread).
- node = self.sickNoTicket.get(block = True)
- # Get the login base
- loginbase = plc.siteId(node)
-
- # Send appropriate message for node if in appropriate bucket.
- # If we know where to send a message
- if not loginbase:
- logger.info("POLICY: loginbase for %s not found" %node)
- # And we didn't email already.
- else:
- # If first email, send to Tech
- target = [TECHEMAIL % loginbase]
-
- # If disk is foobarred, PLC should check it.
- if (node in self.cmn.filerw) and \
- (node not in self.emailed.keys()):
- self.__actOnFilerw(node)
- return
-
- # If in dbg, set to rins, then reboot. Inform PLC.
- if (node in self.cmn.dbg):
- # If reboot failure via PCU, POD and send email
- # if contacted PCU, return
- if self.__actOnDebug(node): return
-
- if (node in self.emailed.keys()) and \
- (node not in self.cmn.filerw) and \
- (node not in self.cmn.clock_drift):
- # If we emailed before, how long ago?
- delta = time.time() - self.emailed[node][1]
- if delta < SPERDAY:
- logger.info("POLICY: already acted on %s today." % node)
- return
-
- logger.info("POLICY: acted %s on %s days ago" % (node,
- delta // SPERDAY))
-
- # If more than PI thresh, but less than slicethresh
- if (delta >= PITHRESH) and (delta < SLICETHRESH):
- target.append(PIEMAIL % loginbase)
- #remove slice creation if enough nodes arent up
- if not self.enoughUp(loginbase):
- slices = plc.slices(loginbase)
- if len(slices) >= 1:
- for slice in slices:
- target.append(SLICEMAIL % slice)
- logger.info("POLICY: Removing slice creation from %s" % loginbase)
- tmp = emailTxt.mailtxt.removedSliceCreation
- sbj = tmp[0]
- msg = tmp[1] % {'loginbase': loginbase}
- plc.removeSliceCreation(node)
- mailer.email(sbj, msg, target)
- self.squeezed[loginbase] = (time.time(), "creation")
- return
-
- # If more than PI thresh and slicethresh
- if (delta >= PITHRESH) and (delta > SLICETHRESH):
- target.append(PIEMAIL % loginbase)
- # Email slices at site.
- slices = plc.slices(loginbase)
- if len(slices) >= 1:
- for slice in slices:
- target.append(SLICEMAIL % slice)
- # If not enough up, freeze slices and email everyone.
- if not self.enoughUp(loginbase):
- logger.info("POLICY: Suspending %s slices." % loginbase)
- tmp = emailTxt.mailtxt.suspendSlices
- sbj = tmp[0]
- msg = tmp[1] % {'loginbase': loginbase}
- plc.suspendSlices(node)
- self.squeezed[loginbase] = (time.time(), "freeze")
- mailer.email(sbj, msg, target)
- return
-
- # Find the bucket the node is in and send appropriate email
- # to approriate list of people.
- for bkt in self.cmn.comonbkts.keys():
- if (node in getattr(self.cmn, bkt)):
- # Send predefined message for that bucket.
- logger.info("POLICY: Emailing (%s) %s - %s"\
- %(bkt, node, target))
- tmp = getattr(emailTxt.mailtxt, bkt)
- sbj = tmp[0] % {'hostname': node}
- msg = tmp[1] % {'hostname': node}
- mailer.email(sbj, msg, target)
- self.emailed[node] = (bkt , time.time())
- return
-
-
- '''
- Prints, logs, and emails status of up nodes, down nodes, and buckets.
- '''
- def status(self):
- sub = "Monitor Summary"
- msg = "\nThe following nodes were acted upon: \n\n"
- for (node, (type, date)) in self.emailed.items():
- # Print only things acted on today.
- if (time.gmtime(time.time())[2] == time.gmtime(date)[2]):
- msg +="%s\t(%s)\t%s\n" %(node, type, time.ctime(date))
- msg +="\n\nThe following sites have been 'squeezed':\n\n"
- for (loginbase, (date, type)) in self.squeezed.items():
- # Print only things acted on today.
- if (time.gmtime(time.time())[2] == time.gmtime(date)[2]):
- msg +="%s\t(%s)\t%s\n" %(loginbase, type, time.ctime(date))
- mailer.email(sub, msg, [SUMTO])
- logger.info(msg)
- return
-
- '''
- Store/Load state of emails. When, where, what.
- '''
- def emailedStore(self, action):
+from monitor import config
+from monitor import parser as parsermodule
+from monitor.common import *
+from monitor.model import *
+from monitor.wrapper import plc
+from monitor.wrapper import plccache
+from monitor.database.info.model import *
+from monitor.database.info.interface import *
+
+from nodequery import verify,query_to_dict,node_select
+
+api = plc.getAuthAPI()
+
+def logic():
+
+ plc.nodeBootState(host, 'reinstall')
+ node_end_record(host)
+
+def main(hostnames, sitenames):
+ # commands:
+ i = 1
+ node_count = 1
+ site_count = 1
+ #print "hosts: %s" % hostnames
+ for i,host in enumerate(hostnames):
try:
- if action == "LOAD":
- f = open(DAT, "r+")
- logger.info("POLICY: Found and reading " + DAT)
- self.emailed.update(pickle.load(f))
- if action == "WRITE":
- f = open(DAT, "w")
- #logger.debug("Writing " + DAT)
- pickle.dump(self.emailed, f)
- f.close()
- except Exception, err:
- logger.info("POLICY: Problem with DAT, %s" %err)
-
- '''
- Returns True if more than MINUP nodes are up at a site.
- '''
- def enoughUp(self, loginbase):
- allsitenodes = plc.getSiteNodes(loginbase)
- if len(allsitenodes) == 0:
- logger.info("Node not in db")
- return
-
- numnodes = len(allsitenodes)
- sicknodes = []
- # Get all sick nodes from comon
- for bucket in self.cmn.comonbkts.keys():
- for host in getattr(self.cmn, bucket):
- sicknodes.append(host)
- # Diff.
- for node in allsitenodes:
- if node in sicknodes:
- numnodes -= 1
-
- if numnodes < MINUP:
- logger.info(\
-"POLICY: site with %s has nodes %s up." %(loginbase, numnodes))
- return False
- else:
- return True
-
-
-
-
- def run(self):
- while 1:
- self.actOnSick()
- self.emailedStore("WRITE")
-
-
-def main():
- logger.setLevel(logging.DEBUG)
- ch = logging.StreamHandler()
- ch.setLevel(logging.DEBUG)
- formatter = logging.Formatter('%(message)s')
- ch.setFormatter(formatter)
- logger.addHandler(ch)
-
- #print NodesDebug()
- #tmp = Queue.Queue()
- #a = Policy(None, tmp)
- #a.emailedStore("LOAD")
- #print a.emailed
-
- print plc.slices(plc.siteId("alice.cs.princeton.edu"))
- os._exit(0)
-if __name__ == '__main__':
- import os
- import plc
+ lb = plccache.plcdb_hn2lb[host]
+ except:
+ print "unknown host in plcdb_hn2lb %s" % host
+ email_exception(host)
+ continue
+
+ nodeblack = BlacklistRecord.get_by(hostname=host)
+
+ if nodeblack and not nodeblack.expired():
+ print "skipping %s due to blacklist. will expire %s" % (host, nodeblack.willExpire() )
+ continue
+
+ sitehist = SiteInterface.get_or_make(loginbase=lb)
+
+ recent_actions = sitehist.getRecentActions(hostname=host)
+
+ nodehist = HistoryNodeRecord.findby_or_create(hostname=host)
+
+ print "%s %s %s" % (i, nodehist.hostname, nodehist.status)
+ if nodehist.status == 'good' and \
+ changed_lessthan(nodehist.last_changed, 1.0) and \
+ found_within(recent_actions, 'down_notice', 7.0) and \
+ not found_within(recent_actions, 'online_notice', 0.5):
+ # NOTE: chronicly flapping nodes will not get 'online' notices
+ # since, they are never up long enough to be 'good'.
+ # NOTE: searching for down_notice proves that the node has
+ # gone through a 'down' state first, rather than just
+ # flapping through: good, offline, online, ...
+ #
+ # NOTE: there is a narrow window in which this command must be
+ # evaluated, otherwise the notice will not go out.
+ # this is not ideal.
+ sitehist.sendMessage('online_notice', hostname=host, viart=False, saveact=True)
+ print "send message for host %s online" % host
+
+
+ # if a node is offline and doesn't have a PCU, remind the user that they should have one.
+ #if not nodehist.haspcu and nodehist.status in ['offline', 'down'] and \
+ # changed_greaterthan(nodehist.last_changed,1.0) and \
+ # not found_within(recent_actions, 'pcumissing_notice', 7.0):
+ #
+ # sitehist.sendMessage('pcumissing_notice', hostname=host)
+ # print "send message for host %s pcumissing_notice" % host
+
+ # if it is offline and HAS a PCU, then try to use it.
+ if nodehist.haspcu and nodehist.status in ['offline', 'down'] and \
+ changed_greaterthan(nodehist.last_changed,1.0) and \
+ not nodehist.firewall and \
+ not found_between(recent_actions, 'try_reboot', 3.5, 1):
+
+ # TODO: there MUST be a better way to do this...
+ # get fb node record for pcuid
+ fbpcu = None
+ fbnode = FindbadNodeRecord.get_latest_by(hostname=host)
+ if fbnode:
+ fbpcu = FindbadPCURecord.get_latest_by(plc_pcuid=fbnode.plc_pcuid)
+
+ sitehist.attemptReboot(host)
+ print "send message for host %s try_reboot" % host
+ if not fbpcu.test_is_ok() and \
+ not found_within(recent_actions, 'pcuerror_notice', 3.0):
+
+ args = {}
+ if fbpcu:
+ args['pcu_name'] = fbpcu.pcu_name()
+ args['pcu_errors'] = fbpcu.pcu_errors()
+ else:
+ args['pcu_name'] = "error looking up pcu name"
+ args['pcu_errors'] = ""
+
+ args['hostname'] = host
+ sitehist.sendMessage('pcuerror_notice', **args)
+ print "send message for host %s PCU Failure" % host
+
+
+ # NOTE: non-intuitive is that found_between(try_reboot, 3.5, 1)
+ # will be false for a day after the above condition is satisfied
+ if nodehist.haspcu and nodehist.status in ['offline', 'down'] and \
+ changed_greaterthan(nodehist.last_changed,1.5) and \
+ not nodehist.firewall and \
+ found_between(recent_actions, 'try_reboot', 3.5, 1) and \
+ not found_within(recent_actions, 'pcufailed_notice', 3.5):
+
+ # TODO: there MUST be a better way to do this...
+ # get fb node record for pcuid
+ fbpcu = None
+ fbnode = FindbadNodeRecord.get_latest_by(hostname=host)
+ if fbnode:
+ fbpcu = FindbadPCURecord.get_latest_by(plc_pcuid=fbnode.plc_pcuid)
+ if fbpcu:
+ pcu_name = fbpcu.pcu_name()
+ else:
+ pcu_name = "error looking up pcu name"
+
+ # get fb pcu record for pcuid
+ # send pcu failure message
+ sitehist.sendMessage('pcufailed_notice', hostname=host, pcu_name=pcu_name)
+ print "send message for host %s PCU Failure" % host
+
+ if nodehist.status == 'failboot' and \
+ changed_greaterthan(nodehist.last_changed, 0.25) and \
+ not found_between(recent_actions, 'bootmanager_restore', 0.5, 0):
+ # send down node notice
+ # delay 0.5 days before retrying...
+
+ print "send message for host %s bootmanager_restore" % host
+ sitehist.runBootManager(host)
+ # sitehist.sendMessage('retry_bootman', hostname=host)
+
+ if nodehist.status == 'down' and \
+ changed_greaterthan(nodehist.last_changed, 2):
+ if not nodehist.firewall and not found_within(recent_actions, 'down_notice', 3.5):
+ # send down node notice
+ sitehist.sendMessage('down_notice', hostname=host)
+ print "send message for host %s down" % host
+
+ if nodehist.firewall and not found_within(recent_actions, 'firewall_notice', 3.5):
+ # send down node notice
+ #email_exception(host, "firewall_notice")
+ sitehist.sendMessage('firewall_notice', hostname=host)
+ print "send message for host %s down" % host
+
+ node_count = node_count + 1
+ print "time: ", time.strftime('%Y-%m-%d %H:%M:%S')
+ sys.stdout.flush()
+ session.flush()
+
+ for i,site in enumerate(sitenames):
+ sitehist = SiteInterface.get_or_make(loginbase=site)
+ siteblack = BlacklistRecord.get_by(loginbase=site)
+ skip_due_to_blacklist=False
+
+ if siteblack and not siteblack.expired():
+ print "skipping %s due to blacklist. will expire %s" % (site, siteblack.willExpire() )
+ skip_due_to_blacklist=True
+ sitehist.clearPenalty()
+ sitehist.applyPenalty()
+ continue
+
+ # TODO: make query only return records within a certin time range,
+ # i.e. greater than 0.5 days ago. or 5 days, etc.
+ recent_actions = sitehist.getRecentActions(loginbase=site)
+
+ print "%s %s %s" % (i, sitehist.db.loginbase, sitehist.db.status)
+
+ # determine if there are penalties within the last 30 days?
+ # if so, add a 'pause_penalty' action.
+ if sitehist.db.message_id != 0 and sitehist.db.message_status == 'open' and \
+ sitehist.db.penalty_level > 0 and not found_within(recent_actions, 'pause_penalty', 30):
+ # pause escalation
+ print "Pausing penalties for %s" % site
+ sitehist.pausePenalty()
+ else:
+
+ if sitehist.db.status == 'down':
+ if not found_within(recent_actions, 'pause_penalty', 30) and \
+ not found_within(recent_actions, 'increase_penalty', 7) and \
+ changed_greaterthan(sitehist.db.last_changed, 7):
+
+ # TODO: catch errors
+ sitehist.increasePenalty()
+ sitehist.applyPenalty()
+ sitehist.sendMessage('increase_penalty')
+
+ print "send message for site %s penalty increase" % site
+
+ if sitehist.db.status == 'good':
+ # clear penalty
+ # NOTE: because 'all clear' should have an indefinite status, we
+ # have a boolean value rather than a 'recent action'
+ if sitehist.db.penalty_applied:
+ # send message that penalties are cleared.
+
+ sitehist.clearPenalty()
+ sitehist.applyPenalty()
+ sitehist.sendMessage('clear_penalty')
+ sitehist.closeTicket()
+
+ print "send message for site %s penalty cleared" % site
+
+
+ site_count = site_count + 1
+
+ print "time: ", time.strftime('%Y-%m-%d %H:%M:%S')
+ sys.stdout.flush()
+ session.flush()
+
+ session.flush()
+ return
+
+
+if __name__ == "__main__":
+ parser = parsermodule.getParser(['nodesets'])
+ parser.set_defaults( timewait=0,
+ skip=0,
+ rins=False,
+ reboot=False,
+ findbad=False,
+ force=False,
+ nosetup=False,
+ verbose=False,
+ quiet=False,)
+
+ parser.add_option("", "--stopselect", dest="stopselect", metavar="",
+ help="The select string that must evaluate to true for the node to be considered 'done'")
+ parser.add_option("", "--findbad", dest="findbad", action="store_true",
+ help="Re-run findbad on the nodes we're going to check before acting.")
+ parser.add_option("", "--force", dest="force", action="store_true",
+ help="Force action regardless of previous actions/logs.")
+ parser.add_option("", "--rins", dest="rins", action="store_true",
+ help="Set the boot_state to 'rins' for all nodes.")
+ parser.add_option("", "--reboot", dest="reboot", action="store_true",
+ help="Actively try to reboot the nodes, keeping a log of actions.")
+
+ parser.add_option("", "--verbose", dest="verbose", action="store_true",
+ help="Extra debug output messages.")
+ parser.add_option("", "--nosetup", dest="nosetup", action="store_true",
+ help="Do not perform the orginary setup phase.")
+ parser.add_option("", "--skip", dest="skip",
+ help="Number of machines to skip on the input queue.")
+ parser.add_option("", "--timewait", dest="timewait",
+ help="Minutes to wait between iterations of 10 nodes.")
+
+ parser = parsermodule.getParser(['defaults'], parser)
+ config = parsermodule.parse_args(parser)
+
+ fbquery = HistoryNodeRecord.query.all()
+ hostnames = [ n.hostname for n in fbquery ]
+
+ fbquery = HistorySiteRecord.query.all()
+ sitenames = [ s.loginbase for s in fbquery ]
+
+ if config.site:
+ # TODO: replace with calls to local db. the api fails so often that
+ # these calls should be regarded as unreliable.
+ l_nodes = plccache.GetNodesBySite(config.site)
+ filter_hostnames = [ n['hostname'] for n in l_nodes ]
+
+ hostnames = filter(lambda x: x in filter_hostnames, hostnames)
+ sitenames = [config.site]
+
+ if config.node:
+ hostnames = [ config.node ]
+ sitenames = [ plccache.plcdb_hn2lb[config.node] ]
+
try:
- main()
+ main(hostnames, sitenames)
+ session.flush()
except KeyboardInterrupt:
- print "Killed. Exitting."
- logger.info('Monitor Killed')
- os._exit(0)
+ print "Killed by interrupt"
+ session.flush()
+ sys.exit(0)
+ except:
+ email_exception()
+ print traceback.print_exc();
+ print "fail all..."
git://git.onelab.eu / monitor.git / blobdiff