# # # Summary: heartBeat.py sends a ping to each of the chunkservers in the # # host.txt file. If the chunkserver responds, it adds it to an # # activehosts file, so all responsive chunkserver addresses are # # stored in one location. If the chunkserver does not respond, # # heartBeat.py makes sure it is removed from the activehosts list # # # ################################################################################# import socket, time, os, config, logging, sys, listener import functionLibrary as fL #import debugging fL.debug() ############################################################################### # Define heartBeat Object # ############################################################################### # Define a heartBeat object which will be used to ping the chunkservers and add those that # respond to an activehosts log, while removing those that do not respond from the # activehosts log
# The listenerConfig contains the name of the log that will store all
# errors, the number of items per line, which will determine how many
# items are stored on each line (such as, if this number is set at 60,
# the history of the CPU (and every part) will go back 60 items into its
# past.) The delayTime will determine how often (in seconds) the program
# will run through, and files is a list of every file that is supposed to
# be in the folder in which the listener is running.
#
#
###############################################################################
import psutil, time, sys, logging, os, re, listenerConfig
import functionLibrary as fL
# import debugging
fL.debug()
##########################
# V A R I A B L E S #
##########################
# The time that the program waits before running again is given in an argument.
delayTime = listenerConfig.delayTime
# name of the log in which all of the information about the system (such as the
# CPU and memory) is stored
logName = listenerConfig.logName
logging.debug("Name of listen log: " + logName)