/usr/lib/python3/dist-packages/glances/logs.py is in glances 2.11.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 | # -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2017 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Manage logs."""
import time
from datetime import datetime
from glances.compat import range
from glances.processes import glances_processes, sort_stats
class GlancesLogs(object):
"""This class manages logs inside the Glances software.
Logs is a list of list (stored in the self.logs_list var)
item_state = "OK|CAREFUL|WARNING|CRITICAL"
item_type = "CPU*|LOAD|MEM|MON"
item_value = value
Item is defined by:
["begin",
"end",
"WARNING|CRITICAL",
"CPU|LOAD|MEM",
MAX, AVG, MIN, SUM, COUNT,
[top3 process list],
"Processes description",
"top sort key"]
"""
def __init__(self):
"""Init the logs class."""
# Maximum size of the logs list
self.logs_max = 10
# Init the logs list
self.logs_list = []
def get(self):
"""Return the raw logs list."""
return self.logs_list
def len(self):
"""Return the number of item in the logs list."""
return self.logs_list.__len__()
def __itemexist__(self, item_type):
"""Return the item position, if it exists.
An item exist in the list if:
* end is < 0
* item_type is matching
Return -1 if the item is not found.
"""
for i in range(self.len()):
if self.logs_list[i][1] < 0 and self.logs_list[i][3] == item_type:
return i
return -1
def get_process_sort_key(self, item_type):
"""Return the process sort key"""
# Process sort depending on alert type
if item_type.startswith("MEM"):
# Sort TOP process by memory_percent
ret = 'memory_percent'
elif item_type.startswith("CPU_IOWAIT"):
# Sort TOP process by io_counters (only for Linux OS)
ret = 'io_counters'
else:
# Default sort is...
ret = 'cpu_percent'
return ret
def set_process_sort(self, item_type):
"""Define the process auto sort key from the alert type."""
glances_processes.auto_sort = True
glances_processes.sort_key = self.get_process_sort_key(item_type)
def reset_process_sort(self):
"""Reset the process auto sort key."""
# Default sort is...
glances_processes.auto_sort = True
glances_processes.sort_key = 'cpu_percent'
def add(self, item_state, item_type, item_value,
proc_list=None, proc_desc="", peak_time=6):
"""Add a new item to the logs list.
If 'item' is a 'new one', add the new item at the beginning of
the logs list.
If 'item' is not a 'new one', update the existing item.
If event < peak_time the the alert is not setoff.
"""
proc_list = proc_list or glances_processes.getalllist()
# Add or update the log
item_index = self.__itemexist__(item_type)
if item_index < 0:
# Item did not exist, add if WARNING or CRITICAL
self._create_item(item_state, item_type, item_value,
proc_list, proc_desc, peak_time)
else:
# Item exist, update
self._update_item(item_index, item_state, item_type, item_value,
proc_list, proc_desc, peak_time)
return self.len()
def _create_item(self, item_state, item_type, item_value,
proc_list, proc_desc, peak_time):
"""Create a new item in the log list"""
if item_state == "WARNING" or item_state == "CRITICAL":
# Define the automatic process sort key
self.set_process_sort(item_type)
# Create the new log item
# Time is stored in Epoch format
# Epoch -> DMYHMS = datetime.fromtimestamp(epoch)
item = [
time.mktime(datetime.now().timetuple()), # START DATE
-1, # END DATE
item_state, # STATE: WARNING|CRITICAL
item_type, # TYPE: CPU, LOAD, MEM...
item_value, # MAX
item_value, # AVG
item_value, # MIN
item_value, # SUM
1, # COUNT
[], # TOP 3 PROCESS LIST
proc_desc, # MONITORED PROCESSES DESC
glances_processes.sort_key] # TOP PROCESS SORTKEY
# Add the item to the list
self.logs_list.insert(0, item)
if self.len() > self.logs_max:
self.logs_list.pop()
return True
else:
return False
def _update_item(self, item_index, item_state, item_type, item_value,
proc_list, proc_desc, peak_time):
"""Update a item in the log list"""
if item_state == "OK" or item_state == "CAREFUL":
# Reset the automatic process sort key
self.reset_process_sort()
endtime = time.mktime(datetime.now().timetuple())
if endtime - self.logs_list[item_index][0] > peak_time:
# If event is > peak_time seconds
self.logs_list[item_index][1] = endtime
else:
# If event <= peak_time seconds, ignore
self.logs_list.remove(self.logs_list[item_index])
else:
# Update the item
# State
if item_state == "CRITICAL":
self.logs_list[item_index][2] = item_state
# Value
if item_value > self.logs_list[item_index][4]:
# MAX
self.logs_list[item_index][4] = item_value
elif item_value < self.logs_list[item_index][6]:
# MIN
self.logs_list[item_index][6] = item_value
# AVG (compute average value)
self.logs_list[item_index][7] += item_value
self.logs_list[item_index][8] += 1
self.logs_list[item_index][5] = (self.logs_list[item_index][7] /
self.logs_list[item_index][8])
# TOP PROCESS LIST (only for CRITICAL ALERT)
if item_state == "CRITICAL":
# Sort the current process list to retreive the TOP 3 processes
self.logs_list[item_index][9] = sort_stats(proc_list, glances_processes.sort_key)[0:3]
self.logs_list[item_index][11] = glances_processes.sort_key
# MONITORED PROCESSES DESC
self.logs_list[item_index][10] = proc_desc
return True
def clean(self, critical=False):
"""Clean the logs list by deleting finished items.
By default, only delete WARNING message.
If critical = True, also delete CRITICAL message.
"""
# Create a new clean list
clean_logs_list = []
while self.len() > 0:
item = self.logs_list.pop()
if item[1] < 0 or (not critical and item[2].startswith("CRITICAL")):
clean_logs_list.insert(0, item)
# The list is now the clean one
self.logs_list = clean_logs_list
return self.len()
glances_logs = GlancesLogs()
|