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# -*- coding: utf-8 -*- |
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# |
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# This file is part of Glances. |
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# |
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# Copyright (C) 2015 Nicolargo <[email protected]> |
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# |
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# Glances is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU Lesser General Public License as published by |
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# the Free Software Foundation, either version 3 of the License, or |
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# (at your option) any later version. |
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# |
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# Glances is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU Lesser General Public License for more details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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"""File system plugin.""" |
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import operator |
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from glances.plugins.glances_plugin import GlancesPlugin |
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import psutil |
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# SNMP OID |
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# The snmpd.conf needs to be edited. |
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# Add the following to enable it on all disk |
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# ... |
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# includeAllDisks 10% |
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# ... |
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# The OIDs are as follows (for the first disk) |
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# Path where the disk is mounted: .1.3.6.1.4.1.2021.9.1.2.1 |
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# Path of the device for the partition: .1.3.6.1.4.1.2021.9.1.3.1 |
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# Total size of the disk/partion (kBytes): .1.3.6.1.4.1.2021.9.1.6.1 |
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# Available space on the disk: .1.3.6.1.4.1.2021.9.1.7.1 |
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# Used space on the disk: .1.3.6.1.4.1.2021.9.1.8.1 |
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# Percentage of space used on disk: .1.3.6.1.4.1.2021.9.1.9.1 |
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# Percentage of inodes used on disk: .1.3.6.1.4.1.2021.9.1.10.1 |
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snmp_oid = {'default': {'mnt_point': '1.3.6.1.4.1.2021.9.1.2', |
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'device_name': '1.3.6.1.4.1.2021.9.1.3', |
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'size': '1.3.6.1.4.1.2021.9.1.6', |
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'used': '1.3.6.1.4.1.2021.9.1.8', |
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'percent': '1.3.6.1.4.1.2021.9.1.9'}, |
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'windows': {'mnt_point': '1.3.6.1.2.1.25.2.3.1.3', |
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'alloc_unit': '1.3.6.1.2.1.25.2.3.1.4', |
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'size': '1.3.6.1.2.1.25.2.3.1.5', |
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'used': '1.3.6.1.2.1.25.2.3.1.6'}, |
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'netapp': {'mnt_point': '1.3.6.1.4.1.789.1.5.4.1.2', |
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'device_name': '1.3.6.1.4.1.789.1.5.4.1.10', |
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'size': '1.3.6.1.4.1.789.1.5.4.1.3', |
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'used': '1.3.6.1.4.1.789.1.5.4.1.4', |
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'percent': '1.3.6.1.4.1.789.1.5.4.1.6'}} |
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snmp_oid['esxi'] = snmp_oid['windows'] |
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# Define the history items list |
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# All items in this list will be historised if the --enable-history tag is set |
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# 'color' define the graph color in #RGB format |
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items_history_list = [{'name': 'percent', 'color': '#00FF00'}] |
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class Plugin(GlancesPlugin): |
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"""Glances file system plugin. |
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stats is a list |
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""" |
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def __init__(self, args=None): |
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"""Init the plugin.""" |
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super(Plugin, self).__init__(args=args, items_history_list=items_history_list) |
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# We want to display the stat in the curse interface |
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self.display_curse = True |
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# Init the stats |
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self.reset() |
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def get_key(self): |
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"""Return the key of the list.""" |
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return 'mnt_point' |
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def reset(self): |
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"""Reset/init the stats.""" |
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self.stats = [] |
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@GlancesPlugin._log_result_decorator |
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def update(self): |
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"""Update the FS stats using the input method.""" |
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# Reset the list |
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self.reset() |
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if self.input_method == 'local': |
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# Update stats using the standard system lib |
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# Grab the stats using the PsUtil disk_partitions |
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# If 'all'=False return physical devices only (e.g. hard disks, cd-rom drives, USB keys) |
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# and ignore all others (e.g. memory partitions such as /dev/shm) |
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try: |
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fs_stat = psutil.disk_partitions(all=False) |
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except UnicodeDecodeError: |
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return self.stats |
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# Optionnal hack to allow logicals mounts points (issue #448) |
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# Ex: Had to put 'allow=zfs' in the [fs] section of the conf file |
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# to allow zfs monitoring |
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for fstype in self.get_conf_value('allow'): |
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try: |
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fs_stat += [f for f in psutil.disk_partitions(all=True) if f.fstype.find(fstype) >= 0] |
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except UnicodeDecodeError: |
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return self.stats |
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# Loop over fs |
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for fs in fs_stat: |
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# Do not take hidden file system into account |
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if self.is_hide(fs.mountpoint): |
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continue |
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# Grab the disk usage |
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try: |
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fs_usage = psutil.disk_usage(fs.mountpoint) |
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except OSError: |
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# Correct issue #346 |
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# Disk is ejected during the command |
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continue |
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fs_current = { |
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'device_name': fs.device, |
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'fs_type': fs.fstype, |
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'mnt_point': fs.mountpoint, |
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'size': fs_usage.total, |
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'used': fs_usage.used, |
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'free': fs_usage.free, |
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'percent': fs_usage.percent, |
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'key': self.get_key()} |
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self.stats.append(fs_current) |
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elif self.input_method == 'snmp': |
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# Update stats using SNMP |
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# SNMP bulk command to get all file system in one shot |
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try: |
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fs_stat = self.get_stats_snmp(snmp_oid=snmp_oid[self.short_system_name], |
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bulk=True) |
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except KeyError: |
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fs_stat = self.get_stats_snmp(snmp_oid=snmp_oid['default'], |
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bulk=True) |
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# Loop over fs |
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if self.short_system_name in ('windows', 'esxi'): |
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# Windows or ESXi tips |
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for fs in fs_stat: |
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# Memory stats are grabbed in the same OID table (ignore it) |
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if fs == 'Virtual Memory' or fs == 'Physical Memory' or fs == 'Real Memory': |
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continue |
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size = int(fs_stat[fs]['size']) * int(fs_stat[fs]['alloc_unit']) |
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used = int(fs_stat[fs]['used']) * int(fs_stat[fs]['alloc_unit']) |
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percent = float(used * 100 / size) |
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fs_current = { |
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'device_name': '', |
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'mnt_point': fs.partition(' ')[0], |
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'size': size, |
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'used': used, |
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'percent': percent, |
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'key': self.get_key()} |
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self.stats.append(fs_current) |
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else: |
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# Default behavior |
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for fs in fs_stat: |
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fs_current = { |
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'device_name': fs_stat[fs]['device_name'], |
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'mnt_point': fs, |
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'size': int(fs_stat[fs]['size']) * 1024, |
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'used': int(fs_stat[fs]['used']) * 1024, |
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'percent': float(fs_stat[fs]['percent']), |
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'key': self.get_key()} |
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self.stats.append(fs_current) |
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# Update the history list |
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self.update_stats_history('mnt_point') |
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# Update the view |
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self.update_views() |
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return self.stats |
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def update_views(self): |
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"""Update stats views.""" |
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# Call the father's method |
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super(Plugin, self).update_views() |
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# Add specifics informations |
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# Alert |
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for i in self.stats: |
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self.views[i[self.get_key()]]['used']['decoration'] = self.get_alert( |
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i['used'], maximum=i['size'], header=i['mnt_point']) |
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def msg_curse(self, args=None, max_width=None): |
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"""Return the dict to display in the curse interface.""" |
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# Init the return message |
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ret = [] |
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# Only process if stats exist and display plugin enable... |
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if not self.stats or args.disable_fs: |
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return ret |
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# Max size for the fsname name |
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if max_width is not None and max_width >= 23: |
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# Interface size name = max_width - space for interfaces bitrate |
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fsname_max_width = max_width - 14 |
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else: |
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fsname_max_width = 9 |
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# Build the string message |
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# Header |
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msg = '{0:{width}}'.format('FILE SYS', width=fsname_max_width) |
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ret.append(self.curse_add_line(msg, "TITLE")) |
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if args.fs_free_space: |
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msg = '{0:>7}'.format('Free') |
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else: |
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msg = '{0:>7}'.format('Used') |
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ret.append(self.curse_add_line(msg)) |
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msg = '{0:>7}'.format('Total') |
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ret.append(self.curse_add_line(msg)) |
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# Filesystem list (sorted by name) |
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for i in sorted(self.stats, key=operator.itemgetter(self.get_key())): |
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# New line |
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ret.append(self.curse_new_line()) |
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if i['device_name'] == '' or i['device_name'] == 'none': |
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mnt_point = i['mnt_point'][-fsname_max_width + 1:] |
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elif len(i['mnt_point']) + len(i['device_name'].split('/')[-1]) <= fsname_max_width - 3: |
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# If possible concatenate mode info... Glances touch inside :) |
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mnt_point = i['mnt_point'] + \ |
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' (' + i['device_name'].split('/')[-1] + ')' |
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elif len(i['mnt_point']) > fsname_max_width: |
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# Cut mount point name if it is too long |
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mnt_point = '_' + i['mnt_point'][-fsname_max_width + 1:] |
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else: |
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mnt_point = i['mnt_point'] |
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msg = '{0:{width}}'.format(mnt_point, width=fsname_max_width) |
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ret.append(self.curse_add_line(msg)) |
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if args.fs_free_space: |
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msg = '{0:>7}'.format(self.auto_unit(i['free'])) |
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else: |
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msg = '{0:>7}'.format(self.auto_unit(i['used'])) |
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ret.append(self.curse_add_line(msg, self.get_views(item=i[self.get_key()], |
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key='used', |
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option='decoration'))) |
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msg = '{0:>7}'.format(self.auto_unit(i['size'])) |
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ret.append(self.curse_add_line(msg)) |
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return ret |
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nicolargo /
glances
