def _parse_section(section_name, current_process, current_thread, maps, stats,
data):
if section_name == 'meminfo':
parse_meminfo(maps, data)
elif section_name == 'loadavg':
parse_loadavg(stats, data)
elif section_name == 'uptime':
parse_uptime(stats, data)
elif section_name == 'vmstat':
parse_vmstat(stats, data)
elif current_thread and section_name == 'stat':
parse_stat(current_thread, data)
elif current_process and section_name != '':
# Hit a new file, consolidate what we have so far.
if 'smaps' == section_name:
_save_smaps_region(current_process.maps, maps, current_process.pid,
data)
elif 'cmdline' == section_name:
# Some command lines have a number of empty arguments. Ignore
# that because it's not interesting here.
current_process.argv = filter(len, data.strip().split('\0'))
elif 'stat' == section_name:
parse_stat(current_process, data)
else:
LOGGER.error('Unrecognised section name: %s' % section_name)
def _parse_section(section_name, current_process, current_thread, data, out):
try:
parser = parsers.get_parser(section_name)
parser.parse(data, out)
except:
pass
if current_thread and section_name == 'stat':
_save_stat(current_thread, out['stat'])
elif current_process and section_name != '':
# Hit a new file, consolidate what we have so far.
if 'smaps' == section_name:
_save_smaps_region(current_process.maps, out['meminfo'],
current_process.pid, data)
elif 'cmdline' == section_name:
# Some command lines have a number of empty arguments. Ignore
# that because it's not interesting here.
current_process.argv = filter(len, data.strip().split('\0'))
elif 'stat' == section_name:
_save_stat(current_process, out['stat'])
else:
LOGGER.error('Unrecognised section name: %s' % section_name)
def read_stats(args):
# This is the command to grab all of the necessary info.
# Note that -v is passed to tail - this is so we always the filename
# given to us, which is needed for parsing.
# As processes can be transient, we can get errors here about
# non-existent files, so ignore them, this is expected.
cmd = 'nice tail -v -n +1 '\
'/proc/%s/{cmdline,smaps} '\
'/proc/meminfo '\
'/proc/loadavg '\
'/proc/uptime '\
'/proc/vmstat '\
'2>/dev/null; ' \
'nice find /proc/%s -type f -name stat '\
'-exec tail -v -n +1 {} \; 2>/dev/null | '\
'awk \''\
'/==>/ {print} '\
'/^[0-9]/ {print \$2, \$10, \$12, \$14, \$15, \$22}\';'
# Accept a space-separated list of pids as that is what pidof(8) returns and
# it's quite likely you'll want to invoke this script with something like:
#
# --pid "`pidof foobar`"
#
# at some point.
if args.pid.isdigit() or args.pid == '*':
pids = args.pid
else:
pids = '{%s}' % args.pid.replace(' ', ',')
# root can see all of /proc, another user is likely not going to be able
# to read all of it. This isn't a hard error, but won't give a full view
# of the system.
if (args.host == '' and getpass.getuser() != "root") or\
(args.host != '' and args.user != 'root'):
LOGGER.warning("If not running as root you may not see all info.")
if args.host == '':
LOGGER.info('Loading local procfs files')
cmd = "bash -c \"%s\"" % (cmd % (pids, pids))
elif args.host != '':
ssh = (
"ssh %s@%s"
" -o UserKnownHostsFile=/dev/null"
" -o StrictHostKeyChecking=no"
" -o LogLevel=error"
% (args.user, args.host)
)
if args.password:
ssh = "sshpass -p %s %s" % (args.password, ssh)
else:
ssh = "%s -o PasswordAuthentication=no" % ssh
cmd = """%s "%s" """ % (ssh, cmd % (pids, pids))
LOGGER.info('Reading procfs with cmd: %s' % cmd)
p = Popen(cmd, shell=True, bufsize=-1, stdout=PIPE, stderr=PIPE)
stats = read_tailed_files(p.stdout)
if p.poll() != 0:
LOGGER.error("Command failed with: %r" % p.stderr.read().strip())
sys.exit(1)
return stats
