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### Author: <lefred$inuits,be>
global mysql_user
mysql_user = os.getenv('DSTAT_MYSQL_USER') or os.getenv('USER')
global mysql_pwd
mysql_pwd = os.getenv('DSTAT_MYSQL_PWD')
class dstat_plugin(dstat):
"""
Plugin for MySQL 5 I/O.
"""
def __init__(self):
self.name = 'mysql5 io'
self.nick = ('recv', 'sent')
self.vars = ('Bytes_received', 'Bytes_sent')
def check(self):
global MySQLdb
import MySQLdb
try:
self.db = MySQLdb.connect(user=mysql_user, passwd=mysql_pwd)
except:
raise Exception, 'Cannot interface with MySQL server'
def extract(self):
try:
c = self.db.cursor()
c.execute("""show global status like 'Bytes_%';""")
lines = c.fetchall()
for line in lines:
if len(line[1]) < 2: continue
if line[0] in self.vars:
self.set2[line[0]] = float(line[1])
for name in self.vars:
self.val[name] = self.set2[name] * 1.0 / elapsed
if step == op.delay:
self.set1.update(self.set2)
except Exception, e:
for name in self.vars:
self.val[name] = -1
# vim:ts=4:sw=4:et