http://www.tang-lei.com/2018/06/05/ceph-%E7%8A%B6%E6%80%81%E7%9B%91%E6%B5%8B-%E8%84%9A%E6%9C%AC/
为了能够试试获取ceph集群状态，以期发生故障，可以及时知晓，及时处理。这里结合公司使用的owl监控编写的python脚本，如果使用其他或者crontab，可以酌情修改返回格式。
cat ceph_status.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import re
import subprocess
import sys
try:
import simplejson as json
except:
import json
##获取集群状态 HEALTH_ERR、HEALTH_WARN、HEALTH_OK
def get_ceph_status():
p = subprocess.Popen("ceph -s -f json", shell=True,stdout=subprocess.PIPE)
j_data = json.loads(p.stdout.read())
status = j_data.get('health').get('overall_status')
mark = 0 ##正常
if status == 'HEALTH_ERR':
mark = 1
if status == 'HEALTH_WARN':
mark = 2
if status == 'HEALTH_OK':
mark = 0
print {'HEALTH':mark}
return {'HEALTH':mark}
##检查osd使用率
def get_osd_usage():
p = subprocess.Popen("ceph osd df | awk '{print $1,$7}'", shell=True, stdout=subprocess.PIPE)
osds = p.stdout.readlines()
dicts = {}
for o in osds:
array = o.strip().split(" ")
try:
id = int(array[0])
dicts[array[0]]=array[1]
except ValueError:
print "Not number"
j_data = json.dumps(dicts, indent=4)
print j_data
return j_data
##获取osd状态 0表示没有down的osd, 1表示有down
def get_osd_status():
##p = subprocess.Popen("ceph osd tree | awk '{print $4}' |grep down", shell=True, stdout=subprocess.PIPE)
##osds_len = len(p.stdout.read())
##print osds_len
##if osds_len == 0:
## return 0
##else:
## return 1
p = subprocess.Popen("ceph osd stat -f json", shell=True, stdout=subprocess.PIPE)
data = json.loads(p.stdout.read())
if data.get('num_osds') == data.get('num_up_osds') == data.get("num_in_osds"):
print 0
return 0
else:
print 1
return 1
##获取pg状态 0表示 active+clean, 1表示有问题
def get_pg_status():
p = subprocess.Popen("ceph pg stat -f json", shell=True, stdout=subprocess.PIPE)
data = json.loads(p.stdout.read())
if len(data.get("num_pg_by_state")) > 1:
print 1
return 1
else:
print 0
return 0
##获取osd延迟信息
def get_osd_latency():
p = subprocess.Popen("ceph osd perf |awk '{print $1,$3}'", shell=True, stdout=subprocess.PIPE)
return _change_data_format(p)
##数据格式转换
def _change_data_format(p):
osds = p.stdout.readlines()
dicts = {}
for o in osds:
array = o.strip().split(" ")
try:
id = int(array[0])
dicts[array[0]]=array[1]
except ValueError:
print "Not number"
j_data = json.dumps(dicts, indent=4)
print j_data
return j_data
##mon 状态
def get_mon_status():
p = subprocess.Popen("ceph mon_status", shell=True, stdout=subprocess.PIPE)
usage = p.stdout.read()
json_usage = json.loads(usage)
print json_usage
return json_usage
##ceph集群所有磁盘使用率
def get_ceph_disk_usage():
p = subprocess.Popen("ceph df -f json", shell=True, stdout=subprocess.PIPE)
usage = p.stdout.read()
json_usage = json.loads(usage)
print json_usage
return json_usage
if __name__ == '__main__':
inputs = sys.argv[1]
if inputs == '1':
get_ceph_status()
if inputs == '2':
get_osd_usage()
if inputs == '3':
get_osd_status()
if inputs == '4':
get_osd_latency()
if inputs == '5':
get_pg_status()
if inputs == '6':
get_mon_status()
if inputs == '7':
get_ceph_disk_usage()
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