python如何實現(xiàn)統(tǒng)計osd-pg并導出到csv,針對這個問題,這篇文章詳細介紹了相對應(yīng)的分析和解答,希望可以幫助更多想解決這個問題的小伙伴找到更簡單易行的方法。
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分析當前集群各個OSD的pg分布情況
import json from collections import OrderedDict import csv import subprocess def get_pg_dump(): cmd = "ceph pg dump --format=json" out = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE) result = out.stdout.readlines()[1].split('\n')[0] return result csv_file = './demo.csv' #生成的csv文件路徑 pg_data = json.loads(get_pg_dump()) pg_dict = {} osd_pg_dict = {} for i in pg_data: for j in pg_data['pg_stats']: pg_dict[j['pgid']] = j['up'] pool_pg_total = {} osd_pg_num_dict = {} tmp_pool_list = {} tmp_osd_list = {} start_osd = 0 start_pool_id = 0 all_result = {} for i in pg_dict: pool_id = int(i.split('.')[0]) for osd_id in pg_dict[i]: tmp_pool_list[pool_id] = pool_id tmp_osd_list[osd_id] = osd_id num_pool = max(tmp_pool_list.iterkeys(), key=lambda k: tmp_pool_list[k]) + 1 num_osd = max(tmp_osd_list.iterkeys(), key=lambda k: tmp_osd_list[k]) + 1 pool_totol_pg = [0] * num_pool max_osd_list = [0] * num_pool min_osd_list = [999] * num_pool max_osdid_list = ['No_OSD'] * num_pool min_osdid_list = ['No_OSD'] * num_pool ave_osd_list = [0] * num_pool ave_osd_list_result = [0] * num_pool min_osd_per_list = [0] * num_pool max_osd_per_list = [0] * num_pool for i in range(0,num_osd): keyname = str(i) all_result[keyname] = [0] * num_pool for i in pg_dict: pool_id = int(i.split('.')[0]) for osd_id in pg_dict[i]: tmp_keyname = str(osd_id) tmp_list = all_result[tmp_keyname] tmp_list[pool_id] = tmp_list[pool_id] +1 for i in all_result: tmp_num = 0 for j in all_result[i]: if j < min_osd_list[tmp_num] and j != 0: min_osd_list[tmp_num] = j min_osdid_list[tmp_num] = i if j > max_osd_list[tmp_num]: max_osd_list[tmp_num] = j max_osdid_list[tmp_num] = i if j != 0: ave_osd_list[tmp_num] = ave_osd_list[tmp_num] + 1 pool_totol_pg[tmp_num] = pool_totol_pg[tmp_num] + j tmp_num = tmp_num + 1 for i in range(0,len(ave_osd_list)): if ave_osd_list[i] != 0: ave_osd_list_result[i] = pool_totol_pg[i]/ave_osd_list[i] all_result = OrderedDict(sorted(all_result.items(), key=lambda t: int(t[0]))) for i in range(0,num_pool): if max_osd_list[i] != 0: max_osd_per_list[i] = round(100*(max_osd_list[i]-ave_osd_list_result[i])/float(ave_osd_list_result[i]),2) for i in range(0, num_pool): if min_osd_list[i] != 999: min_osd_per_list[i] = round(100 * (min_osd_list[i] - ave_osd_list_result[i])/float(ave_osd_list_result[i]),2) with open(csv_file, 'w') as csvfile: pool_list = [] for i in range(0,num_pool): pool_list.append('pool-'+str(i)) fieldnames = ['osd_name'] + pool_list + ['total'] writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() for i in all_result: tmp_dict = {'osd_name': i,'total':sum(all_result[i])} tmp_num = 0 for j in all_result[i]: keyname = 'pool-' + str(tmp_num) tmp_num = tmp_num + 1 tmp_dict[keyname] = j writer.writerow(tmp_dict) fieldnames = ['SUM'] + pool_totol_pg + [sum(pool_totol_pg)] writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() fieldnames = ['AVE'] + ave_osd_list_result + [sum(ave_osd_list_result)] writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() fieldnames = ['MAX'] + max_osd_list + [sum(max_osd_list)] writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() fieldnames = ['MAX-OSD-ID'] + max_osdid_list writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() fieldnames = ['MAX-PER'] + max_osd_per_list + [sum(max_osd_per_list)] writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() fieldnames = ['MIN'] + min_osd_list + [sum(min_osd_list)] writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() fieldnames = ['MIN-OSD-ID'] + min_osdid_list writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() fieldnames = ['MIN-PER'] + min_osd_per_list + [sum(min_osd_per_list)] writer = csv.DictWriter(csvfile, fieldnames=fieldnames) writer.writeheader() print '---------------------------------------------------------------------------' for i in all_result: print i,all_result[i],sum(all_result[i]) print '---------------------------------------------------------------------------' print 'SUM',pool_totol_pg print 'MAX',max_osd_list print 'MIN-OSD-ID',max_osdid_list print 'MIN',min_osd_list print 'MIN-OSD-ID',min_osdid_list print 'AVE',ave_osd_list_result print 'MIN-PER',min_osd_per_list print 'MAX-PER',max_osd_per_list
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