当我运行一个运行大约50个线程的多线程程序,并且在每个线程中都有数据库操作时,mongodb运行速度太慢,然后服务将被停止。在 Mongodb 日志中,我看到此消息:
2017-12-13T09:24:50.226+0330 I COMMAND [ftdc] serverStatus was very slow: { after basic: 71, after asserts: 307, after backgroundFlushing: 358, after connections: 622, after dur: 653, after extra_info: 915, after globalLock: 977, after locks: 998, after network: 1008, after opLatencies: 1008, after opcounters: 1008, after opcountersRepl: 1008, after repl: 1030, after security: 1030, after storageEngine: 1061, after tcmalloc: 1293, after wiredTiger: 1627, at end: 2498 }
这是我的线程代码:
def processor(*data):
for item in data[0]:
try:
col_articles_data.update({'_id': item['id']}, {'$set': {'processed': True}})
except:
Debug.PrintException()
我该怎么办?
最佳答案
这表明您的 mongodb 需要的 RAM 比您预配的要多。我可以想到两种解决问题的方法:
更多信息请阅读:https://groups.google.com/g/mongodb-user/c/Y-B_XShEquE
关于python - MongoDB - serverStatus 非常慢,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47786567/