mongodb TTL不删除文档

Posted 2023-03-10

??????mongodb TTL?????

??????:mongodb TTL not removing documents

??????:2013-09-14 16:24:57

??????:

?????????,??:

    _id: String,      // auto generated
    key: String,      // there is a unique index on this field
    timestamp: Date() // set to current time

???????? TTL ??:

db.sess.ensureIndex(  "timestamp": 1 ,  expireAfterSeconds: 3600  )

??????? 1 ??????,?????????? ??????????,??? TTLMonitor ????:

Tue Sep 10 10:42:37.081 [TTLMonitor] TTL:  timestamp: 1.0   timestamp:  $lt: new Date(1378823557081)  
Tue Sep 10 10:42:37.081 [TTLMonitor] TTL deleted: 0

??????????,??????????????:

db.sess.find( timestamp:  $lt: new Date(1378823557081) )

...

?????????????

?? - ???????

 "_id" : "3971446b45e640fdb30ebb3d58663807", "key" : "6XTHYKG7XBTQE9MJH8", "timestamp" : ISODate("2013-09-09T18:54:28Z") 

??????:

?????1?:

??????: ????????????:

    "v" : 1,
    "key" : 
        "columnName" : 1,
        "expireAfterSeconds" : 172800
    ,
    "name" : "columnName_1_expireAfterSeconds_172800",
    "ns" : "dbName.collectionName"

??????????:(expireAfterSeconds ?***??)

    "v" : 1,
    "key" : 
        "columnName" : 1
    ,
    "expireAfterSeconds" : 172800,
    "name" : "columnName_1_expireAfterSeconds_172800",
    "ns" : "dbName.collectionName"

????:

?????2?:

?????????????????????

“??”??????????????:

??:TTL ???????????????????? MongoDB ?????????????????????

????????????

????:

TTLMonitor ? 60 ?????,?????????????? 1 ????????????????(??,?????,????????)??? 2 ???——?????????? TTL ????????????????????????

?,????????db.sess.find().pretty() ??????——????????????????????????????,?????db.sess.getIndexes() ???????????

db.sess.getIndexes() ?????????????????db['system.indexes'].find(expireAfterSeconds: $ne: null)——??????????????????,??system.indexes ?????????????????????!

????? Node.js mongoose,????????????????????????,?????????????

@huggie ????????????????