has $isolated been removed from MongoDB 4.0 or current pymongo version?










0















I have been using $isolated to write lock during deleting multiple docs from a collection in MongoDB 3.4 using pymongo.
But since I upgraded to MongoDb 4.0 , I get below error :



pymongo.errors.WriteError: unknown top level operator: $isolated


and I and using below pymongo query :



items = db[colname].remove("date":"$lt":todaydatevariable,"$isolated": 1)


Is there any alternative to $isolated I can use for write concern?










share|improve this question






















  • Pretty sure it was actually gone from MongoDB 3.6, though I can't seem to find a reference other than the documentation disappears at that version release. $isolated was really a "brute force" method of forcing write locks and really should not have been used except in extreme cases. If you're using MongoDB 4.0 then you have either MMAPv2 or WiredTiger storage, and the usage more or less becomes irrelevant. So you probably should have removed things like this from code some time ago really. You don't need it.

    – Neil Lunn
    Nov 15 '18 at 5:45
















0















I have been using $isolated to write lock during deleting multiple docs from a collection in MongoDB 3.4 using pymongo.
But since I upgraded to MongoDb 4.0 , I get below error :



pymongo.errors.WriteError: unknown top level operator: $isolated


and I and using below pymongo query :



items = db[colname].remove("date":"$lt":todaydatevariable,"$isolated": 1)


Is there any alternative to $isolated I can use for write concern?










share|improve this question






















  • Pretty sure it was actually gone from MongoDB 3.6, though I can't seem to find a reference other than the documentation disappears at that version release. $isolated was really a "brute force" method of forcing write locks and really should not have been used except in extreme cases. If you're using MongoDB 4.0 then you have either MMAPv2 or WiredTiger storage, and the usage more or less becomes irrelevant. So you probably should have removed things like this from code some time ago really. You don't need it.

    – Neil Lunn
    Nov 15 '18 at 5:45














0












0








0








I have been using $isolated to write lock during deleting multiple docs from a collection in MongoDB 3.4 using pymongo.
But since I upgraded to MongoDb 4.0 , I get below error :



pymongo.errors.WriteError: unknown top level operator: $isolated


and I and using below pymongo query :



items = db[colname].remove("date":"$lt":todaydatevariable,"$isolated": 1)


Is there any alternative to $isolated I can use for write concern?










share|improve this question














I have been using $isolated to write lock during deleting multiple docs from a collection in MongoDB 3.4 using pymongo.
But since I upgraded to MongoDb 4.0 , I get below error :



pymongo.errors.WriteError: unknown top level operator: $isolated


and I and using below pymongo query :



items = db[colname].remove("date":"$lt":todaydatevariable,"$isolated": 1)


Is there any alternative to $isolated I can use for write concern?







mongodb pymongo






share|improve this question













share|improve this question











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share|improve this question










asked Nov 15 '18 at 5:17









cartman619cartman619

1809




1809












  • Pretty sure it was actually gone from MongoDB 3.6, though I can't seem to find a reference other than the documentation disappears at that version release. $isolated was really a "brute force" method of forcing write locks and really should not have been used except in extreme cases. If you're using MongoDB 4.0 then you have either MMAPv2 or WiredTiger storage, and the usage more or less becomes irrelevant. So you probably should have removed things like this from code some time ago really. You don't need it.

    – Neil Lunn
    Nov 15 '18 at 5:45


















  • Pretty sure it was actually gone from MongoDB 3.6, though I can't seem to find a reference other than the documentation disappears at that version release. $isolated was really a "brute force" method of forcing write locks and really should not have been used except in extreme cases. If you're using MongoDB 4.0 then you have either MMAPv2 or WiredTiger storage, and the usage more or less becomes irrelevant. So you probably should have removed things like this from code some time ago really. You don't need it.

    – Neil Lunn
    Nov 15 '18 at 5:45

















Pretty sure it was actually gone from MongoDB 3.6, though I can't seem to find a reference other than the documentation disappears at that version release. $isolated was really a "brute force" method of forcing write locks and really should not have been used except in extreme cases. If you're using MongoDB 4.0 then you have either MMAPv2 or WiredTiger storage, and the usage more or less becomes irrelevant. So you probably should have removed things like this from code some time ago really. You don't need it.

– Neil Lunn
Nov 15 '18 at 5:45






Pretty sure it was actually gone from MongoDB 3.6, though I can't seem to find a reference other than the documentation disappears at that version release. $isolated was really a "brute force" method of forcing write locks and really should not have been used except in extreme cases. If you're using MongoDB 4.0 then you have either MMAPv2 or WiredTiger storage, and the usage more or less becomes irrelevant. So you probably should have removed things like this from code some time ago really. You don't need it.

– Neil Lunn
Nov 15 '18 at 5:45













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