When I try to run this on my MongoDB:
db.createCollection("mycol", { capped : true, autoIndexID : true, size : 6142800, max : 10000 } )
I get this:
{
"ok" : 0,
"errmsg" : "The field 'autoIndexID' is not a valid collection option. Options: { capped: true, autoIndexID: true, size: 6142800.0, max: 10000.0 }",
"code" : 72,
"codeName" : "InvalidOptions"
}
I just don't get it... Sorry if it's dumb. :/
autoIndexId option has been removed in 3.4 and was already deprecated in 3.2
From mongo doc and https://jira.mongodb.org/browse/SERVER-19067:
Deprecated since version 3.2: The autoIndexId option will be removed in version 3.4.
Also, for capped collection :
Capped collections have an _id field and an index on the _id field by default.
The correct option is autoIndexId , you had put autoIndexID .
You can also use the option --convertLegacyIndexes (you'll need to use a fairly new version of mongorestore though).
That has been working for me for dumps made from mongodb v2.6