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Type:
Bug
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: 3.4.4, 3.5.7
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Component/s: Internal Code
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None
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Fully Compatible
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ALL
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v3.4
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Platforms 2017-05-29
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0
After creating a user on 3.2, running getIndexes shows indexes created on admin.system.users.
> db.system.users.getIndexes()
[ ]
> db.createUser({user: "sajack", pwd: "sajack", roles: []})
Successfully added user: { "user" : "sajack", "roles" : [ ] }
> db.system.users.getIndexes()
[
{
"v" : 1,
"key" : {
"_id" : 1
},
"name" : "_id_",
"ns" : "admin.system.users"
},
{
"v" : 1,
"unique" : true,
"key" : {
"user" : 1,
"db" : 1
},
"name" : "user_1_db_1",
"ns" : "admin.system.users"
}
]
Performing the same operation on 3.4 does not result in an index being created:
> use admin
switched to db admin
> db.createUser({user: "sajack", pwd: "sajack", roles: []})
Successfully added user: { "user" : "sajack", "roles" : [ ] }
> db.system.users.getIndexes()
[
{
"v" : 2,
"key" : {
"_id" : 1
},
"name" : "_id_",
"ns" : "admin.system.users"
}
]
This could cause authentication to be slow.
This seems to be caused in auth_index_d.cpp. This call requires the index version be explicitly set to 2:
collection->getIndexCatalog()->createIndexOnEmptyCollection(
opCtx,
BSON("name" << v3SystemUsersIndexName << "ns" << collection->ns().ns() << "key"
<< v3SystemUsersKeyPattern
<< "unique"
<< true));
- related to
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- Closed
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- Closed
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