Some usefull methods to review and clear execution plans in MongoDb
MongoDB stats, collections stats
db.stats()
db.<collection>.stats()
Execution plans clearing, needed if an incorrect execution plan appears and you need to refresh them.
db.<collection>.getPlanCache().clear()
Show execution plans by collection or by query
db.<collection>.getPlanCache().listQueryShapes()
db.<collection>.getPlanCache().getPlansByQuery({
"query" : {
"$or" : [
{
"key1" : "value1",
"key2" : "value2"
}
],
"key3" : "value3"
},
"sort" : {},
"projection" : {}
})
