If you get this in mongo console
db.coll.ensureIndex({'content':'text'})
{
"err" : "text search not enabled",
"code" : 16633,
"n" : 0,
"connectionId" : 1,
"ok" : 1
}
, and this in mongod console
[conn1] insert test.system.indexes keyUpdates:0 exception: text search not enabled code:16633 locks(micros) w:336411 336ms
, you need to enable full text search when starting MongoDB.
mongod --setParameter textSearchEnabled=true
Try again.
db.coll.ensureIndex({'content':'text'})
What's happening in background?
[initandlisten] connection accepted from 127.0.0.1:51347 #1 (1 connection now open)
[conn1] build index test.coll { _fts: "text", _ftsx: 1 }
[conn1] Index: (1/3) External Sort Progress: 3500/6245 56%
[conn1] Index: (1/3) External Sort Progress: 5400/6245 86%
[conn1] external sort used : 413 files in 25 secs
[conn1] Index: (2/3) BTree Bottom Up Progress: 185800/2616966 7%
[conn1] Index: (2/3) BTree Bottom Up Progress: 401900/2616966 15%
[conn1] Index: (2/3) BTree Bottom Up Progress: 554200/2616966 21%
[conn1] Index: (2/3) BTree Bottom Up Progress: 769700/2616966 29%
[conn1] Index: (2/3) BTree Bottom Up Progress: 973700/2616966 37%
[conn1] Index: (2/3) BTree Bottom Up Progress: 1175400/2616966 44%
[conn1] Index: (2/3) BTree Bottom Up Progress: 1380700/2616966 52%
[conn1] Index: (2/3) BTree Bottom Up Progress: 1588900/2616966 60%
[conn1] Index: (2/3) BTree Bottom Up Progress: 1794900/2616966 68%
[conn1] Index: (2/3) BTree Bottom Up Progress: 1936500/2616966 73%
[conn1] Index: (2/3) BTree Bottom Up Progress: 2125800/2616966 81%
[conn1] Index: (2/3) BTree Bottom Up Progress: 2315800/2616966 88%
[conn1] Index: (2/3) BTree Bottom Up Progress: 2528700/2616966 96%
[conn1] done building bottom layer, going to commit
[conn1] build index done. scanned 6245 total records. 160.617 secs
[conn1] insert test.system.indexes ninserted:1 keyUpdates:0 locks(micros) w:160642416 160645ms
Check indexes.
db.coll.getIndexes()
[
{
"v" : 1,
"key" : {
"_id" : 1
},
"ns" : "test.coll",
"name" : "_id_"
},
{
"v" : 1,
"key" : {
"_fts" : "text",
"_ftsx" : 1
},
"ns" : "test.coll",
"name" : "content_text",
"weights" : {
"content" : 1
},
"default_language" : "english",
"language_override" : "language",
"textIndexVersion" : 1
}
]
Check index size. It's about half the text size it indexed.
db.coll.stats()
{
"ns" : "test.coll",
"count" : 6245,
"size" : 69054068,
"avgObjSize" : 11057.496877502002,
"storageSize" : 178520064,
"numExtents" : 12,
"nindexes" : 4,
"lastExtentSize" : 49213440,
"paddingFactor" : 1.0000000000003018,
"systemFlags" : 0,
"userFlags" : 1,
"totalIndexSize" : 86314032,
"indexSizes" : {
"_id_" : 212576,
"content_text" : 85381968
},
"ok" : 1
}
Have a test.
db.coll.runCommand("text", {search:'Hello'})
{
"queryDebugString" : "hello||||||",
"language" : "english",
"results" : []
"stats" : {
"nscanned" : 4,
"nscannedObjects" : 0,
"n" : 4,
"nfound" : 4,
"timeMicros" : 157
},
"ok" : 1
}
Not bad.
