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#mongodb logs for Thursday the 5th of December, 2013
[00:35:03] <enjawork> im having trouble getting indices to work right. when explaining nscanned is showing that its scanning my entire collection even tho i am specifying a limit in the options to my query
[00:38:03] <peterjohnson> hey all. have a question about clonecollection in mongodb if anyone could help!
[01:04:17] <qswz> when you search for the presence of *only* "bar" in the "foo" array, still always need the array notation? {"foo":{$in:["bar"]}
[01:49:35] <nocturne777> I think there's an issue with the author's code here: http://pastebin.ca/2492286
[01:50:55] <nocturne777> I just do not understand how the second 'update' request could result in "result['updatedExisting'] == true"
[02:55:21] <joannac> Well, Europe is asleep, the US is still out having dinner, and most of Asia Pacific is at work
[03:13:50] <naillwind_> mongo db challenge. how is it possible to do an update with an $addToSet operation on a nested array? eg field, array, array. structure sample in this http://pastebin.com/Drgdiznn
[03:26:38] <quickdry21> Anyone know if a config server (1/3 for the cluster) going down (for backups), will cause pymongo to raise an AutoReconnect exception?
[03:30:08] <naillwind_> joannac: update: mongodb nested array where update challenge: pastebin.com/bPCmVAku
[03:52:31] <aliceow> where can I find the documentation for db.collection('collection-name', callback)?
[03:53:06] <aliceow> I found http://mongodb.github.io/node-mongodb-native/markdown-docs/collections.html#selecting-collections, but it doesn't specify what callback is
[03:53:53] <aliceow> yes, I know what db.collection is supposed to have in its arguments. The reason I'm asking for documentation is so that in the future I can refer to this source if I encounter something I don't know.
[03:55:01] <naillwind_> umm so in mongodb, is it not possible to perform an operation such as: db.collection.update({_id: doc}, { $push: { 'array.doc(where _id: abc).subarray': { _id: "123" }}}); somehow?
[03:56:35] <retran> http://docs.mongodb.org/manual/reference/operator/query/elemMatch/#op._S_elemMatch
[04:00:30] <naillwind_> retran, thanks.. I was right on that with this as well: http://diogogmt.wordpress.com/2012/03/23/update-elementmatch-and-the-positional-operator-on-mongodbmongoose/
[04:01:21] <naillwind_> just wondered how it was possible to use it in combination with .update and $addToSet
[04:22:56] <aliceow> nvmd guys, I found it http://mongodb.github.io/node-mongodb-native/api-generated/db.html#collection
[05:13:32] <naillwind_> now comes the challenge of removing a specific document where _id is known from a specific collection document array array
[05:40:23] <naillwind_> cool, just as easy on the remove, from document array array specific position.
[06:03:07] <liquid-silence> guys is this possible db.collections("books").update({ "_id": book_id, $or: { "parent_id": book_id }}
[06:05:37] <joannac> liquid-silence: check the syntax for $or http://docs.mongodb.org/manual/reference/operator/query/or/
[06:06:12] <liquid-silence> db.collections("books").update({ "_id": book_id, $or: [{ "parent_id": book_id }]}
[06:30:13] <liquid-silence> db.collection("books").update({$or: [{"_id": book_id},{"parent_id": book_id }]
[06:42:33] <liquid-silence> db.books.find({$or: [{ _id: "52a0154d000000487f000003"}, { parent_id: "52a0154d000000487f000003"}]})
[07:08:02] <morfin> i need to let only one user access some document(other users should not be able to read\modify that document)
[07:10:33] <morfin> as exaple user A is loading random client from database another user B should not get that client if loading random client at same time
[07:12:34] <joannac> if you're writing a document, that's atomic. you're not going to see a half-written document
[07:12:56] <joannac> Unless you're doing it is parts: db.foo.save(), db.foo.update(), db.foo.update()
[07:13:52] <morfin> i need read document display for user(he will fill fields etc) then he will "commit" changes and unlock
[08:40:52] <Nilshar> Hello all, there is something I don't understand in my mongo setting. I'm using php driver to connect to a replicaset, giving to php master and slave host. all works fine when all servers are up, but if I shut down the slave host (not only the mongod, but all the host), then all connection to mongodb are slow (>3s), any idea why ?
[10:22:10] <Nilshar> maybe I will. just want to be sure that's not a conf issue or whatever is my fault ;)
[11:05:36] <Derick> Nilshar: to figure out what happens, the best is to make a log. With MongoLog you can do tha. Let me give you a link
[12:25:21] <amaron> I have collection of parent objects with child attribute which is an array of child objects
[12:29:53] <Nodex> something along the lines of this... db.foo.find({"children._id":someId},{"children.$":1});
[12:30:03] <Nodex> http://docs.mongodb.org/manual/reference/operator/projection/positional/#proj._S_ <--- more information
[14:02:00] <Nilshar> Derick: very useful thanks. well, it tries to connect to the slave and block everything until timeout.
[14:15:35] <ajph> hi. i'm looking for some anecdotal information to suggest what sort of performance i might get out of mongodb on various ec2 instances. anyone mind sharing?
[18:08:10] <cheeser> http://docs.mongodb.org/manual/tutorial/resync-replica-set-member/#sync-by-copying-data-files-from-another-member
[20:01:44] <othiym23> hello everybody, does anybody know what happened to node-mongodb-native 1.3.20?
[20:02:17] <othiym23> I got some complaints about it breaking New Relic's instrumentation for Node so I added some changes and tests to deal with the way it handled cursors, but now it's been pulled from npm
[20:02:55] <othiym23> side note: it's really irritating when packages are pulled from npm, because it means that the tests continue to pass on our dev boxes but fail in CI because CI doesn't have the pulled modules in cache
[20:03:15] <othiym23> putting out a new version of the module with whatever was bad reverted is *much* better for downstream consumers
[20:03:30] <othiym23> anyway, I'm wondering what happened there, and if I should nuke those tests, or what
[20:17:04] <ranman> othiym23 as I understand it the issue with 1.3.20 was an issue with NPM behavior not the driver
[20:34:14] <ranman> http://splitsider.com/2013/12/people-think-the-onions-report-on-nypds-stop-and-kiss-program-is-actually-real/
[20:53:48] <tab1293> I put in an intern application and wanted to see if there was someone who I could contact to see if it was receieved
[21:06:51] <solidus-lake> hey all, i keep getting a 104 from pymongo why would this be hapening so frequently? i dont see it beign under much load
[21:41:20] <solidus-lake> Joeskyyy: no, but this is happening on a fetch is there a certain size limit i should worry about?
[21:43:28] <Joeskyyy> Someone had a similar issue here, see their resolution/calculation in the first answer: http://stackoverflow.com/questions/11498631/connection-reset-by-peer-error-in-mongodb-on-bulk-insert
[21:44:28] <Joeskyyy> I'm not 100% sure on fetches though, maybe someone else can chime in to confirm
[22:07:49] <skloot> I've got a shard draining that's been stuck on one chunk remaining for hours, and there's no moveChunk in progress... is that normal?
[22:12:33] <skloot> In case anyone's curious, I just set draining=false and then did removeShard again and it worked. Woo....
[23:21:24] <Joeskyyy> It's a bit hard to tell… what was the last thing you did mongo related before it stopped working. Any updates or anything
[23:23:12] <gm99> Dev team had a script which was running ensureindex everytime when they were doing queries
[23:24:13] <gm99> [conn422719] insert prod.system.indexes keyUpdates:0 exception: BSONElement: bad type 25 code:10320 locks(micros) w:19663438 19663ms