Database Administrators Stack Exchange
Database Administrators Stack Exchange

Questions tagged [mongo-repair]

25 questions
8
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1 answer

How to match a WiredTiger index file to its corresponding collection

I have a mongodb database with about 2 billion records, shared between 20 or so collections. Each of these collections has an index on it, based on a single key (other than _id). I have an index file (named index-1-5374774422504609475.wt) that I'd…
JonLuca
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1 answer

Restore mongoDB by --repair and WiredTiger

We accidentally deleted the directory rm -rf /data/db which was our MongoDB path, and thanks to extundelete, we recovered it and got the directory /data/db. Here are our files in the directory, and the files was generated under MongoDB version…
国贵棠
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3
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2 answers

How much free space do I need for mongoDB? and how to reclaim lost space?

I ran out of disk space on my mongo database. I saw it and dropped some collections (120 out of 1700 i had). And ran db.compact(...) thinking it would release free space. well, that was a stupid idea. Anyway, the database is around 800GB, and I dont…
xcorat
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cleaning up failed repair db: path: /var/lib/docker/wesfgr/repair/_tmp_repairDatabase_0

We run MongoDB 3.0.6 with MMAP in Docker container (single node). The filesystem was full and I did a repair with other path. 2016-10-03T08:58:51.186+0200 I INDEX [initandlisten] building index using bulk…
Sybil
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6 answers

Mongodb exception: connect failed

Here's the environment: Linux(x64): 16.04 MongoDB: 3.2.15 Error: root@system-test:~# mongo MongoDB shell version: 3.2.15 connecting to: test 2017-07-25T07:31:28.528+0000 W NETWORK [thread1] Failed to connect to 127.0.0.1:27017, in(checking socket…
Siddhartha Chowdhury
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mongod crashes with “Invariant failure getExtent( a )->xprev.isNull()” message

I am trying to start a mongodb server with the database, that is located on portable drive. I know barely nothing about the internals of this particular database. There are 647 database.N files, 2G each, and database.ns of size 16M. I mounted the…
Aleksei Matiushkin
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how to convert mongodb(2.4.10) startup2 to primary

I have standalone bitnami mongodb(2.4.10). The output of rs.status() command is below : rs.status() { "set" : "test", "date" : ISODate("2015-11-13T08:07:41Z"), "myState" : 5, "members" : [ { "_id" : 0, …
singh
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1 answer

Mongo Storage Engine from mmap to wiredTiger

We have a mongo(v3.0.3) database->collections which is in mmap storage engine. We are trying to change it to wiredtiger we tried the process below.But we still see the same old storage…
user3392695
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1 answer

Mongo repair database "ERROR: error: exception cloning object in local.system.replset "

I'm trying to repair a mongo database and am running into the following error early on: Wed Jul 24 16:55:21 [initandlisten] ERROR: error: exception cloning object in local.system.replset E11000 duplicate key error index: local.system.replset.$_id_ …
atxdba
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How to repair mongodb collection when index is corrupt?

Mongo version: 2.6 I think one or more of my MongoDB index is corrupt which is not letting me delete the corrupt collection or make a backup with mongodump Below is the error i get when i try to execute drop >db.notifications.drop() "$err" : "no…
sherpaurgen
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1 answer

Could we recover Mongo records from the data files only without namespace files?

I am missing a namespace file from the Mongo db path. I only have data files with number extensions (e.g. report.4,report.5). Is there any way to recover the mongodb dump from the data files?
Bimal Tamang
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1 answer

mongodb compact does nothing - no entry in mongodb.log and nothing in db.currentOp()

We have space problems. The actual data size is only 5 GB, but disk size is 15 GB because of deleted documents. MongoDB (3.0.6) runs in docker container where we can't extend volume. # tail -f mongod.log 2016-04-26T14:43:59.631+0000 I STORAGE …
Sybil
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2 answers

MongoDB document delete and fragmentation

I've a MongoDB collection that works like a queue: new documents are insert and old documents (after 60days) are removed. I can see a rapid grown of the datafile size, too rapid. I can be reasonable because we remove old data after 60 days, but I…
Andrea Girardi
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Why does MongoDB extend FileSize if it is already 5x larger than DataSize

I recently had to assign more diskspace to my MongoDB 2.4.8 instance. This instance continually receives transactions, makes some updates and then deletes them after 3 months. I would therefore expect that the disk usage was relatively constant. The…
Karl Ivar Dahl
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1 answer

Mongo repairDatabase procedure

I need to run a repairDatabase in mongo in order to reclaim some os disk space. Can anyone provide feedback on the following procedure: let me know if its correct, if I'm missing anything, if the steps are in order, etc. The setup is a…
user2694306
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