Mongo index reviewer

After exporting your indexes using mongo-index-exporter it's time to review them and remove from database those which are not accurate anymore. This might sounds simple but if you have many collections and many indexes, this simple task will become very time consuming.

I have created this utility to simplify this process.

Usage

This utility can be used as a command-line tool and also as a node module (see sample folder).

Installation

npm install -g mongo-index-reviewer

CLI

Command-line version is provided with help that will tell you everything you might need:

mongo-index-reviewer  --help

Basic usage:

mongo-index-reviewer localhost:27017/test --indexFile ./reviewedIndexes.js

Usage with authentication:

mongo-index-reviewer localhost:27017/test -u john -p s3ecr3t --indexFile ./reviewedIndexes.js

mongo-index-reviewer localhost:27017/test --username superuser --password T0pS3ecr3t --authenticationDatabase admin

Output

CLI version outputs dropIndex statements that you can immediately use to cleanup your database indexes:

// library.books
db.library.books.dropIndex({"year":1});

// library.genres
db.library.genres.dropIndex({"tag":1});

Full workflow

1. Use mongo-index-exporter to extract indexes from your database:

mongo-index-exporter localhost:27017/test > indexesForReview.txt

2. Manually review and update index definitions (reviewedIndexes.txt).

3. Import them into database:

cat reviewedIndexes.txt | mongo localhost:27017/test

4. Use mongo-index-reviewer to compare reviewed indexes with those in database:

mongo-index-reviewer localhost:27017/test --indexFile ./reviewedIndexes.txt > outstandingIndexes.txt

5. Remove outstanding indexes from your database:

cat outstandingIndexes.txt | mongo localhost:27017/test

Disclaimer

This utility was created by me during my free time and any usage is at your own risk.

License

(The MIT License)

Copyright (c) 2016 martinerko

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.