Forked from joeyAghion/mongodb_collection_sizes.js
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March 15, 2016 13:50
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List mongodb collections in descending order of size. Helpful for finding largest collections. First number is "size," second is "storageSize."
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| function getReadableFileSizeString(fileSizeInBytes) { | |
| var i = -1; | |
| var byteUnits = [' kB', ' MB', ' GB', ' TB']; | |
| do { | |
| fileSizeInBytes = fileSizeInBytes / 1024; | |
| i++; | |
| } while (fileSizeInBytes > 1024); | |
| return Math.max(fileSizeInBytes, 0.1).toFixed(1) + byteUnits[i]; | |
| }; | |
| var collectionNames = db.getCollectionNames(), stats = []; | |
| collectionNames.forEach(function (n) { stats.push(db[n].stats()); }); | |
| stats = stats.sort(function(a, b) { return b['size'] - a['size']; }); | |
| for (var c in stats) { print(stats[c]['ns'] + ": " + getReadableFileSizeString(stats[c]['size']) + " (" + getReadableFileSizeString(stats[c]['storageSize']) + ")"); } |
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