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Starting from version 3.0, mongodb support pluggable storage engine. How to know which storage engine is being used in a system?

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Mayank Patel
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3 Answers3

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Easiest way to find the storage engine being used currently in from mongo console.

Inside mongo console, type (You might need admin access to run this command)

db.serverStatus().storageEngine

If It returns,

{ "name" : "wiredTiger" }

WireTiger Storage engine is being used.

Once it is confirmed that wiredTiger is being used then type

db.serverStatus().wiredTiger

to get all the configuration details of wiredTiger.

Utsab
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Mayank Patel
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    He is the most mysterious user which I've ever seen on stackoverflow. He looks like a scholar of MongoDB. There are a lot of answer belongs to him on stackoverflow. Also his reputation seems just 1 and account is ` temporarily suspended` every time. – efkan Aug 24 '15 at 15:03
11

On the console, Mayank's answer makes more sense.
On the other hand, by using MongoDB GUI like MongoChef or Robomongo storageEngine may be found by using the ways below;

On Robomongo;

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On MongoChef;

enter image description here

efkan
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  • do you know how to change the storage engine to wiredtigeR? – Derek Sep 05 '15 at 04:49
  • Yep. I've changed my storage engine by re-installing MongoDB. Check this question and answers; http://dba.stackexchange.com/a/104583/61836 – efkan Sep 07 '15 at 07:33
2

You can detect this via:

db.serverStatus().wiredTiger

So at "present" where this "exists" then there is a different storage engine configured other than the default "MMAPv1" where "WiredTiger" is not used.

This applies to the present "MongoDB 3.0x" series

Neil Lunn
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