Upgrading mongodb has no effect and still shows the old version

Question

Following are the commands which I used to upgrade my mongodb version from 2.6.9 to latest, but its still showing me the previous version. Let me know what I am doing wrong

Answer 1

You can replace binaries to upgrade to mongodb 3.0 as follows (works on Ubuntu/CentOs but commands are listed for Ubuntu) :

1. Download tar from mongodb website as per your destribution from : https://www.mongodb.org/downloads

2. Untar downloaded file.

   tar -zxvf {mongo-tar-file}.tgz

3. Stop mongod service.

   sudo service mongod stop

4. Replace binaries from your tar/bin to /usr/bin.

   cd {your-extracted-folder}/bin

   sudo mv -f * /usr/bin/

5. Start mongod service.

   sudo service mongod start

After you connect to mongo after this, you can see version has been updated. I have upgraded in this way on my production servers without any issue.

You should backup your data before upgrading. Usually no backup/restore is necessary but sometimes things don't go as expected.