October 2017
Intermediate to advanced
226 pages
6h 56m
English
Content preview from MongoDB Administrator's Guide
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How to do it...
- Connect to the primary member of the replica set using the mongo shell:
mongo mongodb://192.168.200.200:27017
- Fetch the configuration:
conf = rs.conf()
- Remove the third member of the replica set:
conf['members'].pop(2)
- Reconfigure the replica set:
rs.reconfig(conf)
- Confirm that the third node was removed by inspecting the output of rs.status():
rs.status()['members']
- Add the third node back to the replica set:
member = {"_id": 2, "host": "192.168.200.200:27019"} conf['members'].push(member)
- Reconfigure the replica set:
rs.reconfig(conf)
- Confirm that the addition was successful:
rs.status()['members']
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