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== How to install MongoDB 4.0 ==
== How to install MongoDB 4.0 ==
{{Note box| All info is based on SME Server 9 only but I have just started to test on v10 - see notes below}}
=== Install Official Repository ===
=== Install Official Repository ===
This should work for every version of Koozali SME
You may need to change the mongodb version as required
db yum_repositories set mongodb repository \
db yum_repositories set mongodb repository \
BaseURL https://repo.mongodb.org/yum/redhat/\$releasever/mongodb-org/4.0/x86_64/ \
BaseURL https://repo.mongodb.org/yum/redhat/\$releasever/mongodb-org/4.0/$basearch/ \
EnableGroups no \
EnableGroups no \
GPGCheck yes \
GPGCheck yes \
yum install mongodb-org --enablerepo=mongodb
yum install mongodb-org --enablerepo=mongodb
If refuses to install because o GPG Key you can change '''GPGCheck''' above from '''Yes''' to '''No''' and try '''yum install...''' again or
If refuses to install because of no GPG Key you can change '''GPGCheck''' above from '''Yes''' to '''No''' and try '''yum install...''' again or
rpm --import https://www.mongodb.org/static/pgp/server-4.0.asc
Or
yum install mongodb-org --enablerepo=mongodb --nogpgcheck
yum install mongodb-org --enablerepo=mongodb --nogpgcheck
===Start Mongo===
===Start Mongo===
{{Warning box|Please check additional notes below before trying this section}}
{{Note box|If you start mongo like this you will run mongo as root.
When mongo later tries to start automatically it may fail because it will be started as the mongod user and won't be able to access the DB files.}}
/etc/init.d/mongod start
/etc/init.d/mongod start
signal-event post-upgrade
signal-event post-upgrade
signal-event reboot
signal-event reboot
===Additional Notes===
Note - I need to test this again This is my initial observation.
As far as I can see, the link above to mongodb is not necessary.
It may need this to set on and off correctly in other service levels:
chkconfig mongod on
Create a service link in in rc7.d:
ln -s /etc/init.d/mongod /etc/rc.d/rc7.d/S57mongod
To use e-smith-service it will need a key:
config set mongod service status enabled
You should now be able to do:
service mongod start|stop|restart etc
Mongo should come up on boot.
==Koozali SME v10==
{{Warning box| Complete work in progress - here be Dragons!}}
===Install===
Use the above method to add the repo and then:
yum --enablerepo=mongodb install mongodb-org
Mongo will automatically create a symlink so currently there is no way to enable/disable it apart from manually. Once Koozali SME has some more systemd tools we can use DB keys etc.
Created symlink from /etc/systemd/system/multi-user.target.wants/mongod.service to /usr/lib/systemd/system/mongod.service
To enable/disable this just use:
systemctl {en|dis}able mongodb
And to start stop
systemctl {start|stop|restart} mongodb
===Vaporise or reinitialise the database===
{{Warning box| This will totally and utterly vaporise your data. Got a backup?? You have been warned}}
Remove the directory contents:
rm -rf /var/lib/mongo/*
Or remove the entire directory and recreate it with the correct ownership:
rm -rf /var/lib/mongo
mkdir -p /var/lib/mongo
chown -R mongod:mongod /var/lib/mongo
If you have a replicaset set in /etc/mongod.conf make sure you initiate it:
mongo --eval "printjson(rs.initiate())"
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