Version 2 (modified by 8 years ago) (diff) | ,
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Running operating system updates
Support team members with root access on all servers can help with running operating system updates (apt-get update && apt-get dist-upgrade
).
Using freepuppet, there are two ways to do this:
- Upgrade one or more servers serially:
freepuppet-helper au:viewsic freepuppet-helper au:mosh
- Upgrade multiple servers simultaneously:
- Ensure you have cluster ssh installed:
apt-get install clusterssh
- Use freepuppet helper. The following example will open a series of 12 simultaneous ssh connections to mosh servers. There will be one window to type a command that will be executed on all servers at the same time. Type:
apt-get update
followed byapt-get dist-upgrade
. Once it is complete on all servers, type:exit
. Once all connections are closed, it will open the next 12 until all mosh servers have been opened.freepuppet-helper ce:mosh
- Ensure you have cluster ssh installed:
Whenever possible, run updates after 10:00 pm America/New_York during the working week or anytime on the weekend.