[Spacewalk-list] avoiding the thundering herd

[Robert Paschedag]

Am 9. April 2019 23:40:35 MESZ schrieb Guy Matz <guymatz at gmail.com>:
>Hello!  I am going to be upgrading a number of servers and don't want
>them
>all banging on my spacewalk server at the same time to download
>packages .
>. .  I was hoping to be able to "stage" the updates on the servers
>before-hand, then trigger the update via spacewalk.  I was hoping this
>might result in a faster upgrade process on the day of upgrades, making
>the
>upgrade a bit easier to deal with . . .
>
>Any thoughts on how to go about this?  Any suggestions otherwise?
>

Hmm..I think I would run a remote command on all clients to do an "upgrade" with "download only" option.

That prefixed with a sleep $RANDOM for example so the packages get staged on the clients and all not running at the same time.

Then schedule upgrade of all hosts via spacewalk or - again - run remote command to upgrade now.

If no new packages have been added to the channels, the clients might only refresh the channel metadata and the rest should run "offline"

Robert

>Thanks a lot,
>Guy


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