[chef] Re: chef-client run on large number of nodes

[Sam Pointer < >]

Hi.

I mentioned some benchmark conclusions here that might help: http://lists.opscode.com/sympa/arc/chef/2013-09/msg00486.html. The 500 nodes were converged concurrently without splay (although in normal operation as mentioned elsewhere it is a good idea to configure it).

You talk about performance degradation over time. The Chef server does not store history. A non-exclusive list of things that grow are:

• general logging, until they are rotated out according to your schedule
• postgres' various transactional logs until they too expire

However, these are a part of normal operations, and properly managed need not impact performance.

You also ask about running the chef-client only after updating the run_list.  To be clear, Chef currently does not support a "push" or "poke" model without some outside influence. The onus is on the client to contact the server. All of Andy's suggestions are good glue with which to invoke the client across many boxes in order coordinate running it with some other event, like updating the run_list.

On 1 October 2013 12:50, < " target="_blank"> > wrote:

Hi

 

I have my own chef server installed and I am going to add some 1000 of nodes to my server.

I wonder if chef-client run on all the nodes after a specified period of time repeatedly it may result in lower performance of chef server.

Can I automate the chef-client run only after I update & save the run-list on server. I mean only when I will update the run-list my chef server should notify the nodes to run chef-client at its end.

 

Thanks & Regards,

Upma Gupta (WT01 - Integrated Cloud Group)

Wipro Technology

Bangalore, India

Please do not print this email unless it is absolutely necessary.

The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments.

WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email.

www.wipro.com