Having a problem with HA Chef

Chef Infra (archive)
1

Hello everyone,

Although Chef is working fine on a single server I’m having some difficulty
making an “HA” chef (per this support page:
http://wiki.opscode.com/display/chef/Scalability+and+High+Availability)

Platform / Version info: Ubuntu 10.04.1 LTS / Chef 0.10.8

  • Have 2 chef servers: chef2, chef3

  • chef2 has a number of cookbooks, roles, data_bags, etc already working & I
    just want to mirror this onto chef3

  • We have local HA NFS cluster so wanted to use that instead of DRDB to share
    CouchDB, SOLR, and so forth

I mounted these directories NFS on chef3 from chef2 as I figured this would
make them almost identical…

/var/lib/couchdb
/var/lib/chef
/var/cache/chef
/var/chef

Problems / Questions

  • I must be missing something because the nodes, cookbooks, data_bags, etc on
    chef2 are not present on chef3 and I rather thought they would be…

  • I realize because the servers are different I’ll have client management
    problems after a failover since the /etc/ directories are different, but if I
    make them the same chef3 has authentication problems with itself because it’s
    key is chef2’ (so chef server and chef-server-webui have startup problems)

  • What should I be doing differently to make chef3 mirror chef2?

Any help is appreciated as HA chef seems fairly manual at mo.

Thanks List!

2

couchdb versions are same? you should not have client management problems,
as the public keys for individual client is stored inside couch only.

On Wed, Mar 21, 2012 at 4:13 AM, thor.newman@dominionmarinemedia.comwrote:

Hello everyone,

Although Chef is working fine on a single server I'm having some difficulty
making an "HA" chef (per this support page:
http://wiki.opscode.com/display/chef/Scalability+and+High+Availability)

Platform / Version info: Ubuntu 10.04.1 LTS / Chef 0.10.8

  • Have 2 chef servers: chef2, chef3

  • chef2 has a number of cookbooks, roles, data_bags, etc already working &
    I
    just want to mirror this onto chef3

  • We have local HA NFS cluster so wanted to use that instead of DRDB to
    share
    CouchDB, SOLR, and so forth

I mounted these directories NFS on chef3 from chef2 as I figured this would
make them almost identical...

/var/lib/couchdb
/var/lib/chef
/var/cache/chef
/var/chef

Problems / Questions

  • I must be missing something because the nodes, cookbooks, data_bags, etc
    on
    chef2 are not present on chef3 and I rather thought they would be...

  • I realize because the servers are different I'll have client management
    problems after a failover since the /etc/ directories are different, but
    if I
    make them the same chef3 has authentication problems with itself because
    it's
    key is chef2' (so chef server and chef-server-webui have startup problems)

  • What should I be doing differently to make chef3 mirror chef2?

Any help is appreciated as HA chef seems fairly manual at mo.

Thanks List!

3

Hello,

Interesting. I am setting up HA Chef too.

I think, the client keys for web UI should be different. But anything
else, should be the same (on NFS).

I wonder is it possible to set up 2 chef server in active-active way.

Regards,
Tetsu

On 3/21/12 7:43 AM, thor.newman@dominionmarinemedia.com wrote:

Hello everyone,

Although Chef is working fine on a single server I'm having some difficulty
making an "HA" chef (per this support page:
http://wiki.opscode.com/display/chef/Scalability+and+High+Availability)

Platform / Version info: Ubuntu 10.04.1 LTS / Chef 0.10.8

  • Have 2 chef servers: chef2, chef3

  • chef2 has a number of cookbooks, roles, data_bags, etc already working& I
    just want to mirror this onto chef3

  • We have local HA NFS cluster so wanted to use that instead of DRDB to share
    CouchDB, SOLR, and so forth

I mounted these directories NFS on chef3 from chef2 as I figured this would
make them almost identical...

/var/lib/couchdb
/var/lib/chef
/var/cache/chef
/var/chef

Problems / Questions

  • I must be missing something because the nodes, cookbooks, data_bags, etc on
    chef2 are not present on chef3 and I rather thought they would be...

  • I realize because the servers are different I'll have client management
    problems after a failover since the /etc/ directories are different, but if I
    make them the same chef3 has authentication problems with itself because it's
    key is chef2' (so chef server and chef-server-webui have startup problems)

  • What should I be doing differently to make chef3 mirror chef2?

Any help is appreciated as HA chef seems fairly manual at mo.

Thanks List!