# Chef Server 12.0.1 - chef-server-ctl - ffi-yajl and yajl-ruby warning

**URL:** <https://discourse.chef.io/t/chef-server-12-0-1-chef-server-ctl-ffi-yajl-and-yajl-ruby-warning/6133>\
**Category:** Chef Infra (archive)\
**Created:** [December 30, 2014, 5:17pm UTC](https://discourse.chef.io/t/chef-server-12-0-1-chef-server-ctl-ffi-yajl-and-yajl-ruby-warning/6133 "2014-12-30T17:17:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Mark\_Selby](https://avatars.discourse-cdn.com/v4/letter/m/c57346/32.png) [@Mark\_Selby](https://discourse.chef.io/u/Mark_Selby)\
**Post date:** [December 30, 2014, 5:17pm UTC](https://discourse.chef.io/t/chef-server-12-0-1-chef-server-ctl-ffi-yajl-and-yajl-ruby-warning/6133/1 "2014-12-30T17:17:05Z")

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I have searched this list and Chef Server release notes and have not found any  
other reports of this warning so I thought I would see if anyone has any input

Running Chef Server 12.0.1 on CentOS 6.6 x86\_64.

All chef-server-ctl commands result in a “warning” about what seems to be  
conflicting gem packages in the 11.12.2 client that the embedded server uses  
for convergence.

Is this anything that I should worry about? Is this a know issue?

Many Thanks!

root@is1 /root 1826# chef-server-ctl status

the ffi-yajl and yajl-ruby gems have incompatible C libyajl libs and should not  
be loaded in the same Ruby VM  
falling back to ffi which might work (or might not, no promises)  
ffi-yajl/json\_gem is deprecated, these monkeypatches will be dropped shortly

run: bookshelf: (pid 20835) 56758s; run: log: (pid 20107) 56790s  
run: nginx: (pid 22664) 56273s; run: log: (pid 20507) 56764s  
run: oc\_bifrost: (pid 20556) 56763s; run: log: (pid 19572) 56818s  
run: oc\_id: (pid 20633) 56763s; run: log: (pid 19622) 56807s  
run: opscode-erchef: (pid 20947) 56756s; run: log: (pid 20329) 56783s  
run: opscode-expander: (pid 20734) 56759s; run: log: (pid 19846) 56798s  
run: opscode-expander-reindexer: (pid 20784) 56758s; run: log: (pid 20020)  
56795s  
run: opscode-solr4: (pid 20662) 56761s; run: log: (pid 19775) 56801s  
run: postgresql: (pid 20543) 56763s; run: log: (pid 19148) 56835s  
run: rabbitmq: (pid 18086) 56848s; run: log: (pid 18099) 56848s  
run: redis\_lb: (pid 23622) 56000s; run: log: (pid 20473) 56770s

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**Author:** ![jdunn](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.chef.io/jdunn/32/1800_2.png) [@jdunn](https://discourse.chef.io/u/jdunn)\
**Post date:** [January 6, 2015, 7:44am UTC](https://discourse.chef.io/t/chef-server-12-0-1-chef-server-ctl-ffi-yajl-and-yajl-ruby-warning/6133/2 "2015-01-06T07:44:49Z")

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On Tue, 30 Dec 2014, [mselby@thenextbigsound.com](mailto:mselby@thenextbigsound.com) wrote:

> I have searched this list and Chef Server release notes and have not  
> found any other reports of this warning so I thought I would see if  
> anyone has any input
> 
> Running Chef Server 12.0.1 on CentOS 6.6 x86\_64.
> 
> All chef-server-ctl commands result in a "warning" about what seems to be  
> conflicting gem packages in the 11.12.2 client that the embedded server uses  
> for convergence.
> 
> Is this anything that I should worry about? Is this a know issue?

I've seen this also, so it's not just you. Can you open an issue at  
[Issues · chef/chef-server · GitHub](https://github.com/opscode/chef-server/issues)?

The installed package should be fine though and not something you need to  
worry about.

- Julian

[Julian C. Dunn [jdunn@aquezada.com](mailto:jdunn@aquezada.com) \* Sorry, I'm ]  
[WWW: [http://www.aquezada.com/staff/julian](http://www.aquezada.com/staff/julian) \* only Web 1.0 ]  
[gopher://sdf.org/1/users/keymaker/ \* compliant!]  
[PGP: 91B3 7A9D 683C 7C16 715F 442C 6065 D533 FDC2 05B9]