[chef] Chef setup has become unstable

[Madhurranjan Mohaan < >]

Hi experts,

We're running 140 Windows nodes and 20 linux based nodes on our chef server with roughly around 40 cookbooks. We've experienced over the last week or so that chef server/ couchdb and chef-solr dies randomly . Can't seem to find much in the logs . I have set it to debug mode.  We've setup monit to automatically restart the processes. We run couchdb compaction at midnight every day . Also , we've seen that the chef server response is very slow when we upload cookbooks or perform any activity through knife . This definitely wasn't the case a couple of months back . 

Can you please suggest some ways so that atleast the response times improve considerably?

Ranjan