Jira (PUP-9577) Large numbers of facts cause slow performance

[Reid Vandewiele (Jira)]

Title: Message Title

Reid Vandewiele commented on PUP-9577   Re: Large numbers of facts cause slow performance The customer triage that was put in place, and which decisively solved the issue, was to patch the Puppet::Parser::TemplateWrapper class to filter which ivars are set. Filter:  require 'delegate'   class ToHashScopeFilterDelegator < SimpleDelegator def to_hash(*args) __getobj__.to_hash(*args).reject { |k, _| k.start_with?('badfact_') } end end Patch: Puppet::Parser::TemplateWrapper.class_eval do def scope ToHashScopeFilterDelegator.new(@__scope__) end end The filter used by the customer is specific to their situation and so could be performed by prefix. It is clearly evident that limiting the number of ivars set solved the problem. Add Comment   This message was sent by Atlassian Jira (v8.13.2#813002-sha1:c495a97) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/puppet-bugs/JIRA.301092.1553181872000.70351.1625071200466%40Atlassian.JIRA.