Jira (PDB-2256) Regression/Performance Issue introduced by PDB-135

Title: Message Title

Olivier Hanesse created an issue

PDB-2256

Hello,

I got a regression/performance issue using puppetdb-termini, version > 3.2

PR #1640 has introduced a warning message when using invalid UTF-8 sequence.

The issue is located here :

This function just takes forever to complete when using a "big" catalog.

Step to reproduce :

It's pretty easy, you just need to trigger this function (so with a catalog with some non UTF-8 caracters), and a "big" catalog. For example :

node default{

$loops = range("0", "500")

each($loops) |$iteration| {

  file {"/tmp/test-$iteration":

    ensure  => file,

    owner   => 'root',

    group   => 'root',

    content => template('test/test.erb'),

with test.erb, including some non UTF-8 caracters like a Kerberos Keytab file :

<%data = "">'/etc/krb5.keytab').read-%><%= data -%>

On my computer, performance of this function is :

With range 10 : 0s
With range 100 : 8s
With range 500 : 3min5s
With range > 10000, still waiting to complete

As you can see, this isn't linear. Catalog compilation isn't affected by this (always <1s).

On a production environment, this bug leads to a puppetserver having all workers 'blocked' on this function, with a 100% cpu consumption.

I think this issue, is specific to Jruby. Using Ruby interpreter, I couldn't reproduce it.

Looking at some jruby issues, I've seen this one : https://github.com/jruby/jruby/issues/504
This could be linked, but I amn't sure.

Regards

Olivier

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