The Squid team are planning to remove the Custom XML parser used for ESI processing from the next Squid version.

At first this seemed like a simple removal if unused functionality. However during review of the changes it turns out this functionality may be used in many situations when it should not have been.

Can people using ESI please provide answers for these questions:

What is your setting for esi_parser squid.conf directive?

 a) did not set it
 b) "expat"
 c) "libxml2"
 d) "custom"

If you answered (d), why choose that one?

If you answer (a) does setting it explicitly to either of the other parsers cause a large impact on your traffic performance?


If yes, which did you choose?

 ... and how much of an impact was seen?

If you are not comfortable answering this to the squid-dev mailing list please feel free to send your responses directly to me.

Amos Jeffries
The Squid Software Foundation

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