Varnish constantly running into an OOM condition.

[Chris Lee]

Hi again.

I just noticed something while looking into this:

The other suspect is the newer jemalloc version in the repository

I noticed that jemalloc doesn’t appear to be used, and the RPM isn’t even installed or listed a dependency when using the default package in AppSteam [1]


[atlasfrontiergpn02 ~]# ldd /usr/sbin/varnishd

linux-vdso.so.1 (0x00007ffc84fb0000)

libpcre.so.1 => /lib64/libpcre.so.1 (0x00007fd43b8ad000)

libm.so.6 => /lib64/libm.so.6 (0x00007fd43b7d2000)

libc.so.6 => /lib64/libc.so.6 (0x00007fd43b400000)

/lib64/ld-linux-x86-64.so.2 (0x00007fd43ba8f000)

Testing now with a new node with V7, I can see the jemalloc is now installed as a dependency?
I am assuming that this could be causing the issues with the overheads?

Cheers
Chris

[1]


[root at atlasfrontiergpn02 ~]# rpm -qi varnish

Name        : varnish

Version     : 6.6.2

Release     : 6.el9_6.1

Architecture: x86_64

Install Date: Wed 02 Jul 2025 02:35:38 PM CEST

Group       : Unspecified

Size        : 3133696

License     : BSD

Signature   : RSA/SHA256, Mon 02 Jun 2025 01:28:24 PM CEST, Key ID d36cb86cb86b3716

Source RPM  : varnish-6.6.2-6.el9_6.1.src.rpm

Build Date  : Mon 02 Jun 2025 05:56:10 AM CEST

Build Host  : x64-builder01.almalinux.org

Packager    : AlmaLinux Packaging Team <packager at almalinux.org>

Vendor      : AlmaLinux

URL         : https://www.varnish-cache.org/

Summary     : High-performance HTTP accelerator

Description :

This is Varnish Cache, a high-performance HTTP accelerator.


Varnish Cache stores web pages in memory so web servers don’t have to

create the same web page over and over again. Varnish Cache serves

pages much faster than any application server; giving the website a

significant speed up.


Documentation wiki and additional information about Varnish Cache is

available on: https://www.varnish-cache.org/

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