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</o:shapelayout></xml><![endif]--></head><body lang=en-IL link=blue vlink=purple style='tab-interval:36.0pt;word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'>Hey </span><span class=SpellE>Szabolcs</span><span lang=EN-US style='mso-ansi-language:EN-US'>,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Since Amos answered your question regarding a simple VM I would like to refer to the k8s part.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>A huge Kubernetes cluster is good for very specific use cases.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>It’s not “easy” to scale and or change the config and update out of the box,<br>you will need to work on that since there aren’t any ready to use solutions for these on k8s.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>‘<span class=SpellE><span class=GramE>kubectl</span></span> apply -f <span class=SpellE>x.yaml</span>’ is not really a good solution for every scaling problem.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Also take into account that you will probably will have issues with cache HITS if the distribution<br>algorithm is unable to inflict the same requests to the same proxy.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>With k8s since the *<b>big</b>* clusters usually <span class=GramE>is</span> on BareMetal it’s possible to get up to 30 percent more<br>performance then a VMs. Also, the network latency is not so high in a k8s cluster for the same reason.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Basically, in most k8s clusters the traffic is almost like inside a shared memory.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>It’s possible to define the specs of the project and to asses from there.<o:p></o:p></span></p><p class=MsoNormal><span class=SpellE><span lang=EN-US style='mso-ansi-language:EN-US'>HAproxy</span></span><span lang=EN-US style='mso-ansi-language:EN-US'> will be able to handle 40k clients without any issues and to allow full HA you might need 2 <span class=SpellE>HAproxy</span> machines.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>The real issue with such a setup is how the config is applied.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>For example, a big list of black and whitelist domains might be better stored outside of squid.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Depends on your requirements you might be able to use either <span class=SpellE>ufdbGuard</span> or another solution.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>There aren’t many differences between containerized squid to VM’s is not a lot. Actually, in the case of a simple forward proxy<br>it might be pretty simple to run a containerized squid on-top of a VM (which how k8s is most runs like these days).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>As for autoscaling squid containers on-top of k8s, you will probably need to invest a lot more then a VM to make this fit your needs.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'>Since you mentioned more Administration time on a VM, it’s not true (to my opinion and experience).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'>There isn’t much of a difference between a VM and a container for a simple forward squid setup.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'>(<span class=GramE>it</span> will be different if you need interception of connections)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'>If you do have more details on the required setup itself it would be pretty simple to find the right way for a good solution.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'>I really recommend you to read the next article:<o:p></o:p></span></p><p class=MsoNormal><span lang=en-IL style='mso-ansi-language:#0C00'><a href="https://ably.com/blog/no-we-dont-use-kubernetes">https://ably.com/blog/no-we-dont-use-kubernetes</a><o:p></o:p></span></p><p class=MsoNormal><span lang=en-IL style='mso-ansi-language:#0C00'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>which touch many aspects of k8s vs <span class=GramE>VM’s.</span><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>I can try to give you an idea for implementation on VM’s but I am still missing couple pieces to understand the best.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Yours,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ansi-language:EN-US'>Eliezer</span><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US'><o:p></o:p></span></p><p class=MsoNormal><span lang=en-IL style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:#0C00;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-no-proof:yes'>----<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-no-proof:yes'>Eliezer Croitoru<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-no-proof:yes'>NgTech, Tech Support<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-no-proof:yes'>Mobile: +972-5-28704261<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-no-proof:yes'>Email: <a href="mailto:ngtech1ltd@gmail.com">ngtech1ltd@gmail.com</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-no-proof:yes'>Web: <a href="https://ngtech.co.il/">https://ngtech.co.il/</a><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:EN-US;mso-fareast-language:EN-US;mso-no-proof:yes'>My-Tube: <a href="https://tube.ngtech.co.il/">https://tube.ngtech.co.il/</a><o:p></o:p></span></p></div><p class=MsoNormal><span lang=en-IL style='mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family:Arial;mso-ansi-language:#0C00;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-US'>From:</span></b><span lang=EN-US style='mso-fareast-font-family:"Times New Roman";mso-ansi-language:EN-US'> squid-users <squid-users-bounces@lists.squid-cache.org> <b>On Behalf Of </b>Pintér Szabolcs<br><b>Sent:</b> Tuesday, 20 September 2022 22:52<br><b>To:</b> squid-users@lists.squid-cache.org<br><b>Subject:</b> [squid-users] Squid performance recommendation<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p>Hi squid community,<o:p></o:p></p><p>I need to find most best and sustainable way to build a stable High Availability squid cluster/solution for abou 40k user.<o:p></o:p></p><p>Parameters: I need HA, caching(little objects only not like big windows updates), scaling(It is just secondly), and I want to use and modify(in production,in working hours) complex black- and whitelists<o:p></o:p></p><p>I have some idea:<br><br>1. A huge kubernetes cluster <o:p></o:p></p><p>pro: Easy to scale, change the config and update.<o:p></o:p></p><p>contra: I'm afraid of the network latency.(because of the most plus layers e.g. vm network stack, kubernetes network stack ith vxlan and etc.).<o:p></o:p></p><p>2. Simple VM-s with a HAProxy in tcp mode<o:p></o:p></p><p>pro: less network latency(I think)<o:p></o:p></p><p>contra: More time to Administration <br><br><br>Has anybody any experience with squid in kubernetes(or similar technology) with a large number of useres?<br><br>What do you think which is the most perfect solution or do you have other idea for the implementation?<br><br>Thanks!<br><br>Best, Szabolcs<o:p></o:p></p><div><p class=MsoNormal><span style='mso-fareast-font-family:"Times New Roman"'>-- <o:p></o:p></span></p><div><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Times New Roman",serif;mso-fareast-font-family:"Times New Roman";color:#333333'>Pintér Szabolcs Péter<o:p></o:p></span></b></p></div><div><p class=MsoNormal style='line-height:11.25pt'><span style='font-size:9.0pt;font-family:"Segoe UI",sans-serif;mso-fareast-font-family:"Times New Roman";color:#4B4B4B'>H-1117 Budapest, Neumann János u. 1. A épület 2. emelet<br>+36 1 489-4600 <br>+36 30 471-3827 <o:p></o:p></span></p></div><div><p class=MsoNormal style='line-height:11.25pt'><span style='font-size:9.0pt;font-family:"Arial",sans-serif;mso-fareast-font-family:"Times New Roman"'><a href="mailto:spinter@npsh.hu">spinter@npsh.hu</a><br><span style='mso-no-proof:yes'><img border=0 width=277 height=33 id="Picture_x0020_1" src="cid:image001.png@01D8CDEF.CB7BB6B0"></span><o:p></o:p></span></p></div></div></div></body></html>