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<w:LsdException Locked="false" Priority="52" Name="List Table 7 Colorful Accent 4"/>
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<o:shapedefaults v:ext="edit" spidmax="1026" />
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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 Ronny,<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'>First to make the data more readable use a top snapshot to illustrate the memory usage.<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'>Second, use Squid 5.6 and not 5.2<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'>The issue is not <span class=GramE>necessarily<span dir=RTL></span><span dir=RTL></span><span dir=RTL style='font-family:"Arial",sans-serif;mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri'><span dir=RTL></span><span dir=RTL></span> </span><span dir=LTR></span><span dir=LTR></span><span dir=LTR></span><span dir=LTR></span><span style='mso-spacerun:yes'> </span>because</span> of the Squid version but other things.<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'>We should narrow down the issues as any other Squid issue.<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'>First upgrade to 5.6 and then we need the top snapshot.<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'>After that we need snapshots of cache-manager pages.<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'>To dump snapshots of the cache manager pages you can use the next script:<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'><a href="https://gist.githubusercontent.com/elico/8790bdc835d8e9ecbc57e72fc31effc0/raw/60d140b0e772fa4f418779bfc27e4804a345ce23/dump-cache-mgr-to-file.sh">https://gist.githubusercontent.com/elico/8790bdc835d8e9ecbc57e72fc31effc0/raw/60d140b0e772fa4f418779bfc27e4804a345ce23/dump-cache-mgr-to-file.sh</a><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 am using it like this:<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'>/usr/local/bin/dump-cache-mgr-to-file.sh 2>&1 | tee “<span class=SpellE>cachemg</span>-data$(date +%Y-%m-%<span class=SpellE>d_%H</span>-%M-%S)”<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'>Try to take couple dumps with 4.1 and 5.6 (if you want 5.2 also) and upload the snapshots to somewhere in a zip file.<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'>Just take into account that these snapshots may contains confidential data so you are advised to review them and deduct specific<br>parts of them before making them public.<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'>Just an advice,<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'>A machine that should handle “</span><span class=SpellE>max_filedescriptors</span> 40960<span lang=EN-US style='mso-ansi-language:EN-US'>” <span class=SpellE><span class=GramE>ie</span></span> above 16k should have more RAM <span class=SpellE>ie</span> 8-16 GB as a starter.<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'>All The Bests,<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><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><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 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>Ronny Preiss<br><b>Sent:</b> Monday, 11 July 2022 9:55<br><b>To:</b> squid-users@lists.squid-cache.org<br><b>Subject:</b> [squid-users] Sqid uses all RAM / killed by OOM<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><p class=MsoNormal>Hello all,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I have the following problem with squid 5.2 on ubuntu 22.04.<o:p></o:p></p></div><div><p class=MsoNormal>Squid consumes all ram and the entire SWAP. When swap and ram are completely full, the OOM killer strikes and terminates the process.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>We use three internal child proxy servers with keepalived and haproxy as load balancers. From our ISP we use a parent upstream proxy for external internet traffic.<o:p></o:p></p></div><div><p class=MsoNormal>As an operating system we have so far Ubuntu 20.04.4 with squid 4.1 in use. This constellation works flawlessly.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Now I want to update the Server to Ubuntu 22.04 and squid 5.2. But with Ubuntu 22.04 and squid 5.2 the above mentioned problem with the OOM Killer occurs.<o:p></o:p></p></div><div><p class=MsoNormal>The new machine has only the OS and squid installed.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Who can help me with a solution?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>With kind regards<o:p></o:p></p></div><div><p class=MsoNormal>Ronny<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Attached the squid configuration and the VMWare specs.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>### VM Specs ###<o:p></o:p></p></div><div><p class=MsoNormal>OS: Ubuntu 22.04 Server<o:p></o:p></p></div><div><p class=MsoNormal>CPU: 4x (Intel(R) Xeon(R) CPU E5-2690 v3 @ 2.60GHz)<o:p></o:p></p></div><div><p class=MsoNormal>RAM: 4 GB<o:p></o:p></p></div><div><p class=MsoNormal>VMWare: ESXi 7.0 U2<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>### CONFIG ###<o:p></o:p></p></div><div><p class=MsoNormal>acl <a href="http://10.172.128.0/18" target="_blank">10.172.xxx.xxx/18</a> src <a href="http://10.172.128.0/18" target="_blank">10.172.xxx.xxx/18</a><o:p></o:p></p></div><div><div><p class=MsoNormal>acl <a href="http://172.16.0.0/12" target="_blank">172.16.xxx.xxx/12</a> src <a href="http://172.16.0.0/12" target="_blank">172.16.xxx.xxx/12</a><o:p></o:p></p></div><div><p class=MsoNormal>acl <a href="http://192.168.0.0/16" target="_blank">192.168.xxx.xxx/16</a> src <a href="http://192.168.0.0/16" target="_blank">192.168.xxx.xxx/16</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 80<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 21<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 443<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 70<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 210<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 1025-65535<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 280<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 488<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 591<o:p></o:p></p></div><div><p class=MsoNormal>acl Safe_ports port 777<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>http_access allow <a href="http://10.172.128.0/18" target="_blank">10.172.xxx.xxx/18</a> Safe_ports<o:p></o:p></p></div><div><p class=MsoNormal>http_access allow <a href="http://172.16.0.0/12" target="_blank">172.16.xxx.xxx/12</a> Safe_ports<o:p></o:p></p></div><div><p class=MsoNormal>http_access allow <a href="http://192.168.0.0/16" target="_blank">192.168.xxx.xxx/16</a> Safe_ports<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>http_access allow localhost manager<o:p></o:p></p></div><div><p class=MsoNormal>http_access allow localhost<o:p></o:p></p></div><div><p class=MsoNormal>http_access deny manager<o:p></o:p></p></div><div><p class=MsoNormal>http_access deny all<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>include /etc/squid/conf.d/*<o:p></o:p></p></div></div><div><div><p class=MsoNormal>http_port <a href="http://10.172.128.34:3128" target="_blank">10.172.xxx.xxx:3128</a><o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>cache_peer 10.210.xxx.xxx parent 8080 0<o:p></o:p></p></div><div><p class=MsoNormal>cache_dir ufs /var/spool/squid 3000 16 256<o:p></o:p></p></div><div><p class=MsoNormal>cache_effective_user proxy<o:p></o:p></p></div><div><p class=MsoNormal>cache_effective_group proxy<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>coredump_dir /var/spool/squid<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>refresh_pattern ^ftp: 1440 20% 10080<o:p></o:p></p></div><div><p class=MsoNormal>refresh_pattern ^gopher: 1440 0% 1440<o:p></o:p></p></div><div><p class=MsoNormal>refresh_pattern -i (/cgi-bin/|\?) 0 0% 0<o:p></o:p></p></div><div><p class=MsoNormal>refresh_pattern \/(Packages|Sources)(|\.bz2|\.gz|\.xz)$ 0 0% 0 refresh-ims<o:p></o:p></p></div><div><p class=MsoNormal>refresh_pattern \/Release(|\.gpg)$ 0 0% 0 refresh-ims<o:p></o:p></p></div><div><p class=MsoNormal>refresh_pattern \/InRelease$ 0 0% 0 refresh-ims<o:p></o:p></p></div><div><p class=MsoNormal>refresh_pattern \/(Translation-.*)(|\.bz2|\.gz|\.xz)$ 0 0% 0 refresh-ims<o:p></o:p></p></div><div><p class=MsoNormal>refresh_pattern . 0 20% 4320<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>never_direct allow all<o:p></o:p></p></div><div><p class=MsoNormal>max_filedescriptors 40960<o:p></o:p></p></div><div><p class=MsoNormal>dns_nameservers 10.244.xxx.xxx<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>### DMESG ###<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>[256929.150801] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/system.slice/squid.service,task=squid,pid=26390,uid=13<o:p></o:p></p></div><div><p class=MsoNormal>[256929.150822] Out of memory: Killed process 26390 (squid) total-vm:9691764kB, anon-rss:3657748kB, file-rss:2320kB, shmem-rss:0kB, UID:13 pgtables:18932kB oom_score_adj:0<o:p></o:p></p></div><div><p class=MsoNormal>[256929.510641] oom_reaper: reaped process 26390 (squid), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></body></html>