Run docker with the latest version discourse-docker, Mem: 2GB, 3 unicorn thread. There tons of log error as below. I, [2019-12-17T22:44:47.722151 #19487] INFO -- : listening on addr=0.0.0.0:3000 fd=13 I, [2019-12-17T22:44:53.036892 #19487] INFO -- : master process ready I, [2019-12-17T22:44:55.704154 #19587] INFO -- : worker=0 ready I, [2019-12-17T22:44:56.644984 #19594] INFO -- : worker=1 ready I, [2019-12-17T22:44:57.595814 #19601] INFO -- : worker=2 ready I, [2019-12-18T05:12:51.517167 #19487] INFO -- : reaped # worker=0 I, [2019-12-18T05:12:52.533342 #19487] INFO -- : reaped # worker=1 Detected dead worker 19563, restarting... I, [2019-12-18T05:12:53.551518 #19487] INFO -- : reaped # worker=2 I, [2019-12-18T05:12:59.062671 #11689] INFO -- : worker=1 ready I, [2019-12-18T05:12:59.063307 #11680] INFO -- : worker=0 ready I, [2019-12-18T05:12:59.360555 #11706] INFO -- : worker=2 ready WARNING: V8 isolate was forked, it can not be disposed and memory will not be reclaimed till the Ruby process exits. WARNING: V8 isolate was forked, it can not be disposed and memory will not be reclaimed till the Ruby process exits. WARNING: V8 isolate was forked, it can not be disposed and memory will not be reclaimed till the Ruby process exits. WARNING: V8 isolate was forked, it can not be disposed and memory will not be reclaimed till the Ruby process exits. WARNING: V8 isolate was forked, it can not be disposed and memory will not be reclaimed till the Ruby process exits. WARNING: V8 isolate was forked, it can not be disposed and memory will not be reclaimed till the Ruby process exits. WARNING: V8 isolate was forked, it can not be disposed and memory will not be reclaimed till the Ruby process exits. WARNING: V8 isolate was forked, it can not be disposed and memory will not be reclaimed till the Ruby process exits. D, [2019-12-18T05:13:23.583306 #19487] DEBUG -- : waiting 16.0s after suspend/hibernation I, [2019-12-18T05:13:44.194692 #19487] INFO -- : reaped # worker=0 I, [2019-12-18T05:13:44.194960 #19487] INFO -- : reaped # worker=1 I, [2019-12-18T05:13:44.195054 #19487] INFO -- : reaped # worker=2 I, [2019-12-18T05:13:44.195120 #19487] INFO -- : master complete I, [2019-12-18T05:13:45.760881 #11795] INFO -- : Refreshing Gem list Any one have the same issue?

Pretty old kernel in there, can you run on something a bit more modern? Pretty old docker version in there, can you update to a supported version? You are running a web_only container, which will use even less memory than a standalone one. That said, you are running a bunch of custom plugins, who may or not be allocating too much memmory. Check your OS swapiness, it may be too low. Your unicorn is reaped. Hard to know why without more logs… Do your custom plugins make requests to outside systems inline? Maybe it’s just timing out? There are way too many variables in here distancing this from a simple install, so I’d try to reduce those first.

[image] Falco: unofficial Thank you for reply. the server run sidekiq and discourse only.

Can you please run: cd /var/discourse ./discourse-doctor And share the URL with us?

@Falco Many thanks, Here are the doctor results: DISCOURSE DOCTOR Fri Dec 20 03:42:31 UTC 2019 OS: Linux int-communityweb-01w.our-internal-domain 3.10.0-1062.7.1.el7.x86_64 #1 SMP Mon Dec 2 17:33:29 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux YML=web_only.yml Found containers/web_only.yml ==================== YML SETTINGS ==================== DISCOURSE_HOSTNAME=int-communityweb-vip.our-internal-domain SMTP_ADDRESS=our_smtp_server # (mandatory) DEVELOPER_EMAILS=REDACTED SMTP_PASSWORD=REDACTED (optional) SMTP_PORT=25 # (optional) SMTP_USER_NAME=# (optional) LETSENCRYPT_ACCOUNT_EMAIL=REDACTED ==================== DOCKER INFO ==================== DOCKER VERSION: Docker version 17.05.0-ce, build 89658be DOCKER PROCESSES (docker ps -a) CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e6c7024d0d4b artifacts.our-internal-domain:8080/image/community:99-2.0.20191013-2320-tests-passed-b6b05d3b48-2019-12-16_09-28 "/sbin/boot" 43 hours ago Up 43 hours 0.0.0.0:80->80/tcp web_only 703de08548b0 artifacts.our-internal-domain:8080/image/community:90-2.0.20190625-0946-tests-passed-ac7d68a-2019-08-30_09-36 "/sbin/boot" 4 weeks ago Exited (5) 46 hours ago web_only_bak Discourse container web_only is running ==================== PLUGINS ==================== - git clone https://github.com/discourse/docker_manager.git - git clone https://gitlab.our-internal-domain/community/community-sso-plugin.git - git clone https://gitlab.our-internal-domain/community/community-ads-plugin.git - git clone --branch upgarde-newrelic-gem https://gitlab.our-internal-domain/community/community-newrelic-plugin.git WARNING: You have what appear to be non-official plugins. If you are having trouble, you should disable them and try rebuilding again. See https://github.com/discourse/discourse/blob/master/lib/plugin/metadata.rb for the official list. ======================================== Discourse version at int-communityweb-vip.our-internal-domain: Discourse 2.4.0.beta8 Discourse version at localhost: Discourse 2.4.0.beta8 ==================== MEMORY INFORMATION ==================== OS: Linux RAM (MB): 1882 total used free shared buff/cache available Mem: 1838 1340 66 7 430 306 Swap: 3071 388 2683 ==================== DISK SPACE CHECK ==================== ---------- OS Disk Space ---------- Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg00-root 19G 15G 3.3G 82% / /dev/mapper/vg00-root 19G 15G 3.3G 82% /var/lib/docker/overlay /dev/mapper/vg00-root 19G 15G 3.3G 82% / ---------- Container Disk Space ---------- ==================== DISK INFORMATION ==================== Disk /dev/sda: 21.5 GB, 21474836480 bytes, 41943040 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk label type: dos Disk identifier: 0x0005c8ec Device Boot Start End Blocks Id System /dev/sda1 * 2048 1050623 524288 83 Linux /dev/sda2 1050624 16777215 7863296 8e Linux LVM /dev/sdimage 16777216 41943039 12582912 8e Linux LVM Disk /dev/mapper/vg00-root: 19.9 GB, 19851640832 bytes, 38772736 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk /dev/mapper/vg00-swap: 1073 MB, 1073741824 bytes, 2097152 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes ==================== END DISK INFORMATION ==================== ==================== MAIL TEST ==================== For a robust test, get an address from http://www.mail-tester.com/ Mail test skipped. ==================== DONE! ====================

@Falco Thanks, I will add more memory for this. For the kernel and docker upgrade related, will talk to SE team to made the decision. Merry Christmas. :dizzy:

Discourse-docker run with unicorn memory issue

Product Support Self-hosting

Falco (Falco) December 20, 2019, 3:17am 2

Are you running any unofficial plugin? Or running anything else in the server? 2GB should be more than enough…

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Discourse-docker run with unicorn memory issue

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