We are trying to use some Looker features that utilize the chromium-browser, like downloading a PDF or PNG. However, when we choose to download something, a chromium-browser process starts to render the PDF, and the process never finishes.
When we show the process-list, with hierarchy, we can see the processes running (they have --type=renderer) but it always times out. See below:
root@d78a8793f6e7:/# ps aux -He
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 22282 0.0 0.0 18644 3424 pts/1 Ss+ 19:02 0:00 bash
root 19357 0.0 0.0 18632 3488 pts/0 Ss 18:41 0:00 bash
root 30647 0.0 0.0 34408 2888 pts/0 R+ 19:57 0:00 ps aux -He
root 1 0.8 0.0 55268 20192 ? Ss May17 11:09 /usr/bin/python /usr/local/bin/supervisord -c /supervisord.conf
root 8 0.0 0.0 4632 792 ? S May17 0:00 /bin/sh /looker-start.sh
root 10 0.0 0.0 4632 1712 ? S May17 0:00 /bin/sh /looker_java1.8 start
root 44 120 66.4 47103724 43241756 ? Sl May17 1535:02 java -XX:+UseG1GC -XX:MaxGCPauseMillis=2000 -XX:MaxMetaspaceSize=800m -Xms39029899k -Xmx39029899k -verbose:gc -XX:+PrintGCD
root 27582 0.0 0.1 1679116 91436 ? Sl 19:36 0:00 /usr/lib/chromium-browser/chromium-browser --enable-pinch --no-sandbox --remote-debugging-port=40243 --headless --hide-scr
root 27589 0.0 0.0 417396 50796 ? S 19:36 0:00 /usr/lib/chromium-browser/chromium-browser --type=zygote --no-zygote-sandbox --no-sandbox --headless --force-device-scal
root 27606 0.0 0.0 1641032 57356 ? Sl 19:36 0:00 /usr/lib/chromium-browser/chromium-browser --type=gpu-process --no-sandbox --disable-logging --headless --ozone-platfo
root 27590 0.0 0.0 417400 50648 ? S 19:36 0:00 /usr/lib/chromium-browser/chromium-browser --type=zygote --no-sandbox --headless --force-device-scale-factor=1 --headles
root 27608 0.0 0.1 26748176 67832 ? Sl 19:36 0:00 /usr/lib/chromium-browser/chromium-browser --type=renderer --headless --lang=en-US --no-sandbox --disable-logging --fo
root 27683 0.0 0.1 26959688 120444 ? Sl 19:36 0:01 /usr/lib/chromium-browser/chromium-browser --type=renderer --headless --no-sandbox --disable-logging --force-device-sc
root 27607 0.0 0.1 1011564 67408 ? Sl 19:36 0:00 /usr/lib/chromium-browser/chromium-browser --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US -
root 28051 0.0 0.1 1612168 89216 ? Sl 19:38 0:00 /usr/lib/chromium-browser/chromium-browser --enable-pinch --no-sandbox --remote-debugging-port=40237 --headless --hide-scr
root 28058 0.0 0.0 417396 50512 ? S 19:38 0:00 /usr/lib/chromium-browser/chromium-browser --type=zygote --no-zygote-sandbox --no-sandbox --headless --force-device-scal
root 28074 0.0 0.0 1567336 57776 ? Sl 19:38 0:00 /usr/lib/chromium-browser/chromium-browser --type=gpu-process --no-sandbox --disable-logging --headless --ozone-platfo
root 28059 0.0 0.0 417400 50800 ? S 19:38 0:00 /usr/lib/chromium-browser/chromium-browser --type=zygote --no-sandbox --headless --force-device-scale-factor=1 --headles
root 28076 0.0 0.1 26748144 67688 ? Sl 19:38 0:00 /usr/lib/chromium-browser/chromium-browser --type=renderer --headless --lang=en-US --no-sandbox --disable-logging --fo
root 28142 0.0 0.1 26959416 118628 ? Sl 19:38 0:00 /usr/lib/chromium-browser/chromium-browser --type=renderer --headless --no-sandbox --disable-logging --force-device-sc
root 28075 0.0 0.1 1011564 65396 ? Sl 19:38 0:00 /usr/lib/chromium-browser/chromium-browser --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US -
The one kernel of relevant information we were able to find was in dpkg.log from last week where it looks like Looker automatically tried to update chromium. We are unsure if these logs resemble a successful load, but we are pretty sure this is when the problems started happening.
./dpkg.log:2022-05-09 20:21:57 install chromium-codecs-ffmpeg-extra:amd64 <none> 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:21:57 status half-installed chromium-codecs-ffmpeg-extra:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:21:57 status unpacked chromium-codecs-ffmpeg-extra:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:21:57 status unpacked chromium-codecs-ffmpeg-extra:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:21:57 install chromium-browser:amd64 <none> 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:21:57 status half-installed chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:02 status unpacked chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:02 status unpacked chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:02 install chromium-browser-l10n:all <none> 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:02 status half-installed chromium-browser-l10n:all 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:03 status unpacked chromium-browser-l10n:all 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:03 status unpacked chromium-browser-l10n:all 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 configure chromium-codecs-ffmpeg-extra:amd64 100.0.4896.127-0ubuntu0.18.04.1 <none>
./dpkg.log:2022-05-09 20:22:04 status unpacked chromium-codecs-ffmpeg-extra:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status half-configured chromium-codecs-ffmpeg-extra:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status installed chromium-codecs-ffmpeg-extra:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 configure chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1 <none>
./dpkg.log:2022-05-09 20:22:04 status unpacked chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status unpacked chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status unpacked chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status unpacked chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status half-configured chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status installed chromium-browser:amd64 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 configure chromium-browser-l10n:all 100.0.4896.127-0ubuntu0.18.04.1 <none>
./dpkg.log:2022-05-09 20:22:04 status unpacked chromium-browser-l10n:all 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status half-configured chromium-browser-l10n:all 100.0.4896.127-0ubuntu0.18.04.1
./dpkg.log:2022-05-09 20:22:04 status installed chromium-browser-l10n:all 100.0.4896.127-0ubuntu0.18.04.1