Category Archives: Troubleshooting

Various problems solutions

Linux: systemd-unit files edit, restart on failure and email notifications
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1 March 2019

We have a RabbitMQ service which sometimes can go down. So need to: restart it if is exited with the failure send an email notification Let’s do it via RabbitMQ’s systemd service (though there are various options, e.g. using the monit, check the Monit: мониторинг и перезапуск NGINX post). Will use two options here: RestartSec=: delay… Read More: Linux: systemd-unit files edit, restart on failure and email notifications0… »

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Linux: ALSA lib pcm_dmix.c:1108:(snd_pcm_dmix_open) unable to open slave
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28 February 2019

Have a fresh Arch Linux system setup. After some Viber’s fixes (see the Viber: no connection – qt.network.ssl: Incompatible version of OpenSSL post) – sound system sometimes stops working. It looks like next: run qmmp, press Play and: [simterm] … DecoderMAD: Fixed rate detected DecoderMAD: Total time: 297900 ReplayGain: disabled Dithering: disabled ALSA lib pcm_dmix.c:1108:(snd_pcm_dmix_open) unable… Read More: Linux: ALSA lib pcm_dmix.c:1108:(snd_pcm_dmix_open) unable to open slave0 (0) »

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Viber: no connection – qt.network.ssl: Incompatible version of OpenSSL
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27 February 2019

On a fresh Arch Linux setup – Viber starting, but during authorization – can’t connect to the network. In general – Viber’s desktop version is really limited but anyway it’s better then use it from a cell. Tried to google few times as I didn’t found the error in messages to use exactly in google’s… Read More: Viber: no connection – qt.network.ssl: Incompatible version of OpenSSL0 (0) »

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Arch Linux: installing with EFI and Windows dual-boot
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24 February 2019

The goal is to set up a new Arch Linux and Windows (just for some games) on my new PC and use dual-boot using GRUB. Disks Currently disks layout is next: [simterm] [root@archiso ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 476.7M 1 loop /run/archiso/sfs/airootfs sda 8:0 0 223.6G 0 disk… Read More: Arch Linux: installing with EFI and Windows dual-boot0 (0) »

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Arch Linux: grub-mkconfig hangs on the /boot/grub/grub.cfg config generation
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23 February 2019

During new Arch Linux set up grub-mkconfig suddenly hangs on creating new /boot/grub/grub.cfg. No warnings, no errors. Thanks to this>>> googled discussion – it worked for me. So the issue looks like next: [simterm] [root@archiso boot]# grub-mkconfig -o /boot/grub/grub.cfg ^C [/simterm] Check the /usr/bin/grub-mkconfig script for every /dev/null redirects: [simterm] [root@archiso boot]# cat /usr/bin/grub-mkconfig |… Read More: Arch Linux: grub-mkconfig hangs on the /boot/grub/grub.cfg config generation0 (0) »

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Viber: Linux – Qt WebEngine resources not found
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20 February 2019

After latest packages upgrade on my Arch Linux workstation – Viber stopped working. Found a few solutions, but the only one really solved the issue. The errors during Viber start looks like next: [simterm] $ viber Qt WebEngine ICU data not found at /opt/viber/resources. Trying parent directory… Qt WebEngine resources not found at /opt/viber/resources. Trying… Read More: Viber: Linux – Qt WebEngine resources not found0 (0) »

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Grafana Labs: Loki – using AWS S3 as a data storage and AWS DynamoDB for indexes
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13 February 2019

Let’s proceed with the Loki system. First post of this series – Grafana Labs: Loki – logs collecting and monitoring system and the second one – Grafana Labs: Loki – distributed system, labels and filters. There is the Grafana’s Slack community with the dedicated #loki channel where you can ask for some assist (and it’s really helpful).… Read More: Grafana Labs: Loki – using AWS S3 as a data… »

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