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Questions tagged [systemd-journald]

journald is part of systemd and responsible for collecting system logs

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Log all scp transfers with systemd-journald

Does systemd-jurnald log incoming scp connections and what file they copied to what place? I would either like to access these logs or change the config so all of these file transfers are logged.
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16 views

journald to rsyslog paging issues

I'm using rsyslog to dump journald entries to a log file so that they can be sent to Logstash. The issue I'm having is that some of the log lines are getting split across two lines. When viewing ...
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Why do “journalctl --disk-usage” and “journalctl | wc” not correspond well?

TL;DR how comes that journald stores about 770 MiB while displaying the logs only yields 90MiB of data? #UPDATE# I did a journalctl -a -o verbose which at least yielded some 530MiB, yet less than ...
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1answer
26 views

Error starting service in Ubuntu 16.04:

I have created a systemd unit file like this: [Unit] Description=Menu Core Prices Update Daemon After=network.target [Service] Environment="APP_CP=/opt/menu/menu-core-price-update" Environment="...
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0answers
35 views

Systemd showing partial output in the logs

I want to have output output of iostat printed periodically and logged. Executing the command in the shell prints out the normal fields as expected: # iostat avg-cpu: %user %nice %system %iowait ...
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38 views

Remove single line from journalctl file

I have an Ubuntu 18.04 server that is running a service I'm developing. The output is being sent to the system journal for logging. I accidentally failed to sanitize some logging and a plaintext ...
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40 views

Starting as a systemd service, no journal files were found. Cannot start service

i have recently downloaded and installed node-red on my rp1 via the bash command as suggested in their docs. I run raspbian Jessie. I want to run 2 services at the same time.The first service is a ...
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12 views

systemd-journal-remote with https always looks for SSL CA

I'm setting up remote logging with systemd. systemd-journal-remote has been set on the server (which will receive the logs) and systemd-journal-upload on the client side. The initial setup was done ...
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1answer
54 views

Which one should I choose for log management, systemd-journald or rsyslog?

We have both systemd-journald and rsyslog running on our linux box, and we have to make a decision bewteen these two for managing our application logs. From what we've known (please correct me if I'm ...
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56 views

Fail to mount an external disk on Debian

I have a Debian 8 server with an external disk attached $ sudo lsblk --fs NAME FSTYPE LABEL UUID MOUNTPOINT sda ext4 7169e849-0d6d-4094-b0f7-...
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1answer
115 views

systemd.service : use pty so force flush of stdout?

I have a service that I want to run under systemd. It is written in perl, where by default output is line buffered if STDOUT is connected to a terminal. (Which seems similar to python) The ...
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1answer
34 views

redundant systemd-journal-remote for systemd-journal-upload instances

I'm using systemd-journal-upload on serveral nodes to forward their journals to a single systemd-journal-remote sink, loghost01: /var/log/journal ├── <foo-bar> │ ├── system.journal │ └── ...
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45 views

Specify a systemd unit for cronjob

When I run a cronjob, it's nice being able to follow its logs. If I want to see all logs from cron with journalctl, I can select the cron unit (journalctl -u cron). But when I have multiple cronjobs, ...
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1answer
176 views

What does “org.gnome.Shell.desktop[1711]: ” mean in the systemd journal?

$ journalctl -b ... Mar 23 18:18:50 alan-laptop pkexec[31408]: pam_unix(polkit-1:session): session opened for user root by (uid=1001) Mar 23 18:19:47 alan-laptop org.gnome.Shell.desktop[1711]: ...
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2answers
97 views

systemd DynamicUser= services v.s. journald splits

systemd-journald has the default config SplitMode=uid, to create individual journal (log) files for each user, which they are allowed to read. When running services with DynamicUser=, does this mean ...
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215 views

Bypass systemd-journald to send messages directly to ryslog daemon

As a follow-up of my earlier question Prevent syslogs from being logged under journalctl, and this wonderful JdeBP's answer I want to know how do I bypass systemd-journald to send syslog messages ...
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1answer
627 views

Safe to clear files in /run/log/journal CentOS 7.4

There a log entries on my CentOS 7.4 server in /run/log/journal/ that are up to 1.3GB. IS it safe to clear the older files out? [root@fbds journal]# pwd /run/log/journal [root@fbds journal]# ll ...
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178 views

systemd-journald: Missed 685 kernel messages

At boot and some other times I see missed kernel logs on my system. After that I set Rate limits at jornald.conf but no luck. I still have the issue. Do you have any advice? Kernel: 4.14.19-1-lts ...
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115 views

How to configure journald to discard entries older than a certain time span

From the documentation I know that I can configure the time after which journal files are deleted via MaxRetentionSec. the time after which journal files are rotated via MaxFileSec. However my goal ...
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595 views

tmpfs /run full

I have a problem with /run partition, its size NEVER decrease so when it's full, I have to reboot. [root@centos]# df -H Filesystem Size Used Avail Use% Mounted on ... tmpfs 6.4G 6.3G ...
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3answers
1k views

Redirecting stderr and stdout separately to a function in a bash script

I'm working on a wrapper script to log cronjob output to journald. I have several goals: must log stderr and stdout to journald with different priority levels and prefix-tags must also output stderr ...
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2answers
242 views

How to make journald increase logs storage capacity?

I would like to have persistent logs via journald. I created /var/log/journal and reloaded the service. Now logs are saved on the disk. But the log size limit is low. I added /etc/systemd/journald....
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1answer
423 views

Why journalctl does not display log message if I use filtering by unit?

I'm using Ubuntu 16.04 and I am seeing some strange behavior when analyzing journalctl logs. Here's unfiltered output (I used json output to hopefully include all relevant fields): $ journalctl -o ...
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1answer
299 views

Prevent syslogs from being logged under journalctl

I have a simple Python snippet managed by a systemd service which logs to the rsysogd daemon where I've defined a configuration file to put it to a syslog server with a format I've defined. This is ...
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220 views

systemd-journald missing crash logs

I am running Arch-ARM on RPi3. I have noticed when system crashes I cannot find any related crash log in journal logs. Arch Linux ARM on RPi3: Linux 4.4.37-1-ARCH #1 SMP armv7l GNU/Linux Systemd: ...
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3answers
2k views

Can I mask the systemd-journal-flush service and run journalctl --flush later manually?

On my archlinux installation, I realised that flushing the journal logs to disk by the systemd-journal-flush service significantly prolongs the boot process and masking the service improves boot time. ...
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165 views

What causes `Unsupported device type 772 for “lo”`?

Rebooted a RPi, and upon return, I could not access the device's static IP. The cause was Unsupported device type 772 for "lo". michael@pi3:~ $ sudo journalctl -u networking [sudo] password for ...
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1answer
147 views

How to install systemd-journal-gatewayd

How do I install systemd-journal-gatewayd on a raspberry pi? https://www.freedesktop.org/software/systemd/man/systemd-journal-gatewayd.service.html stretch michael@stetch:~ $ sudo apt-get install ...
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30 views

Journald middleware

ufw in debian generates iptables rules and also manages logging of packets blocked by those rules, but the generated messages go into kernel unit when logged with journald. Are there any ways to ...
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1answer
227 views

journald for systemd user services

I'm running a lot of stuff using systemd's user-level service management. So far it's been great being able to take advantage of timers, conditional services, etc. but one thing that is sorely lacking ...
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1answer
458 views

Why `journalctl --list-boots` doesn't match what `uptime` and `who -b` report?

Here's a test script I used: last_reboot=$(last reboot | grep 'still running' | awk '{for (i=5; i<=NF; i++) printf $i FS}' | awk '{for (i=1; i<=NF - 2; i++) printf $i FS}') if [ "$last_reboot" ]...
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1answer
671 views

Distinguishing levels in journalctl

Can I somehow make journalctl print log levels next to actual messages? I have found the -p option but that is not what I'm looking for, I want to see both errors and warnings but I want to be able ...
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0answers
64 views

Why journalctl outputs in ASCII?

I have a regular Ubuntu 16.04 server VM. My locale is set up to utf-8 everywhere: $ locale LANG=en_US.UTF-8 LANGUAGE= LC_CTYPE="en_US.UTF-8" LC_NUMERIC="en_US.UTF-8" LC_TIME="en_US.UTF-8" LC_COLLATE="...
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1answer
565 views

Use systemd watchdog support to restart application

I have a simple systemd service unit to restart my python script on unconditional exits so defined Restart=always in the service definition. I just want to absolutely make sure even if the script ...
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1answer
558 views

How to get logs from Docker with journald driver?

OpenSuse Tumbleweed + Docker 17.04. I created /etc/docker/daemon.json with: { "log-driver": "journald", "log-opts": { "labels": "my_test", "env": "os,customer" } } ...
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388 views

How to read from the systemd-journald.socket?

To my understanding systemd-journald creates a couple sockets, where it posts its logging events. # systemctl cat systemd-journald.socket | egrep -v '^ *#' [Unit] Description=Journal Socket ...
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1answer
175 views

How to journal command after sudo?

How to configure Linux to journal all command entered by a user after they use sudo su - or sudo su - username ?
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80 views

flink systemctl faild to start

Hi i want to create systemctl service to tun flink local server . I can run it directly from the /bin/start-local.sh But when im using this service definition . [Unit] Description=Apache Flink ...
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2answers
2k views

“systemd-journald: Received SIGTERM from PID 1 (systemd)” will cause linux restart?

I find a machine reboot , and find the last log message is : systemd-journald: Received SIGTERM from PID 1 (systemd). Anybody see this problem ? Will this make machine reboot? OS version: rhel7.2 ...
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1answer
95 views

Default Interactive TTY prints daemon output

I work for a company that deploys clustered products using coreos and docker, and as part of our deployment, we automatically start up a few docker containers to expose, among others, a web interface ...
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1answer
200 views

The simple but correct way to have a bash script send output to systemd journal?

I have simply been sticking something like this at the top of my bash scripts. This still works with systemd. (I have used it for a long time and I don't fully understand it. It just works, so I use ...
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1answer
219 views

Prevent Journald writing to /var/log

Is it possible to configure journald not to write entries to /var/log/messages on Centos? I tried by setting ForwardToSyslog=no in /etc/systemd/journald.conf: CentOS Linux release 7.3 systemd 219
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0answers
459 views

systemd-journald with volatile /var/log (poky)

I'm trying to make my journal persistent. Poky (yocto/krogoth) links /var/log to /var/volatile/log by default. I've already removed this mount in fstab and replaced it with an .mount file: [Unit] ...
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2answers
112 views

Relation between systemd service names and journald entries

Example [from Ubuntu 17.04] The service is known as network-manager by systemd. $ systemctl list-unit-files | grep network network-manager.service enabled Looking for log ...
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1answer
250 views

journalctl shows very old boots which are not recycled

The system has very old boots (2 and 3 years old), which are not recycled and I haven't been able to vacuum them: $ journalctl --list-boots --no-pager -16 53baf678f0d749d6b390afea4a3ef96b Wed 2014-04-...
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1answer
861 views

Reloading systemd-journald config

Not sure why this is happening. I have a test service logging some arbitrary text to stdout every 10 seconds. Here is my service file /etc/systemd/system/samplego.service: [Unit] Description=Sample ...
2
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1answer
460 views

Does journalctl give access to all logs?

I know that this question may seems stupid for some of you, but I am a little bit confused about it, and I would like to have an answer. So, in my university we studied about rsyslog, and how it ...
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0answers
35 views

Can systemd-journald use network to transmit?

I use systemd-journald and forwards the log messages to rsyslog on my centos host , and then use rsyslog transmit on network . So, Can systemd-journald transmit log message use network?
2
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1answer
28 views

Systemd logs only 3 lines of errors

I have an error when running command assert.js:81 throw new assert.AssertionError({ ^ AssertionError: APP_API env var not set at Object.<anonymous> (/opt/offero-html-server/src/routes/...
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3answers
6k views

How do I see when a systemd service was started/stopped/restarted?

I have a service (written by myself) running on a Debian (Jessie) server, and the service's own logs happen to indicate that it restarted at a particular time. There is no indication of a segfault or ...