MS SQL Server for Linux service goes inactive and stops responding - sql-server-2017

Ubuntu 18.04
MS SQL Server 2017
After a while sql server process goes inactive
"journalctl -u mssql-server.service -b"
does not show any errors
Jan 28 03:01:52 dobrovolskiy.com sqlservr[7723]: [73B blob data]
Jan 28 03:01:52 dobrovolskiy.com sqlservr[7723]: [146B blob data]
Jan 28 03:01:53 dobrovolskiy.com sqlservr[7723]: [73B blob data]
"systemctl status mssql-server "
shows
root#dobrovolskiy:/opt/mssql-tools/bin# systemctl status mssql-server
● mssql-server.service - Microsoft SQL Server Database Engine
Loaded: loaded (/lib/systemd/system/mssql-server.service; enabled; vendor preset: enabled)
Active: inactive (dead) since Mon 2019-01-28 04:01:21 +05; 19min ago
Docs: https://learn.microsoft.com/en-us/sql/linux
Process: 7723 ExecStart=/opt/mssql/bin/sqlservr (code=exited, status=0/SUCCESS)
Main PID: 7723 (code=exited, status=0/SUCCESS)

You can use
systemctl start mssql-server
to revive it but I'm not sure why it doesn't revive by itself.

Related

Cloudstack KVM installation failed

I'm installing cloudstack on ubuntu 20.04 by following this document.
I installed qemu-kvm and cloudstack-agent successfully but I'm not able to start libvirtd.service, on seeing the status I'm getting following errors
● libvirtd.service - Virtualization daemon
Loaded: loaded (/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Tue 2021-03-16 18:00:09 IST; 1min 28s ago
TriggeredBy: ● libvirtd-admin.socket
● libvirtd.socket
● libvirtd-ro.socket
Docs: man:libvirtd(8)
https://libvirt.org
Process: 232313 ExecStart=/usr/sbin/libvirtd $libvirtd_opts (code=exited, status=6)
Main PID: 232313 (code=exited, status=6)
Mar 16 18:00:09 host systemd[1]: libvirtd.service: Scheduled restart job, restart counter is at 5.
Mar 16 18:00:09 host systemd[1]: Stopped Virtualization daemon.
Mar 16 18:00:09 host systemd[1]: libvirtd.service: Start request repeated too quickly.
Mar 16 18:00:09 host systemd[1]: libvirtd.service: Failed with result 'exit-code'.
Mar 16 18:00:09 host systemd[1]: Failed to start Virtualization daemon.
on seeing the log of journalctl -xe it is showing cloudstack-usage.service: Failed with result 'exit-code'
can any one suggest what whould be the issue.
Are you trying this on a virtualised VM, or baremetal host, or on a raspberrypi? This means some other service hasn't started which libvirtd may depend on. See if you can run "systemctl daemon-reload" and try to start libvirtd manually "systemctl start libvirtd", and then try rest. The cloudstack-usage service can be started once the mysql server is running. If you've further questions I encourage you to join the CloudStack users mailing list and ask questions there - http://cloudstack.apache.org/mailing-lists.html
I got that same error message when following the official install guide when starting the mysql server. The problem was for me that [mysqld] was missing in the my.conf file before the config snippet. The documentation is misleading in that case (like the secion header is only relevant when editing that alternative mysql config file mentioned later there).

Apache2 crash on boot, but not when started manually

I got a wired problem that I don't understand at all:
I have a home server with an Apache2 installation on Ubuntu 18.04. My problem is that Apache2 keeps crashing on system reboot.
systemctl status apache2 gives me:
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: failed (Result: exit-code) since Sat 2020-05-23 13:42:31 CEST; 3min 52s ago
Process: 1183 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SUCCESS)
Main PID: 1224 (code=exited, status=1/FAILURE)
mai 23 13:42:30 potato-server systemd[1]: Starting The Apache HTTP Server...
mai 23 13:42:30 potato-server systemd[1]: Started The Apache HTTP Server.
mai 23 13:42:31 potato-server systemd[1]: apache2.service: Main process exited, code=exited, status=1/FAILURE
mai 23 13:42:31 potato-server systemd[1]: apache2.service: Failed with result 'exit-code'.
What's super weird is that when I do a manual sudo systemctl start apache2, the server starts. And apache2ctl configtest gives me:
Syntax OK
Any idea of where the problem can come from?
I got some updates:
It seems that my bug is due to that fact I changed the group and user of Apache2 in /etc/apache2/envvar, according to this post: https://www.simplified.guide/apache/change-user-and-group
If I change back user and user group to www-data, it works again. However I would like to run Apache2 from an other user than www-data. Is this possible ?

How to solve error restarting apache Ubuntu

Question originally posted in Spanish, on es.stackoverflow.com, by mnsperez97:
I have a problem with the connection to Apache, after restarting it
with the sudo service apache2 restart command, I get this error
Job for apache2.service failed because the control process exited with
error code. See "systemctl status apache2.service" and "journalctl
-xe" for details.
and then when entering localhost it does not let me in and it makes me
worse, when I run sudo journalctl -xe he told me the following but
still I do not find the error, if you could help me I would be very
grateful
EDIT: run the systemctl status apache2.service command and this
appears to me
apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: failed (Result: exit-code) since Thu 2019-10-17 12:20:34 -04; 29min ago
Process: 21198 ExecStop=/usr/sbin/apachectl stop (code=exited, status=1/FAILURE)
Process: 7385 ExecReload=/usr/sbin/apachectl graceful (code=exited, status=0/SUCCESS)
Process: 23453 ExecStart=/usr/sbin/apachectl start (code=exited, status=1/FAILURE)
Main PID: 1059 (code=exited, status=0/SUCCESS)
oct 17 12:20:34 pcarrasco systemd[1]: Starting The Apache HTTP Server...
oct 17 12:20:34 pcarrasco apachectl[23453]: AH00526: Syntax error on line 47 of /etc/apache2/sites-enabled/cms.local.conf:
oct 17 12:20:34 pcarrasco apachectl[23453]: order takes one argument, 'allow,deny', 'deny,allow', or 'mutual-failure'
oct 17 12:20:34 pcarrasco apachectl[23453]: Action 'start' failed.
oct 17 12:20:34 pcarrasco apachectl[23453]: The Apache error log may have more information.
oct 17 12:20:34 pcarrasco systemd[1]: apache2.service: Control process exited, code=exited status=1
oct 17 12:20:34 pcarrasco systemd[1]: apache2.service: Failed with result 'exit-code'.
oct 17 12:20:34 pcarrasco systemd[1]: Failed to start The Apache HTTP Server.
This is common due to problems in your configuration
it may be the port configuration
lock at the log file (pass can be found as ErrorLog in /etc/httpd/conf/httpd.conf)
or try to undo what you changed in the configuration files till you find the problem

Nginx and Solr server on port 8983 but can't access Admin area

Im running Nginx and I just installed solr.
Service status reports everythign is ok...
sudo service solr statusroot#closer:~# sudo service solr status
● solr.service - LSB: Controls Apache Solr as a Service
Loaded: loaded (/etc/init.d/solr; bad; vendor preset: enabled)
Active: active (exited) since Sat 2018-07-14 18:21:14 UTC; 1s ago
Docs: man:systemd-sysv-generator(8)
Process: 2549 ExecStop=/etc/init.d/solr stop (code=exited, status=0/SUCCESS)
Process: 2699 ExecStart=/etc/init.d/solr start (code=exited, status=0/SUCCESS)
Jul 14 18:21:08 closer solr[2699]: If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false in your profile or solr.in.sh
Jul 14 18:21:08 closer solr[2699]: *** [WARN] *** Your Max Processes Limit is currently 3896.
Jul 14 18:21:08 closer solr[2699]: It should be set to 65000 to avoid operational disruption.
Jul 14 18:21:08 closer solr[2699]: If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false in your profile or solr.in.sh
Jul 14 18:21:08 closer solr[2699]: Warning: Available entropy is low. As a result, use of the UUIDField, SSL, or any other features that require
Jul 14 18:21:08 closer solr[2699]: RNG might not work properly. To check for the amount of available entropy, use 'cat /proc/sys/kernel/random/entr
Jul 14 18:21:14 closer solr[2699]: [194B blob data]
Jul 14 18:21:14 closer solr[2699]: Started Solr server on port 8983 (pid=2751). Happy searching!
Jul 14 18:21:14 closer solr[2699]: [14B blob data]
Jul 14 18:21:14 closer systemd[1]: Started LSB: Controls Apache Solr as a Service.
but if I try to go to xxx.xxx.xxx.xxx:8983/solr
I can't access the page...why?
do i have to ufw port 8983?
do i have to start apache?
else?
It worked after
sudo ufw allow 8983
I can't believe all the online guides never mentioned it.

Apache not restarting, getting segmentation fault. Tried solutions but not working

I started my laptop after almost a month. Accessing localhost is giving me below error:
apache2.service - LSB: Apache2 web server
Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: inactive (dead) since Mon 2017-08-21 20:13:20 GST; 1min 9s ago
Docs: man:systemd-sysv-generator(8)
Process: 11127 ExecStop=/etc/init.d/apache2 stop (code=exited, status=0/SUCCESS)
Process: 11110 ExecStart=/etc/init.d/apache2 start (code=exited, status=0/SUCCESS)
Aug 21 20:13:20 user-HP-ProBook-6470b systemd[1]: Stopped LSB: Apache2 web server.
Aug 21 20:13:20 user-HP-ProBook-6470b systemd[1]: Starting LSB: Apache2 web server...
Aug 21 20:13:20 user-HP-ProBook-6470b apache2[11110]: * Starting Apache httpd web server apache2
Aug 21 20:13:20 user-HP-ProBook-6470b apache2[11110]: Segmentation fault
Aug 21 20:13:20 user-HP-ProBook-6470b apache2[11110]: Action 'start' failed.
Aug 21 20:13:20 user-HP-ProBook-6470b apache2[11110]: The Apache error log may have more information.
Aug 21 20:13:20 user-HP-ProBook-6470b apache2[11127]: * Stopping Apache httpd web server apache2
Aug 21 20:13:20 user-HP-ProBook-6470b apache2[11127]: *
Aug 21 20:13:20 user-HP-ProBook-6470b systemd[1]: Started LSB: Apache2 web server.
I am using Ubuntu 16.04 with following Apache2 version:
Server version: Apache/2.4.18 (Ubuntu)
Server built: 2016-07-14T12:32:26
I tried changing httpd.conf as mentioned in other articles, but that didn't helped and I still continue to get this error. Any help would be appreciated.