Ever needed to migrate data between Redis instances? Give RIOT - Redis Input/Output Tools a try. It supports migration to different...
There are different kind of memory measurement metrics in Linux. These are the differences: Code Name Description vsz virtual memory...
If you want to use rsync to transfer files that don't belong to your user to another system you...
It happens from time to time that a job in a GitLab pipeline fails. Sometimes, however, the error message is...
For some reason you have to pass the password hash if you want to create a role in postgres. To...
journalctl _CMDLINE=dockerd podman journalctl SYSLOG_IDENTIFIER=podman identifying potential filter fields journalctl -o verbose journalctl -o json | jq
If you use third party APT sources you might end up with unmaintained packages after removing the external source or...
What is netfilter's Connection Tracking system? The connection tracking system often referenced as nf_conntrack is part of the...
When you synchronize directories with rsync you have to pay attention to use (or not use) trailing /. Hint
Before you continue, ensure that you've created your certificate in the region us-east-1 (N. Virginia). Otherwise...
When restoring a barman PITR backup you may encounter this error: Copying required WAL segments. EXCEPTION: {'ret': 2, 'err': '/bin/sh...
There is an issue with when restoring a PostgreSQL dump created with pg_dump < v11 with pg_restore > v10:
With passenger-status --show=requests you can get a huge JSON showing current information about the running passenger processes.
If one etcd node is no longer a member of the remaining etcd cluster or fails to connect you need...
Hint This applies only to distributions based on Debian. Requirement You need to setup the PostgreSQL Apt Repository first.
on the bash (issued as postgres user) Start/Stop/Restart PostgreSQL pg_ctl -D $configdir start|stop|restart Start/Stop/Restart the corresponding PostgreSQL...
Hint You're not able to control which redis replica will chosen for the failover. Connect to your sentinel instance...
Don't use exec without user parameter If you use exec without user parameter, the command will get executed as...
If you want to perform a failover on another haproxy backend server this is the way you should do it...
The puppet server caches custom functions. If you edit an existing function (e.g. while you’re developing it), you’ll...