At present, the latest docker-compose version, which could be installed under Ubuntu 18, 20, and 21 is the 1.25 and 1.27 versions. There may be…
software
Unable to continue upgrading an old cacti 0.8.8 to the latest version 1.2.18
Upgrading an old instance of cacti monitoring software may become a challenge, because of multiple new recommendations and requirements for the latest version 1.2.x. There…
Transfer only a list of files with rsync
Transferring a list of files from one server to another maybe not so easy as it looks like, if the list consists of files with…
alter table error 1215 (HY000): Cannot add foreign key constraint
Adding a foreign key may result in the following error: This error can occur because in couple of cases and it is not very informative,…
Create and export a GlusterFS volume with NFS-Ganesha in CentOS 8
GlusterFS built-in NFS server supports only NFS version 3. GlusterFS offers NFS exports using NFS-Ganesha, which supports NFS version 3 and 4 protocols. NFS-Ganesha server…
glusterfs with localhost (127.0.0.1) nodes on different servers – glusterfs volume with 3 replicas
Binding the GlusterFS nodes on a physical interface may lead to local availability problems even for replication nodes. Bringing down the physical interface will bring…
Simple export of a ext4 directory with NFS Ganesha 3.5 server in CentOS 8 with SELinux enforcing
In fact, this article is a continuation of the previous NFS Ganesha article – Simple export of an ext4 directory with NFS Ganesha 3.5 server…
Simple export of a ext4 directory with NFS Ganesha 3.5 server in CentOS 8 without SELinux
NFS Ganesha is a user-mode file sharing server, which supports NFS 3 and 4.x versions and 9P. NFS Ganesha has several interesting plugins that support…
Stopping the glusterfs volume releases disk sleep process hangs
A quick tip for GlusterFS volume. There are multiple possible reasons for a Linux process to hang in “Disk Sleep” state, which even the KILL…
MySQL slave upgrade: Slave failed to initialize relay log info structure from the repository
MySQL slave after upgrade from 5.6.x to 5.7.x may throw the following error: The best solution for this error is to: Master server – mysqldump…