Categories
DevOps

How to alter memory allocation pool for Kafka and ZooKeeper

Alter memory allocation pool for Kafka and ZooKeeper.

Categories
DevOps

How to disable GC Logging for Kafka and bundled ZooKeeper

Disable GC Logging for Kafka and bundled ZooKeeper.

Categories
SysOps

How to log systemd service state changes

Log systemd service state changes using rsyslog.

Categories
SysOps

How to get service PID using systemctl

Use systemctl to get process identifier for specified service.

Categories
Uncategorized

How to manage systemd services remotely

Manage systemd services remotely over SSH protocol.

Categories
SysOps

How to restart service on every configuration change

Monitor file system events to restart service on every configuration change.

Categories
SysOps

How to log specific Varnish requests

Use varnishlog to log specific Varnish requests.

Categories
SysOps

How to use virtual memory filesystem to store Varnish Shared memory Log

Varnish Shared memory Log can put a major strain on the disk (I/O write operations). The solution is to store it on the virtual memory filesystem.