atop-daily1

Usage

Overview

atop-daily performs daily maintenance of pcp-atop(1) PCP archives. It is normally called from systemd(1) via the atop-daily.timer unit, or automatically by pcp-atop(1) at startup.

When run without options, atop-daily creates the archive directory if absent, compresses prior-day archives using xz(1) for metadata and zstd(1) for data volumes, and culls archives older than LOGGENERATIONS days (default 28).

Compression is non-blocking: files are atomically renamed then compressed by background processes so the caller and pcp-atop(1) can proceed immediately.

Options

--compress-only

Compress prior-day archives only; do not cull old archives. This mode is used when called from pcp-atop(1) itself at startup.

--help

Display a usage message and exit.

Configuration

The following environment variables may be set in the pcp-atop(1) sysconfig file (/etc/sysconfig/atop or /etc/default/atop):

LOGPATH

Archive directory. Default: /var/log/atop. May also be specified as a command line argument.

LOGGENERATIONS

Number of days of archives to retain. Default: 28. A value of 0 disables culling.

Files

/var/log/atop

Default directory for pcp-atop(1) archive files.