Access Logs

You can enable access logs by installing a logger. You specify the max size of logs for server logs (access logs), and max size of logs for upstream logs (log of requests to upstream). You can then specify the file rotation size, which must be smaller than the smallest of the two divided by a number of CPU cores / 2.

enable_access_logs(config, "/var/log/broadpeak/hpcd", 40GiB, 10GiB, 16MiB); // 40 GiB of server logs, 10 GiB of upstream logs at most, rotate files every 16 MB

Access logs will be written to /var/log/broadpeak/hpcd. Each CPU core will write its own log files, and the request received as a server, and the requests issued to upstreams are logged in two separate files.

To ease log exploitation, the utility hpc-ctl interleaves log lines from all those files automatically, and allows for efficient selection of time ranges.

• hpc-ctl log print: prints the whole access log

• hpc-ctl log print --from 2024-12-24T23:59:00: filters access logs

• hpc-ctl log print --from ... --to ...: filters access logs