Tag
case studies
Logs written by real services aren’t always valid JSON Lines. A process killed mid-write leaves half a line. The restarted process appends its first event straight …
case studies
The alert says checkout is slow. You have the last six hours of application logs as one JSON Lines file, 1 GiB and 3,073,492 lines, and a handful of questions to answer …
case studies
Most log files older than a day are compressed. Logrotate gzips them, object storage keeps them as .gz, and the habit for querying them is a pipe: zcat app-*.jsonl.gz | …
releases
Application logs tend to end up in the same shape: a file of a few gigabytes with one JSON event per line, and a question about it. How many 500s per service since the …