DumbMonit

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Monitorizar Grafana Loki com o DumbMonit

The log server itself: readiness, log lines it refuses and why, chunks that fail to reach storage, write-ahead log disk, request errors.

DocumentaçãoSite oficial: Grafana Loki

As descrições estão em inglês, como no produto. Os rótulos da página seguem o seu idioma.

O que o DumbMonit vigia

The log server itself: whether it is ready, which log lines it refuses and why, whether its chunks reach storage, and whether its write-ahead log still has disk.

Utilização típica. Log server: readiness, refused lines, flush failures

Exemplos

  • Loki single binary
  • Loki simple scalable

Como se liga

O que precisa

  • Username / passwordSent as HTTP basic authentication.
  • Bearer tokenSent as "Authorization: Bearer …" on every request.

Não é preciso nenhuma conta.

Portas de rede a abrir

  • 3100/TCPLoki HTTP API (default)
Passos de configuração: Let DumbMonit read Loki's own health
  1. Nothing to install: check from the DumbMonit host that Loki answers on its HTTP port (3100 by default).

    curl http://loki.lan:3100/ready
  2. Loki has no login of its own: only if a reverse proxy in front asks for one, pick Username / password (or Bearer token) below.

  3. In DumbMonit, enter Loki's address, for example "loki.lan" or "https://logs.lan/loki" behind a reverse proxy.

  4. With Loki split into components (simple scalable or microservices), add at least the write path.

Atenção. Refused lines are the failure to watch: when Loki refuses a line (too old, over a rate or stream limit, too long), the sender usually drops the batch and Grafana only shows a gap in the logs.