# MinIO Monitoring Guide

MinIO server exposes monitoring data over endpoints. Monitoring tools can pick the data from these endpoints. This document lists the monitoring endpoints and relevant documentation.

## Healthcheck Probe

MinIO server has two healthcheck related un-authenticated endpoints, a liveness probe to indicate if server is responding, cluster probe to check if server can be taken down for maintenance.

    }

    /**
     * Schedules periodic tasks for heartbeat and registration monitoring.
     */
    private void schedulePeriodicTasks() {
        // Heartbeat monitoring
        scheduler.scheduleAtFixedRate(this::checkHeartbeats, 30, 30, TimeUnit.SECONDS);

        // Registration monitoring
        scheduler.scheduleAtFixedRate(this::monitorRegistrations, 10, 10, TimeUnit.SECONDS);
    }

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.timer.TimeoutTarget;

/**
 * HcConnectionMonitorTarget is responsible for monitoring and managing HTTP client connections.
 * It implements the TimeoutTarget interface to handle connection expiration events.
 *
 * <p>This class uses an instance of HttpClientConnectionManager to manage the connections.

      - {{ .Release.Namespace | quote }}
  selector:
    matchLabels:
      app: {{ include "minio.name" . }}
      release: {{ .Release.Name }}
      monitoring: "true"
{{- end }}
{{- if .Values.metrics.serviceMonitor.enabled }}
---
apiVersion: monitoring.coreos.com/v1
kind: Probe
metadata:
  name: {{ template "minio.fullname" . }}-cluster
  {{- if .Values.metrics.serviceMonitor.namespace }}

# How to monitor MinIO server with Prometheus? [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

     * @return the timeout task for monitoring
     */
    public TimeoutTask startMonitorTask(final JobLog jobLog) {
        final TimeoutTarget target = new MonitorTarget(jobLog);
        return TimeoutManager.getInstance().addTimeoutTarget(target, monitorInterval, true);
    }

    /**
     * Sets the monitor interval for job monitoring.
     *

metadata:
  name: {{ template "minio.fullname" . }}
  labels:
    app: {{ template "minio.name" . }}
    chart: {{ template "minio.chart" . }}
    release: {{ .Release.Name }}
    heritage: {{ .Release.Service }}
    monitoring: "true"
  {{- if .Values.service.annotations }}
  annotations: {{- toYaml .Values.service.annotations | nindent 4 }}
  {{- end }}
spec:
  type: {{ .Values.service.type }}

 *
 * This transaction allows monitoring of file system changes in a directory,
 * such as file creation, modification, deletion, and attribute changes.
 */
public class NtTransNotifyChange extends SmbComNtTransaction {

    int fid;
    private final int completionFilter;
    private final boolean watchTree;

    /**
     * Constructs an NT transaction for change notification monitoring.

kibana 7 settings for fess
=====

Providing example of kibana settings file for monitoring search logs of fess.

## Install

1. Install and launch Fess.
1. Install and launch kibana.
1. Go to kibana home [http://localhost:5601/](http://localhost:5601/).
1. Click **Management**.
1. Click **Index Patterns**.
1. Click **Create index pattern** button
1. Input "fess\_log\*" to the textbox of **index pattern**.
1. Click **Next step**.

     * -2: use system default, -1: never expire, 0 or positive: expire after specified days.
     */
    protected int documentExpires = -2;

    /**
     * Hot thread monitoring interval in seconds.
     * -1: disabled, positive value: enable hot thread monitoring with specified interval.
     * Used for performance analysis and debugging of the crawler process.
     */
    protected int hotThreadInterval = -1;

    /**