# MinIO Server Debugging Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io) [![Docker Pulls](https://img.shields.io/docker/pulls/minio/minio.svg?maxAge=604800)](https://hub.docker.com/r/minio/minio/)

## HTTP Trace

HTTP tracing can be enabled by using [`mc admin trace`](https://github.com/minio/mc/blob/master/docs/minio-admin-complete-guide.md#command-trace---display-minio-server-http-trace) command.

Example:

```sh
minio server /data

#!/bin/bash -e
#

set -E
set -o pipefail

if [ ! -x "$PWD/minio" ]; then
	echo "minio executable binary not found in current directory"
	exit 1
fi

WORK_DIR="$PWD/.verify-$RANDOM"
MINIO_CONFIG_DIR="$WORK_DIR/.minio"
MINIO=("$PWD/minio" --config-dir "$MINIO_CONFIG_DIR" server)
GOPATH=/tmp/gopath

function start_minio_3_node() {
	for i in $(seq 1 3); do
		rm "${WORK_DIR}/dist-minio-server$i.log"
	done

	export MINIO_ROOT_USER=minio

- MinIO exports Prometheus compatible data by default as an authorized endpoint at `/minio/v2/metrics/cluster`. 
- MinIO exports Prometheus compatible data by default which is bucket centric as an authorized endpoint at `/minio/v2/metrics/bucket`.

This document explains how to setup Prometheus and configure it to scrape data from MinIO servers.

## Prerequisites

- [The MinIO documentation website](https://min.io/docs/minio/linux/index.html)

## Contribute to MinIO Project

Please follow MinIO [Contributor's Guide](https://github.com/minio/minio/blob/master/CONTRIBUTING.md)

## License

- MinIO source is licensed under the [GNU AGPLv3](https://github.com/minio/minio/blob/master/LICENSE).

- Cluster probe available at `/minio/health/cluster`

Read more on how to use these endpoints in [MinIO healthcheck guide](https://github.com/minio/minio/blob/master/docs/metrics/healthcheck/README.md).

## Prometheus Probe

package main

import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/url"
	"time"

	"github.com/minio/minio-go/v7"
	cr "github.com/minio/minio-go/v7/pkg/credentials"
)

var (
	// LDAP integrated Minio endpoint
	stsEndpoint string

	// token to use with AssumeRoleWithCustomToken
	token string

	// Role ARN to use
	roleArn string

// credentials. It is for MinIO testing purposes only.
//
// Run like:
//
// $ MINIO_ENDPOINT=http://localhost:9000 go run gen-oidc-sts-cred.go

import (
	"context"
	"fmt"
	"log"
	"net/http"
	"os"

	cr "github.com/minio/minio-go/v7/pkg/credentials"
	cmd "github.com/minio/minio/cmd"
)

func main() {
	ctx := context.Background()

### 1.2 Host Multiple Tenants on Multiple Drives (Erasure Code)

Use the following commands to host 3 tenants on multiple drives:

```sh
minio server --address :9001 /disk{1...4}/data/tenant1
minio server --address :9002 /disk{1...4}/data/tenant2
minio server --address :9003 /disk{1...4}/data/tenant3
```

# MinIO Storage Class Quickstart Guide [![Slack](https://slack.min.io/slack?type=svg)](https://slack.min.io)

MinIO server supports storage class in erasure coding mode. This allows configurable data and parity drives per object.

This page is intended as a summary of MinIO Erasure Coding. For a more complete explanation, see <https://min.io/docs/minio/linux/operations/concepts/erasure-coding.html>.

## Overview

	"github.com/minio/minio/internal/config/ilm"
	"github.com/minio/minio/internal/config/lambda"
	"github.com/minio/minio/internal/config/notify"
	"github.com/minio/minio/internal/config/policy/opa"
	polplugin "github.com/minio/minio/internal/config/policy/plugin"
	"github.com/minio/minio/internal/config/scanner"
	"github.com/minio/minio/internal/config/storageclass"
	"github.com/minio/minio/internal/config/subnet"