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117 lines
3.8 KiB
Markdown
117 lines
3.8 KiB
Markdown
# How to use ``mc mirror`` to setup replication between two sites running Minio. [](https://gitter.im/minio/minio?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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In this document we will illustrate how to set up replication between two Minio servers, `minio1` and `minio2` running on ``192.168.1.11`` and ``192.168.1.12`` respectively. We will mirror the data directory on `minio1` to the bucket on `minio2`.
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## 1. Prerequisites
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* Download Minio server from [here](https://docs.minio.io/docs/minio)
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* Download & Install mc from [here](https://docs.minio.io/docs/minio-client-quickstart-guide)
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* Familiarity with [``mc mirror``](https://docs.minio.io/docs/minio-client-complete-guide#mirror)
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## 2. Install and Configure Minio Server
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### Setup minio1
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```sh
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$ ./minio server minio1-data/
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Endpoint: http://127.0.0.1:9000 http://192.168.1.11:9000
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AccessKey: MURIVYBYNPTYE7O8I779
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SecretKey: lVbZmz4CvGkBl7JKw5icuL7RCcSvpBJTkAJTFQwz
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Region: us-east-1
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```
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**mc alias**
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Alias is a short name to your cloud storage service for ``Minio client``. End-point, access and secret keys are supplied by your cloud storage provider. API signature is an optional argument. By default, it is set to ``S3v4``.
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```sh
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$ ./mc config host add minio1 http://192.168.1.11:9000 MURIVYBYNPTYE7O8I779 lVbZmz4CvGkBl7JKw5icuL7RCcSvpBJTkAJTFQwz
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```
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**Create buckets and add objects**
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We have created few buckets using [``mc mb``](https://docs.minio.io/docs/minio-client-complete-guide#mb) and added objects to it using [``mc cp``](https://docs.minio.io/docs/minio-client-complete-guide#cp) Minio client commands.
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```sh
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$ ./mc mb minio1/mybucket
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$ ./mc cp myfile.txt minio1/bucket1
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$ ./mc ls minio1
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[2016-07-31 10:26:55 PDT] 0B bucket1/
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[2016-07-31 09:36:17 PDT] 0B bucket2/
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[2016-07-31 09:38:08 PDT] 0B bucket3/
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```
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### Setup minio2
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```sh
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$ ./minio server minio2-data/
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Endpoint: http://127.0.0.1:9000 http://192.168.1.12:9000
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AccessKey: YRDRWWQLEWS9OBJ31GZ2
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SecretKey: y2sSWzx5ytwvkELcxOuSaQ8n3doNqoIilRpb5Kjj
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Region: us-east-1
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```
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```sh
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$ ./mc config host add minio2 http://192.168.1.12:9000 YRDRWWQLEWS9OBJ31GZ2 y2sSWzx5ytwvkELcxOuSaQ8n3doNqoIilRpb5Kjj
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```
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**Create bucket**
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We are creating destination bucket ``mbucket`` on ``minio2`` and adding ``minio2`` alias. The bucket ``mbucket`` will be used to mirror data directory of ``minio1``.
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```sh
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$ ./mc mb minio1/mbucket
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```
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```sh
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$ ./mc config host add minio2 http://192.168.1.12:9000 YRDRWWQLEWS9OBJ31GZ2 y2sSWzx5ytwvkELcxOuSaQ8n3doNqoIilRpb5Kjj
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```
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## 4. Setup crontab
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Cron is a Unix/Linux system utility by which you can schedule a task process for particular duration, we have tested this setup on Ubuntu Linux.
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### Script
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Add crontab configuration on `minio1` providing path of data directory, ``minio1-data``.
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``--force`` option with ``mc mirror`` overwrites the destination contents, this would keep your contents in sync.
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```sh
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#!/bin/bash
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datadir="/home/minio/minio1-data/"
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minio2="minio2/mbucket"
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MC_PATH="/home/minio/mc"
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$MC_PATH --quiet mirror --force $minio1 $minio2
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```
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Set executable permissions on the script before adding a cron entry.
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```sh
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$ chmod 755 /home/minio/minio.sh
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```
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Set a new cron entry to run ``minio.sh`` script once every 30mins.
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```sh
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$ crontab -e
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*/30 * * * * /home/minio/minio.sh
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```
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Note: We are going to introduce continuous replication feature in `mc mirror` which will enable the sites to be in sync without having the need to setup cron job.
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# Explore Further
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* [Minio Quickstart Guide](https://docs.minio.io/docs/minio-quickstart-guide)
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* [Minio Client Complete Guide](https://docs.minio.io/docs/minio-client-complete-guide)
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