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This article is to share with you about the role of Pool in Ceph RGW, the editor thinks it is very practical, so I share it with you to learn. I hope you can get something after reading this article.

The role of each Pool in Ceph RGW 1. Introduction

When using Ceph's radosgw service, a series of pool is created through the create pool command to serve radosgw. I want to analyze the role of each pool in this article.

2.pool information lists POOLS:NAME ID USED% USED MAX AVAIL OBJECTS .rgw.root 18 4375 0 19575G 7 .rgw 19 8559 0 13050G 43 .rgw.control 20 0 0 19575G 9 .rgw.gc 21 0 0 19575G 76 .rgw.buckets 22 0 0 19575G 0 .rgw.buckets.index 23 0 0 25849G 2048 .log 24 0 0 19575G 180. Intent-log 25 0 0 19575G 0 .usage 26 0 0 19575G 0 .users 27 74 0 19575G 6 .users.email 28 0 0 19575G 0 .users.swift 29 52 0 13050G 4 .users. Uid 30 2847 0 19575G 12

All the pool information required for default rgw work is listed above, and I explain their functions here.

3.region and zone information management

In .rgw.root, cluster namespace information is stored. I use the default configuration. In the application, the region and zone information of the cluster can be configured, and radosgw-agent can be used to synchronize the information between zone in region. This is the division of the top floor.

[root@ceph5] # rados-p. Rgw.root lszone_info.mainregion_mapdefault.regionregion_info.defaultzone_info.defaultregion_info.

You can get the region,zone information with the following command, or you can edit the configuration file and reset it.

Radosgw-admin region get > > region.conf.jsonradosgw-admin zone get > > zone.conf.jsonradosgw-admin region set

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