Bug 1265797
| Summary: | [RFE] Multi-site v2 for active-active read/write | ||
|---|---|---|---|
| Product: | [Red Hat Storage] Red Hat Ceph Storage | Reporter: | Neil Levine <nlevine> |
| Component: | RGW | Assignee: | Yehuda Sadeh <yehuda> |
| Status: | CLOSED ERRATA | QA Contact: | shilpa <smanjara> |
| Severity: | medium | Docs Contact: | Bara Ancincova <bancinco> |
| Priority: | unspecified | ||
| Version: | 1.3.0 | CC: | cbodley, ceph-eng-bugs, hnallurv, icolle, kbader, kdreyer, mbenjamin, owasserm, sweil, yehuda, yweinste |
| Target Milestone: | rc | Keywords: | FutureFeature |
| Target Release: | 2.0 | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Enhancement | |
| Doc Text: |
.New multi-site configurations for the Ceph Object Gateway
The Red Hat Ceph Storage now supports an active-active zone configuration of Ceph Object Gateways. Previously, only active-passive configuration was supported, meaning the users could write only to one (master) zone. With this update, users can write also to non-master zones.
In addition, this update introduces the following changes:
* A region is now called `zone-group`.
* Support for configuring realms has been added. A realm is a single zone group or multiple zone groups with a globally unique namespace.
* A configuration period has been added. The period is a representation of the multi-site configuration at a point in time. The current period contains an epoch that advances as changes are made to the configuration. A new period is generated when the location of the multi-site master zone changes.
* The `ceph-radosgw` daemon handles the synchronization, eliminating the need for a separate synchronization agent.
For details see the https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/single/object-gateway-guide-for-red-hat-enterprise-linux/#multi_site[Multi-site] chapter in the https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/single/object-gateway-guide-for-red-hat-enterprise-linux[Object Gateway Guide for Red Hat Enterprise Linux] and the https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/single/object-gateway-guide-for-ubuntu/#multi_site[Multi-site] chapter in the https://access.redhat.com/documentation/en/red-hat-ceph-storage/2/single/object-gateway-guide-for-ubuntu[Object Gateway Guide for Ubuntu].
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-08-23 19:27:35 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1322504 | ||
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Description
Neil Levine
2015-09-23 19:03:54 UTC
As an admin, I create two clusters in two separate locations and ensure that all RGW content is synced between the site. As an admin, I configure my load balancer to ensure read/write affinity to the nearest RGW instance. Ref doc: http://10.34.3.139:8080/view/Ceph/job/doc-Red_Hat_Ceph_Storage_2-Object_Gateway%20-%20RHEL%20%28html-single%29/lastSuccessfulBuild/artifact/RHEL/index.html#_configuring_a_master_zone In the section "Create a Master Zone", the zone should be configured with an endpoint: #radosgw-admin zone create --rgw-zonegroup={zone-group-name} --rgw-zone={zone-name} --master --default Should be changed to: #radosgw-admin zone create --rgw-zonegroup={zone-group-name} --endpoints=http://rgw1:80 --rgw-zone={zone-name} --master --default Documentation is being tracked in https://bugzilla.redhat.com/show_bug.cgi?id=1321892. Feature testing is complete. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2016:1755 |