Bug 1516280 - [Doc]: Upgrade of cluster from 2.4 to 3.0 in ubuntu require changes in upgrade path
Summary: [Doc]: Upgrade of cluster from 2.4 to 3.0 in ubuntu require changes in upgrad...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: Documentation
Version: 3.0
Hardware: Unspecified
OS: Unspecified
high
urgent
Target Milestone: rc
: 3.0
Assignee: Erin Donnelly
QA Contact: Ramakrishnan Periyasamy
URL:
Whiteboard:
Depends On:
Blocks: 1496210
TreeView+ depends on / blocked
 
Reported: 2017-11-22 12:01 UTC by Ramakrishnan Periyasamy
Modified: 2017-12-26 03:41 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-12-26 03:41:28 UTC
Embargoed:

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Description Ramakrishnan Periyasamy 2017-11-22 12:01:56 UTC 
Description of problem:

While upgrading ubuntu cluster from 2.4 to 3.0 please update below changes in upgrade doc.

Note: in 2.4 ubuntu cluster is installed from RHEL machine ceph-ansible but in 3.0 Ubuntu machine ceph-ansible is supported and it requires following changes. Please add this information in pre-requisite section.

1. Update all.yml according to the new ceph-ansible supported params (basically we need to add all info as in installation.)
2. Update /etc/ansible/hosts file with custom osd_scenarios if any
3. Change "generate_fsid" to false, this param is default true and if not changed to false then cluster fsid will be changed during rolling upgrade.
"generate_fsid: false"
4. Update "fsid" param to existing cluster fsid.
fsid: 'eb2091ec-4a92-47aa-b953-17094f8bcc2f'
Comment 3 Ramakrishnan Periyasamy 2017-11-22 12:16:53 UTC 
The above changes required only for ubuntu upgrade. RHEL upgrade will work without above changes.
Comment 9 Ramakrishnan Periyasamy 2017-11-30 07:06:22 UTC 
Thanks Erin, The doc text looks good. Moving this bug to verified state.
Comment 10 Ramakrishnan Periyasamy 2017-12-01 09:38:22 UTC 
Hi Erin,

Re-opening this bug for adding the "note" which is in bug description. It is important since from 3.0 ubuntu cluster can be configured using ceph-ansible on Ubuntu.


Please add below text in the Note section before pre-requisite of ubuntu upgrade doc.

"RHCS 3.0 supports ceph-ansible on Ubuntu. We recommend you to install the 3.0 based ceph-anisble (a link to install ceph-ansible can be provided here) on a Ubuntu node and use the below mentioned details to continue with upgrade."

Thanks.
Comment 11 Ramakrishnan Periyasamy 2017-12-01 09:44:44 UTC 
(In reply to Ramakrishnan Periyasamy from comment #10)
 
> "RHCS 3.0 supports ceph-ansible on Ubuntu. We recommend you to install the
> 3.0 based ceph-anisble (a link to install ceph-ansible can be provided here)
> on a Ubuntu node and use the below mentioned details to continue with
> upgrade."

Missed this during verification of bug, Please add the comment and move the bug to ON_QA
Comment 13 Ramakrishnan Periyasamy 2017-12-04 08:23:23 UTC 
Erin, Thank you for the update.

Doc looks good now moving this bug to verified state.
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