Bug 1654660 - [RFE] Colocation of different Ceph daemons on containerized deployment
Summary: [RFE] Colocation of different Ceph daemons on containerized deployment
Keywords:
Status: NEW
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat
Component: Distribution
Version: 5.0
Hardware: x86_64
OS: Linux
medium
medium
Target Milestone: rc
: 4.*
Assignee: ceph-eng-bugs
QA Contact: Tejas
URL:
Whiteboard:
Depends On:
Blocks: 1553254
TreeView+ depends on / blocked
 
Reported: 2018-11-29 11:18 UTC by Mikel Olasagasti
Modified: 2020-02-23 02:29 UTC (History)
4 users (show)

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Description Mikel Olasagasti 2018-11-29 11:18:58 UTC
Currently collocation of one daemon (RGW, MON/MGR, MDS, ...) with an OSD daemon in containerized deployments is supported[1][2].

Customer requests to support collocation of any different daemon in the same host avoiding the restriction that one of the daemon is an OSD.

Customer present the following scenario:

- In the current architecture they have 4 physical nodes (1 OSD and 3 OSD+MON) and 2 physical nodes (RGW). 
- They would like to have 3 physical nodes (RGW+MON) and 4 physical nodes (OSD). 
- They plan to increase the number of OSD nodes in the future.

[1] https://red.ht/2PYhlw9
[2] https://access.redhat.com/solutions/2109351

Comment 5 Giridhar Ramaraju 2019-08-05 13:11:52 UTC
Updating the QA Contact to a Hemant. Hemant will be rerouting them to the appropriate QE Associate. 

Regards,
Giri

Comment 6 Giridhar Ramaraju 2019-08-05 13:12:45 UTC
Updating the QA Contact to a Hemant. Hemant will be rerouting them to the appropriate QE Associate. 

Regards,
Giri

Comment 9 Federico Lucifredi 2020-01-23 04:07:47 UTC
With RHCS 4.0, the container co-location requirements have been further relaxed to allow a second co-located daemon in three-node clusters, in the following form:

N OSD + 1 additional scale out daemon + RGW
N OSD + 1 additional scale out daemon + RGW
N OSD + 1 additional scale out daemon + RGW

Arbitrary co-location of any daemon with any other daemon produces a combinatorial explosion of testing possibilities. The customer is invited to share what particular combination they are interested in for our review.


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