[DOCS-1848] Warning for secondaryPreferred read preference would cause unavailability in some common scenarios Created: 22/Aug/13 Updated: 11/Jan/17 Resolved: 25/Nov/13 |
|
| Status: | Closed |
| Project: | Documentation |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | 01112017-cleanup |
| Type: | Task | Priority: | Major - P3 |
| Reporter: | Sridhar Nanjundeswaran | Assignee: | Sam Kleinman (Inactive) |
| Resolution: | Done | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Participants: | |
| Days since reply: | 10 years, 12 weeks, 2 days ago |
| Description |
|
http://docs.mongodb.org/manual/reference/read-preference/#secondaryPreferred The documentation above warns against using secondaryPreferred and instead favors secondary. If you have a 3 node RS where you have 2 data nodes and an arbiter and you use secondary as opposed to secondaryPreferred. Reads will not go through if your secondary goes down or is just unreachable due to network issues, even though you have a functioning replica set. We should remove this warning and instead add an alternate warning to the secondary read preference saying secondaryPreferred is recommended. |
| Comments |
| Comment by Githook User [ 25/Nov/13 ] |
|
Author: {u'username': u'tychoish', u'name': u'Sam Kleinman', u'email': u'samk@10gen.com'}Message: |
| Comment by Githook User [ 25/Nov/13 ] |
|
Author: {u'username': u'ajdavis', u'name': u'A. Jesse Jiryu Davis', u'email': u'jesse@mongodb.com'}Message: Add a section on use cases for read preferences. Signed-off-by: Sam Kleinman <samk@10gen.com> |
| Comment by Githook User [ 25/Nov/13 ] |
|
Author: {u'username': u'tychoish', u'name': u'Sam Kleinman', u'email': u'samk@10gen.com'}Message: |
| Comment by Githook User [ 25/Nov/13 ] |
|
Author: {u'username': u'ajdavis', u'name': u'A. Jesse Jiryu Davis', u'email': u'jesse@mongodb.com'}Message: Add a section on use cases for read preferences. Signed-off-by: Sam Kleinman <samk@10gen.com> |
| Comment by A. Jesse Jiryu Davis [ 21/Oct/13 ] |
|
Here you go: https://github.com/mongodb/docs/pull/1326 |