[SERVER-982] replication: warn if significant percentage of the oplog is in use Created: 07/Apr/10  Updated: 06/Dec/22  Resolved: 08/Feb/18

Status: Closed
Project: Core Server
Component/s: Replication
Affects Version/s: None
Fix Version/s: None

Type: New Feature Priority: Trivial - P5
Reporter: Dwight Merriman Assignee: Backlog - Replication Team
Resolution: Won't Fix Votes: 4
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
Assigned Teams:
Replication
Participants:

 Description   

we should warn people, at least in the log file, if they are using a significant % of their oplog. say more than a third.

then they might notice and be able to increase it before their slaves are dead.

this would be good in various montioring tools too, % of oplog in use. perhaps could be shown in serverStatus()



 Comments   
Comment by Dwight Merriman [ 16/Jul/11 ]

right. the former.

Comment by Scott Hernandez (Inactive) [ 16/Jul/11 ]

Dwight, I assume you mean if secondaries are pull from more than a 1/3 of the way down the oplog? Another way to look at this is how much of the oplog is being kept in memory, but that only makes sense if memory < data-size.

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