[SERVER-5490] Balancer delay doesn't really delay very well Created: 03/Apr/12  Updated: 04/Apr/12  Resolved: 04/Apr/12

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

Type: Bug Priority: Major - P3
Reporter: Greg Studer Assignee: Unassigned
Resolution: Won't Fix Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
is related to SERVER-5491 Configurable balancer delay parameter Closed
Operating System: ALL
Participants:

 Description   

... if there are lots of mongoses. Even though each sleeping mongos sleeps for 30s, with enough mongoses and short migration time, it's pretty likely that another mongos balancer will wake up immediately after the "active" balancer sleeps. There's also weird effects if all mongoses were restarted at similar times until they desync.

Fix :
Have balancer check the changelog? Susceptible to time skew.



 Comments   
Comment by Eliot Horowitz (Inactive) [ 04/Apr/12 ]

Not really sure the "delay" is meant as a pause mechanism..
Closing this and focusing on SERVER-5491

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