[SERVER-15205] Query engine should write to QLOG when backup solution for cached plan is used Created: 10/Sep/14  Updated: 27/Apr/15  Resolved: 07/Apr/15

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

Type: Bug Priority: Major - P3
Reporter: J Rassi Assignee: J Rassi
Resolution: Won't Fix Votes: 0
Labels: neweng
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Related
related to SERVER-13419 Plan summary string in slow query log... Closed
Backwards Compatibility: Fully Compatible
Operating System: ALL
Participants:

 Description   

If the blocking plan used by the CachedPlanStage fails during execution and falling back to the backup plan is required, the following should be written to QLOG:

  • A message indicating that the backup plan is being switched to.
  • The current execution stats for the blocking plan.
  • The error message corresponding to the failure of the blocking plan, if an error message is available.

Currently, the CachedPlanStage does no logging when switching to the backup plan.



 Comments   
Comment by Eliot Horowitz (Inactive) [ 07/Apr/15 ]

QLOG is gone

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