Uploaded image for project: 'WiredTiger'
  1. WiredTiger
  2. WT-3756

Adjust pre-allocated file amount downward if we're not using them quickly enough

    • Type: Icon: New Feature New Feature
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 4.0.5, 4.1.6, WT3.2.0
    • Affects Version/s: None
    • Component/s: None
    • Labels:
    • Storage Engines 2018-11-19, Storage Engines 2018-12-03

      Currently the logging subsystem will adapt up the number of log files it pre-allocates if a heavy load finds none available. The system will continue to maintain that higher number of pre-allocated log files on the assumption that if the heavy load happened once, it may happen again.

      Some customers are sensitive to the additional disk space consumption and are willing to trade off the occasional potential performance impact of not finding a pre-allocated log file for consuming less disk space.

      We should consider an adapt-down mechanism, either based on a configuration option or all the time.

            sue.loverso@mongodb.com Susan LoVerso
            sue.loverso@mongodb.com Susan LoVerso
            0 Vote for this issue
            7 Start watching this issue