Start/notes.ini Parameters/Disable_View_Rebuild_Opt

Disable_View_Rebuild_Opt

Parameter: Disable_View_Rebuild_Opt
Short description: Disables the optimized view rebuild; HCL recommends using only as a last resort when View_Rebuild_Dir has insufficient space.

Profile

Parameter
Disable_View_Rebuild_Opt
Category
Performance / Memory
Component
Server
Available since
9.0.1
Supported versions
9.0.1, 10.0, 11.0, 12.0, 14.0, 14.5, 14.5.1
GUI equivalent
notes.ini only (no GUI)
Possible values
0 (default, optimized view rebuild active) | 1 (disabled)

Description

The parameter Disable_View_Rebuild_Opt disables the optimized view rebuild. By default, Domino uses a memory-optimized procedure for a view rebuild that uses a temporary folder — controlled via View_Rebuild_Dir — as a sort and swap area. If there is not enough space in the rebuild directory, Domino automatically falls back to the slower standard procedure and writes the warning „Unable to use optimized view rebuild for view … due to insufficient disk space“ to the log.
Disable_View_Rebuild_Opt=1 disables the optimized path system-wide. HCL explicitly recommends this measure only as a last resort if the above warning continues to appear for many views despite a configured View_Rebuild_Dir. If the messages occur only sporadically, the optimized rebuild should not be disabled, since it is significantly faster on large databases.

Example configuration

Disable_View_Rebuild_Opt=1

Notes & pitfalls

  • Before setting, definitely check whether View_Rebuild_Dir already points to a sufficiently large partition — this is usually the actual cause of the warning.
  • With the optimized rebuild disabled, Updalls on large databases take noticeably longer and disk I/O load is distributed differently.
  • Takes effect immediately after set config Disable_View_Rebuild_Opt=1 for subsequent rebuilds; a running rebuild is not aborted.
  • Usually only useful in combination with separate diagnostics of view sizes (compact -B, show database).

Sources