Waitopedia is a comprehensive resource of information about SQL Server waits.

The description shown below is the top answer as voted by the Spotlight community.

The charts are based on 2.1 TB of data collected from 4207 instances uploaded by 323 Spotlight users over an 8 week period.


Category: Other
SQL Server versions: 2008, 2008 R2, 2012, 2014, 2016, 2017


1 Answer


Occurs when there is a wait to acquire access to FILESTREAM log truncation to do either of the following:

  • Temporarily disable FILESTREAM log (FSLOG) truncation (used by backup and restore).
  • Execute one cycle of FSLOG truncation. Information from Microsoft®

This wait has never occurred recently

FS_LOGTRUNC_RWLOCK has not occurred recently on 4207 instances checked.

Prevalence of FS_LOGTRUNC_RWLOCK across the Spotlight Population