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NullReference exception in TreeCache #371

tusmester opened this Issue May 24, 2018 · 0 comments


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tusmester commented May 24, 2018

In some cases (under a heavy load, when workspaces are created in parallel and the settings cache gets invalidated many times) a nullreference exception is thrown in the TreeCache class (link-to-line), when accessing the singleton Instance.

Possible cause

The internal variable may become null because the invalidation in the InvalidatePrivate method happens outside of a lock block.

Solution options

  1. simplify the code using a Lazy variable (preferred)
  2. or lock the invalidation too


  • backport to SN6 and notify the CF team

@kavics kavics added this to the Sprint 159 milestone May 29, 2018

@kavics kavics self-assigned this May 29, 2018

@kultsar kultsar closed this May 30, 2018

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