tree c281105b279808d862817c796970c5a38bf6f231
parent cad4530023c0c00b1311fd02a80946c16d343d73
author Joseph Koshakow <jkosh44@users.noreply.github.com> 1583792436 -0400
committer GitHub <noreply@github.com> 1583792436 -0400
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Remove race condition from FluoAdminImpl.numWorkers (#1090)

The pattern of checking if a ZNode exists and then getting it's
children contains a race condition. If the ZNode is deleted after
the existence check but before getting the children then a
NoNodeException will be thrown instead of returning 0.

Instead we skip the existence check and just return 0 when a
NoNodeException is thrown. This will avoid the race condition.

Fixes #1089