Fix a possible database ref fatal during MySQL setup checks if a host is unreachable
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Authored by epriestley on Aug 17 2017, 6:35 PM.

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	F18811655: D18442.diff
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chad

Maniphest Tasks

T12966: Phabricator should survive a restart and setup checks with an unreachable master

Commits

rP68008dce609b: Fix a possible database ref fatal during MySQL setup checks if a host is…

Summary

Ref T12966. See that task for a description and reproduction steps.

If you put Phabricator in a master/replica configuration and then restart it, we may fatal here if the master is unreachable. Instead, we should survive setup checks.

Test Plan

Put Phabricator in a master/replica configuration, explicitly disabled the master by misconfiguring the port, restarted Phabricator. Before: fatal; after: login screen in read-only mode.