Differential D15663
Lay `cluster.databases` configuration groundwork for database clustering Authored by epriestley on Apr 9 2016, 1:04 PM. Tags None Referenced Files
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Ref T4571. This adds a new option which allows you to upgrade your one-host configuration to a multi-host configuration by configuring it. Doing this currently does nothing. I wrote a lot of words about what it is supposed to do in the future, though.
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Event TimelineComment Actions general question here: this seems to support a single datacenter only. That is, to have failover in a different datacenter would require different config between different DCs. If not, phabricator might try to make cross DC requests if the master is unreachable. Would it be possible to support DC aware cluster configuration? Comment Actions Can you give me a scenario or list of scenarios where a Phabricator webserver would make a different decision and achieve a better outcome if it was datacenter-aware? In the cases I can come up with, the outcome is not meaningfully better by adding datacenter awareness: we still fail or succeed in roughly the same manner. But I may just not be thinking of the same situation you are. |