Can PAF be used to provide zero downtime while primary and backup servers are being patched?

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От David Gauthier
Тема Can PAF be used to provide zero downtime while primary and backup servers are being patched?
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Msg-id CAMBRECAWf8z-3Na+ucR1EsAPWYCrUU4K_-u73_BbAV7YSbeGJA@mail.gmail.com
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Ответы Re: Can PAF be used to provide zero downtime while primary and backup servers are being patched?  (Bruce Momjian <bruce@momjian.us>)
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Our IT dept needs to install a patch on both primary and backup servers for our Postgres Automatic Failover configured DB (version 9.6 on linux).  From the standpoint of the DB users, can a strategy be implemented such that they see zero downtime during this process as the 2 servers are taken down in sequence for their patch, switching the role of primary and backup as this happens ?

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