Реальные события подключения и снимки топологии

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{
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    "serverHeartbeatSucceeded": 1,
    "serverChanged": 1,
    "serverClosed": 1,
    "topologyClosed": 1
}

{
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    "servers": [
        {
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        }
    ]
}

"disableClientPersistence=true и освобождение клиента до завершения PHP request; обычная persistence имеет другую длительность жизни"