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Server Health Level

hphp/hack/manual/apis/Functions/HH/server_health_level.md

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:::info[Note] This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information. :::

Return the health level of the server in the range of 0~100

Hack
namespace HH;

function server_health_level(): int;

Returns

  • int - - 100 if the server is very healthy, and 0 if the server should not receive any more request.
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