Add APCu host DNS cache #4
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Within Lambda we are unable to easily cache DNS records as we do on conventional servers. As each request creates a new connection, the amount of DNS queries we perform can mount up. This issue looks to be causing issues under production load at this time. This adds an application-level cache for storing the resolved IP of the desired host (env: CACHE_PDO_HOST_DNS) for a desired amount of time.
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tomcant
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Nov 12, 2021
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Within Lambda we are unable to easily cache DNS records as we do on conventional servers.
As each request creates a new connection, the amount of DNS queries we perform can mount up.
This issue looks to be causing issues under production load at this time.
This adds an application-level cache for storing the resolved IP of the desired host (env: CACHE_PDO_HOST_DNS) for a desired amount of time.