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DNS cache enhancement #4729

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DNS cache enhancement #4729

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@rahim-kanji rahim-kanji commented Oct 25, 2024 •
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  • Introduced a 5% jitter to cache_ttl to increase the likelihood of distributing DNS resolution across multiple intervals, reducing the chance of simultaneous expiry times.
  • Added a small delay after queuing, allowing DNS resolver thread time to process as many hostnames as possible before assessing the need for additional helper threads. This prevents 'DNS resolver queue too big' warnings from filling up the logs.

Closes #4730

@rahim-kanji
* Introduced a 5% jitter to cache_ttl to increase the likelihood of
cfc2c97 
  distributing DNS resolution across multiple intervals, reducing the
  chance of simultaneous expiry times.
* Added a small delay after queuing DNS records, allowing DNS resolver
  thread time to process as many hostnames as possible before assessing
  the need for additional helper threads. This helps prevent 'DNS
  resolver queue too big' warnings in the logs.
@rahim-kanji
Optimization
11d8d80
@rahim-kanji
Updated TAP test
90b33dc
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DNS Cache Enhancement
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