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Skip empty DNS cluster queries - #1979

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Subharup-31 wants to merge 1 commit into
supabase:mainfrom
Subharup-31:codex/skip-empty-dns-nodes
Open

Skip empty DNS cluster queries#1979
Subharup-31 wants to merge 1 commit into
supabase:mainfrom
Subharup-31:codex/skip-empty-dns-nodes

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Fixes #1429.

DNS_NODES can be set to Docker's quoted-empty placeholder (''), which Realtime previously passed through to Cluster.Strategy.DNSPoll as a real query name. This normalizes empty and quoted-empty values to nil, then skips the DNS topology when there is no actual DNS node name to poll.

Validation:

  • git diff --check

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Spurious DNS requests sent every five seconds

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