feat: multi-address DNS resolution for contact points and connections (DRIVER-201) - #890

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nikagra wants to merge 29 commits into

scylladb:scylla-4.xfrom

nikagra:fix/DRIVER-201-endpoint-resolve-all

Commits on Jul 29, 2026

refactor: remove dead local-DC contact-point compatibility check (DRIVER-201)

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claude
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feat: keep contact points unresolved; deprecate RESOLVE_CONTACT_POINTS (DRIVER-201)

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feat: add EndPoint.resolveAll() for multi-address DNS expansion (DRIVER-201)

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feat: resolve endpoints off the event loop with multi-IP fallback; deprecate resolve() (DRIVER-201)

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fix: gate contact-point reconnection fallback by topology monitor and enable it by default (DRIVER-201)

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docs: document contact-point DNS expansion in the upgrade guide (DRIVER-201)

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fix: rotate SNI resolveAll() with a dedicated counter (DRIVER-201)

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fix: aggregate multi-address connect failures; cover fallback with tests (DRIVER-201)

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docs: fix contradictory resolve-contact-points doc; clarify reconnect option (DRIVER-201)

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fix: bound the DNS-resolver thread pool in ChannelFactory (DRIVER-201)
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fix: scope protocol-version negotiation history per candidate address (DRIVER-201)
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docs: clarify control-reconnection race window and reresolvesNodeAddresses javadoc (DRIVER-201)
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test: remove vestigial RESOLVE_CONTACT_POINTS config from MockResolverIT (DRIVER-201)
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fix: resolve candidates via Netty's resolver and pin the connected address (DRIVER-201)

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test: cover the removed local-DC contact-point check (CUSTOMER-588)

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fix: do not pin an endpoint to the address it already holds (DRIVER-201)

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feat: multi-address DNS resolution for contact points and connections (DRIVER-201) - #890

feat: multi-address DNS resolution for contact points and connections (DRIVER-201)#890
nikagra wants to merge 29 commits into
scylladb:scylla-4.xfrom
nikagra:fix/DRIVER-201-endpoint-resolve-all

Commits on Jul 29, 2026

refactor: remove dead local-DC contact-point compatibility check (DRIVER-201)

feat: keep contact points unresolved; deprecate RESOLVE_CONTACT_POINTS (DRIVER-201)

feat: add EndPoint.resolveAll() for multi-address DNS expansion (DRIVER-201)

feat: resolve endpoints off the event loop with multi-IP fallback; deprecate resolve() (DRIVER-201)

fix: gate contact-point reconnection fallback by topology monitor and enable it by default (DRIVER-201)

docs: document contact-point DNS expansion in the upgrade guide (DRIVER-201)

fix: rotate SNI resolveAll() with a dedicated counter (DRIVER-201)

fix: aggregate multi-address connect failures; cover fallback with tests (DRIVER-201)

docs: fix contradictory resolve-contact-points doc; clarify reconnect option (DRIVER-201)

fix: bound the DNS-resolver thread pool in ChannelFactory (DRIVER-201)

fix: scope protocol-version negotiation history per candidate address (DRIVER-201)

docs: clarify control-reconnection race window and reresolvesNodeAddresses javadoc (DRIVER-201)

test: remove vestigial RESOLVE_CONTACT_POINTS config from MockResolverIT (DRIVER-201)

fix: resolve candidates via Netty's resolver and pin the connected address (DRIVER-201)

test: cover the removed local-DC contact-point check (CUSTOMER-588)

fix: do not pin an endpoint to the address it already holds (DRIVER-201)

Commits on Jul 30, 2026

refactor: make resolution a connection-layer concern, drop the EndPoint API addition (DRIVER-201)

test: assert on host strings, not resolved IPs, in ClientRoutesIT (DRIVER-201)

Commits on Jul 31, 2026

fix: complete the connect future on failures in resolver and bootstrap callbacks (DRIVER-201)

fix: preserve the queried hostname on resolver-returned addresses (DRIVER-201)

fix: stop trying further addresses after protocol-version rejection (DRIVER-201)

fix: resolve and connect on a single event loop per connection attempt (DRIVER-201)

fix: rotate a hostname's addresses with a per-name counter (DRIVER-201)

docs: pin down the afterBootstrapInitialized contract and warn on stray handlers (DRIVER-201)

test: drop the stale NETTY_DAEMON stub from ChannelFactoryTestBase (DRIVER-201)

fix: align pinTo type checks and no-op shortcuts across endpoint implementations (DRIVER-201)

Commits on Aug 3, 2026

fix: keep trying addresses of an unidentified endpoint after a version rejection (DRIVER-201)

fix: always preserve the queried hostname on resolver-returned addresses (DRIVER-201)

fix: scope the address rotation counters to the session and bound them (DRIVER-201)