elasticsearch/docs/reference/migration/migrate_8_0/discovery.asciidoc

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[[breaking_80_discovery_changes]]
=== Discovery changes
//NOTE: The notable-breaking-changes tagged regions are re-used in the
//Installation and Upgrade Guide
//tag::notable-breaking-changes[]
// end::notable-breaking-changes[]
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==== Removal of old discovery settings
All settings under the `discovery.zen` namespace, which existed only for BWC reasons in 7.x,
will no longer be supported. In particular, this includes:
- `discovery.zen.no_master_block`
- `discovery.zen.hosts_provider`
- `discovery.zen.publish_timeout`
- `discovery.zen.commit_timeout`
- `discovery.zen.publish_diff.enable`
- `discovery.zen.ping.unicast.concurrent_connects`
- `discovery.zen.ping.unicast.hosts.resolve_timeout`
- `discovery.zen.ping.unicast.hosts`
- `discovery.zen.unsafe_rolling_upgrades_enabled`
- `discovery.zen.commit_timeout`
- `discovery.zen.fd.connect_on_network_disconnect`
- `discovery.zen.fd.ping_interval`
- `discovery.zen.fd.ping_timeout`
- `discovery.zen.fd.ping_retries`
- `discovery.zen.fd.register_connection_listener`
- `discovery.zen.join_retry_attempts`
- `discovery.zen.join_retry_delay`
- `discovery.zen.max_pings_from_another_master`
- `discovery.zen.send_leave_request`
- `discovery.zen.master_election.wait_for_joins_timeout`
- `discovery.zen.master_election.ignore_non_master_pings`
- `discovery.zen.publish.max_pending_cluster_states`