From: Oguzhan Ozmen Date: Tue, 24 Mar 2026 17:54:22 +0000 (+0000) Subject: doc: add PendingReleaseNotes entry for rgw multisite DNS endpoint resolution X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=fe6af7fc85d47ad25fb77e1728b0eb100c208129;p=ceph.git doc: add PendingReleaseNotes entry for rgw multisite DNS endpoint resolution Documents the new rgw_rest_conn_connect_to_resolved_ips feature that enables RGW to resolve HTTP endpoints for RGW services such as multisite, into all IP addresses and distribute requests across them using round-robin with per-IP health tracking, supporting DNS service discovery deployments without external load balancers. Signed-off-by: Oguzhan Ozmen --- diff --git a/PendingReleaseNotes b/PendingReleaseNotes index 2eb6e6be2e8..f53c1eac16c 100644 --- a/PendingReleaseNotes +++ b/PendingReleaseNotes @@ -100,6 +100,17 @@ than instantly aborting I/O and returning an error. It's possible to switch from ``RBD_LOCK_MODE_EXCLUSIVE`` to ``RBD_LOCK_MODE_EXCLUSIVE_TRANSIENT`` policy and vice versa even if the lock is already held. +* RGW: In multisite deployments, zone endpoints configured in the zonegroup + (e.g. ``https://zone-a.example.com``) can now be resolved to all IP addresses + returned by DNS, with inter-zone traffic distributed across them using + round-robin and per-IP health tracking. This enables DNS-based service discovery + for inter-zone traffic without an external load balancer. This feature is disabled + by default: to opt in, set ``rgw_rest_conn_connect_to_resolved_ips = true``. The + per-IP retry-after-failure timeout is controlled by ``rgw_rest_conn_ip_fail_timeout_secs`` + (default: 2 seconds). Deployments that work around libcurl's single-address behavior + by repeating the same endpoint multiple times in zone configuration should review that + setup before enabling, as round-robin distribution makes such duplication unnecessary. + * OSD: A health warning is reported when BlueFS usage exceeds the configured ratio of the main OSD data device size. This warning is informational and can be muted with: