Sukchan Lee 9c370ff89a [PFCP] Reduce DNS spam for FQDN nodes (#3431) (#3664) ...

Each received PFCP message triggered ogs_pfcp_node_find(), causing a DNS
resolution if node_id was FQDN. Under heavy traffic, this could lead to
excessive DNS queries.

- Implement a 300-second refresh interval to avoid repeated DNS lookups.
- Store last_dns_refresh in each node to defer new queries until needed.
- Treat config-based nodes with no Node ID as UNKNOWN, matching them by IP
  alone until ogs_pfcp_node_merge() updates their ID.
- Validate IPv4, IPv6, or FQDN types in ogs_pfcp_node_merge() and reject
  invalid IDs.
- Provide inline code comments for clarity and maintainability.

2025-01-18 12:15:00 +09:00

4.4 KiB

Raw Blame History

View Raw