Expose the search-cluster node name on NodeInfo#26705
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The node stats adapter already fetches each node's name from the _nodes response but dropped it: NodeInfo carried only version, OS, roles, and heap, keyed by node id. The System Overview health panel's shard-count check needs to join per-node shard counts (keyed by node name, from _cat/allocation) with per-node heap (keyed by node id, from _nodes), and the only existing id-to-name bridge is a per-node round-trip. Populate the node name in the OpenSearch 2/3 and Elasticsearch 7 adapters so a single _nodes read carries it. Enables Graylog2/graylog-plugin-enterprise#14658. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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/nocl
/prd Graylog2/graylog-plugin-enterprise#14917
Description
The node stats adapter already fetches each search-cluster node's name from the
_nodesresponse but dropped it:NodeInfocarried only version, OS, roles, and heap, keyed by node id.The System Overview health panel's
shard_countcheck (Graylog2/graylog-plugin-enterprise#14658) needs to join per-node shard counts (keyed by node name, from_cat/allocation) with per-node heap (keyed by node id, from_nodes). The only existing id-to-name bridge,ClusterAdapter.nodeIdToName(), is a per-node round-trip. This change exposes the nodenameonNodeInfoso a single_nodesread carries it, populated in the OpenSearch 2/3 and Elasticsearch 7 adapters.Additive field on a serialize-only DTO, no behavior change on its own. Independent of other health-panel work and can merge standalone.
Dependencies
Based on #26625 - that PR needs to be merged first.
How Tested
ShardCountHealthReporterunit tests in Graylog2/graylog-plugin-enterprise#14658, which join shard allocation to heap on this field.