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zhengxiu 93d856d5c5 css umn 25.6.0 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: zhengxiu <zhengxiu@huawei.com>
Co-committed-by: zhengxiu <zhengxiu@huawei.com>
2025-11-25 11:34:43 +00:00

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What Does the Value i for node.roles Mean for Nodes in an Elasticsearch Cluster of CSS?

Function

If the value of node.roles of a client node is i, then is this client node an ingest node?
  • Are there coordinating only nodes in clusters? Are the client requests distributed to coordinating nodes?
  • Are ingest nodes in idle state when there are no ingest requests?

Solution

If the value of node.roles of a client node is i, the ingest node mode is enabled.

  • The coordinating only nodes of Elasticsearch are called client nodes in CSS. If a cluster has no client nodes, client requests will be distributed to all nodes.
  • An ingest node functions as a set of ELK for data conversion. If there is no ingest requests, ingest nodes are not in the idle state.