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Briefly, this error occurs when the OpenSearch cluster fails to communicate with a specific node identified by nodeId(). This could be due to network issues, node failure, or the node being overwhelmed with requests. To resolve this, you can try the following: 1) Check the network connectivity between the nodes. 2) Verify the status of the node and restart it if necessary. 3) Monitor the load on the node and adjust the cluster settings to distribute the load more evenly. 4) Check the node logs for any specific errors and address them.
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This guide will help you check for common problems that cause the log ” Failed to query node [” + failure.nodeId() + “] ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: delete, query, indices, node, admin, dangling.
Overview
Delete a document
DELETE /my_index/_doc/1
Notes
- A delete request throws 404 error code if the document does not already exist in the index.
- If you want to delete a set of documents that matches a query, you need to use delete by query API.
Log Context
Log “Failed to query node [” + failure.nodeId() + “]” classname is TransportDeleteDanglingIndexAction.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
.map(FailedNodeException::nodeId)
.collect(Collectors.joining(";"));
OpenSearchException e = new OpenSearchException("Failed to query nodes [" + nodeIds + "]");
for (FailedNodeException failure : response.failures()) {
logger.error("Failed to query node [" + failure.nodeId() + "]"; failure);
e.addSuppressed(failure);
}
listener.onFailure(e);
return;
