Error Log: MasterNotDiscoveredException – The cluster’s lost leader
Error Log: You’ll frequently see this in node logs when a node is attempting to join a cluster or reconnect: master not discovered yet, this node has...... Read more.
Error Log: index_not_found_exception – The missing index
Error Log: This is a very clear and common error, seen in both client logs and API responses. org.opensearch.index.IndexNotFoundException: no such index Or in a... Read more.
Error Log: mapper_parsing_exception – The “wrong data type” error
Error Log: This error happens during indexing (writing a document) and is a very common part of a bulk request failure: { "error" : { "root_cause" : [ { "type"...... Read more.
Error Log: HTTP 429 “Too many requests” (and EsRejectedExecutionException) – Overloaded cluster
Error Log: When your client application sends too many requests too quickly, it receives an HTTP 429 status code. HTTP/1.1 429 Too Many Requests Content-Type: application/json... Read more.
Error Log: “Authentication failed for a specific user” – The login failure
Error Log: This is a common error from the OpenSearch Security plugin, found in your opensearch.log files when a login attempt fails. None Authentication failed... Read more.
Error Log: “AuthorizationException: User lacks permissions” – The access denied error
Error Log: This error occurs after a user has successfully authenticated (logged in) but then tries to perform an action they are not allowed to do. None ...... Read more.
Error Log: SSLHandshakeException – The insecure connection
Error Log: You will see this error in your client application’s logs (e.g., Logstash, Filebeat, your custom code) when it tries to connect to your cluster’s... Read more.
Error Log: Circuit_breaking_exception – Data too large!
Error Log: This error occurs when OpenSearch detects that an operation (often a search query with aggregations) would consume too much memory, potentially causing... Read more.
Error Log: Search_phase_execution_exception – The vague search failure
Error Log: This is a high-level wrapper error. It will appear as the main type in an error response, but the real details are inside the root_cause. JSON { "error":...... Read more.
Error Log: “failed to parse query” parsing_exception – The syntax error
Error Log: This error is usually found inside the root_cause of a SearchPhaseExecutionException. JSON { "error": { "root_cause": query malformed, no start_object... Read more.
