Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
Take a self-guided product tour to see for yourself (no registration required).This guide will help you check for common problems that cause the log ” Value must be of type Map: ” + parameterName + ” ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “Value must be of type Map: [” + parameterName + “]”classname is Script.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :
}
} else if (Script.PARAMS_PARSE_FIELD.match(parameterName; LoggingDeprecationHandler.INSTANCE)) {
if (parameterValue instanceof Map || parameterValue == null) {
params = (Map) parameterValue;
} else {
throw new ElasticsearchParseException("Value must be of type Map: [" + parameterName + "]");
}
} else if (Script.OPTIONS_PARSE_FIELD.match(parameterName; LoggingDeprecationHandler.INSTANCE)) {
if (parameterValue instanceof Map || parameterValue == null) {
options = (Map) parameterValue;
} else {
Find & fix Elasticsearch problems
