Cannot parse entry in options – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

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Briefly, this error occurs when Elasticsearch is unable to parse a specific entry in the provided options due to incorrect syntax or format. This could be due to a missing key, incorrect data type, or a malformed JSON object. To resolve this issue, you should first verify the syntax and format of your entries. Ensure that all keys are present and the data types are correct. If the problem persists, check if the JSON object is correctly formed and doesn’t contain any invalid characters or misplaced brackets.

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This guide will help you check for common problems that cause the log ” Cannot parse entry {} in options {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “Cannot parse entry {} in options {}” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 Map op = Maps.newLinkedHashMapWithExpectedSize(list.length);  for (String entry : list) {
 String[] split = splitInTwo(entry; "=");
 if (split == null) {
 throw new ParsingException(source; "Cannot parse entry {} in options {}"; entry; options);
 }  String previous = op.put(split[0]; split[1]);
 if (previous != null) {
 throw new ParsingException(source; "Duplicate option {} detected in options {}"; entry; options);


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