Could not parse month times expected an object but found – 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 tries to parse a date but encounters an unexpected format. The system expects an object with a specific structure for date-time data, but instead, it finds an empty object or a different format. To resolve this issue, you can: 1) Check the data you’re trying to index and ensure the date format matches the expected format. 2) Modify your mapping to correctly interpret the date format you’re using. 3) Use a date processor in an ingest pipeline to transform the date into a format Elasticsearch can understand.

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This guide will help you check for common problems that cause the log ” could not parse month times. expected an object; but found [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “could not parse month times. expected an object; but found [{}]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 return new Builder();
 }  public static MonthTimes parse(XContentParser parser; XContentParser.Token token) throws IOException; ElasticsearchParseException {
 if (token != XContentParser.Token.START_OBJECT) {
 throw new ElasticsearchParseException("could not parse month times. expected an object; but found [{}]"; token);
 Set daysSet = new HashSet<>();
 Set timesSet = new HashSet<>();
 String currentFieldName = null;
 while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {


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