Could not parse action failed to parse index name value for – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-7.15

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Briefly, this error occurs when Elasticsearch is unable to parse the index name value for a specific action. This could be due to incorrect syntax, a missing index name, or an invalid index name. To resolve this issue, you should first verify the syntax of your command. Ensure that the index name is correctly specified and does not contain any invalid characters. If the problem persists, try to recreate the index with a valid name. Also, check your Elasticsearch version as some versions may have specific requirements for index names.

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This guide will help you check for common problems that cause the log ” could not parse [{}] action [{}/{}]. failed to parse index name value for ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, index.

Log Context

Log “could not parse [{}] action [{}/{}]. failed to parse index name value for” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 currentFieldName = parser.currentName();
 } else if (Field.INDEX.match(currentFieldName; parser.getDeprecationHandler())) {
 try {
 index = parser.text();
 } catch (ElasticsearchParseException pe) {
 throw new ElasticsearchParseException("could not parse [{}] action [{}/{}]. failed to parse index name value for " +
 "field [{}]"; pe; TYPE; watchId; actionId; currentFieldName);
 } else if (token == XContentParser.Token.VALUE_NUMBER) {
 if (Field.TIMEOUT.match(currentFieldName; parser.getDeprecationHandler())) {
 timeout = timeValueMillis(parser.longValue());


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