Briefly, this error occurs when the VERIFY command is used more than once in an Elasticsearch query. Elasticsearch commands should be used only once per query to avoid confusion and errors. To resolve this issue, you should review your query and ensure that the VERIFY command is used only once. If it appears more than once, remove the extra instances. Also, ensure that the syntax and structure of your query are correct to prevent further errors.
This guide will help you check for common problems that cause the log ” Explain VERIFY should be specified at most once ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: parser, plugin.
Log Context
Log “Explain VERIFY should be specified at most once” class name is CommandBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
}
if (ctx.FORMAT().size() > 1) {
throw new ParsingException(source; "Explain FORMAT should be specified at most once");
}
if (ctx.VERIFY().size() > 1) {
throw new ParsingException(source; "Explain VERIFY should be specified at most once");
} Explain.Type type = null; if (ctx.type != null) {
