Briefly, this error occurs when an Elasticsearch pipe operation is given more or less than one argument. Pipes are used to pass the output of one operation as input to another. If the pipe operation doesn’t receive exactly one argument, it will throw this error. To resolve this issue, ensure that each pipe operation in your Elasticsearch query has exactly one argument. Check your syntax and the structure of your query to ensure that you’re not missing any arguments or providing too many.
This guide will help you check for common problems that cause the log ” Pipe [{}] expects exactly one argument but found [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: parser, plugin.
Log Context
Log “Pipe [{}] expects exactly one argument but found [{}]” class name is LogicalPlanBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
} private Expression onlyOnePipeArgument(Source source; String pipeName; Listexps) { int size = CollectionUtils.isEmpty(exps) ? 0 : exps.size(); if (size != 1) { throw new ParsingException(source; "Pipe [{}] expects exactly one argument but found [{}]"; pipeName; size); } return expression(exps.get(0)); } private Expression pipeIntArgument(Source source; String pipeName; List exps) {
[ratemypost]
