Briefly, this error occurs when Elasticsearch encounters an object or a command that it doesn’t recognize or know how to process. This could be due to a syntax error, incorrect command, or unsupported operation. To resolve this issue, you can: 1) Check your command or query for any syntax errors and correct them. 2) Ensure that the operation or command you’re trying to execute is supported by your version of Elasticsearch. 3) If you’re trying to process an object, make sure it’s in a format that Elasticsearch can understand.
This guide will help you check for common problems that cause the log ” Does not know how to handle {} ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: parser, plugin.
Log Context
Log “Does not know how to handle {}” class name is AbstractBuilder.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
} @Override
public Object visitTerminal(TerminalNode node) {
Source source = source(node);
throw new ParsingException(source; "Does not know how to handle {}"; source.text());
} }
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