Failed to parse license - no content-type provided

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch tries to parse a license but fails because no content-type is provided. This usually happens when you’re trying to install a new license or update an existing one. To resolve this issue, ensure that you’re providing the correct content-type in your HTTP header when sending the request. For example, if you’re sending a JSON request, the content-type should be ‘application/json’. Also, check the format of your license file to ensure it’s correct.

This guide will help you check for common problems that cause the log ” failed to parse license – no content-type provided ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, license.

Log Context

Log “failed to parse license – no content-type provided” class name is License.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

public static License fromSource(BytesReference bytes; XContentType xContentType) throws IOException {

if (bytes == null || bytes.length() == 0) {

throw new ElasticsearchParseException("failed to parse license - no content provided");

}

if (xContentType == null) {

throw new ElasticsearchParseException("failed to parse license - no content-type provided");

}

// EMPTY is safe here because we don't call namedObject

try (

InputStream byteStream = bytes.streamInput();

XContentParser parser = xContentType.xContent()

public static License fromSource(BytesReference bytes; XContentType xContentType) throws IOException { if (bytes == null || bytes.length() == 0) { throw new ElasticsearchParseException("failed to parse license - no content provided"); } if (xContentType == null) { throw new ElasticsearchParseException("failed to parse license - no content-type provided"); } // EMPTY is safe here because we don't call namedObject try ( InputStream byteStream = bytes.streamInput(); XContentParser parser = xContentType.xContent()

 public static License fromSource(BytesReference bytes; XContentType xContentType) throws IOException {
 if (bytes == null || bytes.length() == 0) {
 throw new ElasticsearchParseException("failed to parse license - no content provided");
 }
 if (xContentType == null) {
 throw new ElasticsearchParseException("failed to parse license - no content-type provided");
 }
 // EMPTY is safe here because we don't call namedObject
 try (
 InputStream byteStream = bytes.streamInput();
 XContentParser parser = xContentType.xContent()

[ratemypost]

Failed to parse license – no content-type provided – How to solve this Elasticsearch exception

Log Context