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Briefly, this error occurs when you are trying to create or manage a group in Elasticsearch with a name that doesn’t comply with the naming conventions. The group name might contain invalid characters or exceed the maximum length. To resolve this issue, ensure that the group name adheres to the Elasticsearch naming rules. It should not contain any special characters and should be within the allowed length. Also, check if the group name is not already in use. If it is, choose a unique name.
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This guide will help you check for common problems that cause the log ” Invalid group name [ ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.
Log Context
Log “Invalid group name [” class name is GroupConfig.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) { ensureExpectedToken(XContentParser.Token.FIELD_NAME; token; parser::getTokenLocation);
String destinationFieldName = parser.currentName();
if (validAggMatcher.reset(destinationFieldName).matches() == false) {
throw new ParsingException(parser.getTokenLocation(); "Invalid group name [" + destinationFieldName
+ "]. Group names can contain any character except '['; ']'; and '>'");
} token = parser.nextToken();
ensureExpectedToken(XContentParser.Token.START_OBJECT; token; parser::getTokenLocation);
