Briefly, this error occurs when the Elasticsearch setting “auto_create_index” contains a negative value. This setting controls whether Elasticsearch should automatically create an index when a document is indexed into a non-existing index. A negative value is invalid. To resolve this issue, you can either set the value to true, allowing automatic index creation, or false, disallowing it. Alternatively, you can specify a list of index names for which automatic creation should be allowed or disallowed.
This guide will help you check for common problems that cause the log ” [” + AUTO_CREATE_INDEX_SETTING.getKey() + “] contains [- ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: .
Log Context
Log “[” + AUTO_CREATE_INDEX_SETTING.getKey() + “] contains [-” class name is AutoCreateIndex.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
boolean include = expression.v2();
if (Regex.simpleMatch(indexExpression; index)) {
if (include) {
return true;
}
throw new IndexNotFoundException("[" + AUTO_CREATE_INDEX_SETTING.getKey() + "] contains [-"
+ indexExpression + "] which forbids automatic creation of the index"; index);
}
}
throw new IndexNotFoundException("[" + AUTO_CREATE_INDEX_SETTING.getKey() + "] ([" + autoCreate
+ "]) doesn't match"; index);
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