Briefly, this error occurs when Elasticsearch is unable to find a specified value in the mappings for the meta field. This could be due to incorrect or missing mapping definitions. To resolve this issue, you can check your mapping definitions to ensure they are correct and complete. If the mapping is missing, you need to add it. If it’s incorrect, you need to correct it. Also, ensure that the field you’re searching for actually exists in your index. If not, you may need to reindex your data with the correct mappings.
This guide will help you check for common problems that cause the log ” No value found in mappings for [_meta.{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: indices.
Log Context
Log “No value found in mappings for [_meta.{}]” classname is SystemIndexManager.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
// version here. We should just replace the template to be sure.
return Version.V_EMPTY;
}
final String versionString = rawVersion != null ? rawVersion.toString() : null;
if (versionString == null) {
logger.warn("No value found in mappings for [_meta.{}]"; descriptor.getVersionMetaKey());
// If we called `Version.fromString(null)`; it would return `Version.CURRENT` and we wouldn't update the mappings
return Version.V_EMPTY;
}
return Version.fromString(versionString);
} catch (ElasticsearchParseException e) {
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