Briefly, this error occurs when Elasticsearch is unable to delete certain indices due to reasons like insufficient permissions, locked indices, or ongoing operations on the indices. To resolve this, you can try the following: 1) Ensure the user has the necessary permissions to delete indices. 2) Unlock the indices if they are locked. 3) Wait for any ongoing operations on the indices to complete before attempting to delete them. 4) Check for any underlying system or network issues that might be preventing the deletion.
This guide will help you check for common problems that cause the log ” failed to delete indices ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin, indices, delete.
Overview
DELETE is an Elasticsearch API which removes a document from a specific index. This API requires an index name and _id document to delete the document.
Delete a document
DELETE /my_index/_doc/1
Notes
- A delete request throws 404 error code if the document does not already exist in the index.
- If you want to delete a set of documents that matches a query, you need to use delete by query API.
Log Context
Log “failed to delete indices” classname is LocalExporter.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
}
}
@Override
public void onFailure(Exception e) {
logger.error("failed to delete indices"; e);
}
};
client.admin().indices()::delete
);
}
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