Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many errors.
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This guide will help you check for common problems that cause the log ” Failed to delete file during snapshot cleanup ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: blobstore, delete, discovery-file, repositories and restore.
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 file [{}] during snapshot cleanup” classname is FileRestoreContext.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
}
try {
store.deleteQuiet("restore"; storeFile);
store.directory().deleteFile(storeFile);
} catch (IOException e) {
logger.warn("[{}] [{}] failed to delete file [{}] during snapshot cleanup"; shardId; snapshotId; storeFile);
}
}
} catch (IOException e) {
logger.warn("[{}] [{}] failed to list directory - some of files might not be deleted"; shardId; snapshotId);
}
Find & fix Elasticsearch problems
