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Briefly, this error occurs when OpenSearch fails to delete a specific file during the process of snapshot cleanup. This could be due to insufficient permissions, a locked file, or a disk space issue. To resolve this, you can try the following: 1) Check and modify the file permissions if necessary, 2) Ensure the file is not being used or locked by another process, 3) Free up disk space if it’s running low, and 4) Check the health of your file system as it might be corrupted.
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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 OpenSearch concepts: repositories, delete, snapshot, blobstore.
Overview
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 OpenSearch 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);
}
