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How To Solve Issues Related to Log – Failed to delete file during snapshot cleanup

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Updated: Jan-20

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Troubleshooting background

To troubleshoot Elasticsearch log “Failed to delete file during snapshot cleanup” it’s important to understand common problems related to Elasticsearch concepts: blobstore, delete, discovery-file, repositories, restore, snapshot. See detailed explanations below complete with common problems, examples and useful tips.

DELETE Elasticsearch API

What is it

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.

To help troubleshoot related issues we have gathered selected Q&A from the community and issues from Github , please review the following for further information :

1 Ven Failed To Clean Project Failed  

2Github Issue Number 27061  

Log Context

Log ”[{}] [{}] failed to delete file [{}] during snapshot cleanup” classname is FileRestoreContext.java
We have extracted the following from Elasticsearch source code to get 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);
            }

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