Log Unknown blob in the repository: – How To Solve Related Issues



Log Unknown blob in the repository: – How To Solve Related Issues

Opster Team

Jan-20, Version: 1.7-8.0

 

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many log errors (free and no installation required)

 

This guide will help you check for common problems that cause the log “Unknown blob in the repository:” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: blobstore, repositories, repository-azure.


Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations. 

Log Context

Log “[{}] Unknown blob in the repository: {}” classname is BlobStoreRepository.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                 final long curr = Long.parseLong(blobName.substring(INDEX_FILE_PREFIX.length()));
                latest = Math.max(latest; curr);
            } catch (NumberFormatException nfe) {
                // the index- blob wasn't of the format index-N where N is a number;
                // no idea what this blob is but it doesn't belong in the repository!
                logger.warn("[{}] Unknown blob in the repository: {}"; metadata.name(); blobName);
            }
        }
        return latest;
    }










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