Unknown blob in the repository: – How to solve related issues

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 run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

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 and 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 pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

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;
    }





 

Run the Check-Up to get a customized report like this:

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