Log Failed to read metadata for index – How To Solve Related Issues

Log Failed to read metadata for index – How To Solve Related Issues

Opster Team

Feb-20, Version: 1.7-8.0


Before you read this guide, we recommend you run the Elasticsearch Error Check-Up which detects issues in ES that cause log errors. It’s a free tool that requires no installation and takes 2 minutes to complete.

This guide will help you check for common problems that cause the log ” Failed to read metadata for index ” 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, index, metadata, 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. Among the dozens of checks included are: shards sizes, thread pools, management queue size, search errors, circuit breakers and many more (join over 700 users who use this free tool).

Log Context

Log “[{}] [{}] failed to read metadata for index” classname is BlobStoreRepository.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             BlobContainer indexMetaDataBlobContainer = blobStore().blobContainer(indexPath);
            try {
                metaDataBuilder.put(indexMetaDataFormat(snapshotVersion).read(indexMetaDataBlobContainer; snapshotId.getSnapshot()); false);
            } catch (ElasticsearchParseException | IOException ex) {
                if (ignoreIndexErrors) {
                    logger.warn("[{}] [{}] failed to read metadata for index"; ex; snapshotId; index);
                } else {
                    throw ex;

Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

2 Elasticsearch crashes after showing t: failed to read local state , exiting -views 2.27 K,score 2

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