Corrupted file detected checksum mismatch – How to solve related issues

Corrupted file detected checksum mismatch – 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 ” Corrupted file detected checksum mismatch ” 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: discovery-file, handler, indices, recovery and source.

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 “{} Corrupted file detected {} checksum mismatch” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

    private void handleErrorOnSendFiles(Store store; StoreFileMetaData md; Exception e) throws Exception {
        final IOException corruptIndexException;
        if ((corruptIndexException = ExceptionsHelper.unwrapCorruption(e)) != null) {
            if (store.checkIntegrityNoException(md) == false) { // we are corrupted on the primary -- fail!
                logger.warn("{} Corrupted file detected {} checksum mismatch"; shardId; md);
                throw corruptIndexException;
            } else { // corruption has happened on the way to replica
                RemoteTransportException exception = new RemoteTransportException(
                    "File corruption occurred on recovery but checksums are ok"; null);


Run the Check-Up to get customized recommendations like this:


The high disk watermark threshold is about to be reached in specific nodes



There are various “watermark” thresholds on each Elasticsearch cluster. When the high disk watermark threshold has been exceeded, it means disk space is running out. The node will…



Based on your specific ES deployment you should…


X-PUT curl -H [a customized code snippet to resolve the issue]

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