Log Corrupted file detected checksum mismatch – How To Solve Related Issues

Log 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 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 “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, 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 discover the cause of many errors and provides suitable actionable recommendations. 

Log Context

Log”{} Corrupted file detected {} checksum mismatch” classname is RecoverySourceHandler.java
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);


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 :

1 Github Issue Number 9140  

Github Issue Number 8827  


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