Translog header corrupted – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when the transaction log (translog) of Elasticsearch, which records all operations in your cluster, is damaged or unreadable. This could be due to a system crash, disk failure, or a bug in Elasticsearch. To resolve this issue, you can try to restore the data from a snapshot if you have one. If not, you may need to delete the corrupted translog files and restart the Elasticsearch node. However, be aware that deleting translog files can lead to data loss. It’s also recommended to investigate the root cause to prevent future occurrences.

This guide will help you check for common problems that cause the log ” translog header corrupted ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “translog header corrupted” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 static int readHeaderVersion(final Path path; final FileChannel channel; final StreamInput in) throws IOException {
 final int version;
 try {
 version = CodecUtil.checkHeader(new InputStreamDataInput(in); TRANSLOG_CODEC; VERSION_PRIMARY_TERM; VERSION_PRIMARY_TERM);
 } catch (CorruptIndexException | IndexFormatTooOldException | IndexFormatTooNewException e) {
 throw new TranslogCorruptedException(path.toString(); "translog header corrupted"; e);
 return version;
 }  /**


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