Checksum verification failed – expected: 0x – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” checksum verification failed – expected: 0x ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “checksum verification failed – expected: 0x”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

static void verifyChecksum(BufferedChecksumStreamInput in) throws IOException {
 // This absolutely must come first; or else reading the checksum becomes part of the checksum
 long expectedChecksum = in.getChecksum();
 long readChecksum = Integer.toUnsignedLong(in.readInt());
 if (readChecksum != expectedChecksum) {
 throw new TranslogCorruptedException(in.getSource(); "checksum verification failed - expected: 0x" +
 Long.toHexString(expectedChecksum) + "; got: 0x" + Long.toHexString(readChecksum));


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