Translog directory ” + translogPath + “; must exist and be a directory – How to solve this Elasticsearch error

Opster Team

March-22, 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 ” translog directory ” + translogPath + “; must exist and be a directory ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: shard, index.

Log Context

Log “translog directory [” + translogPath + “]; must exist and be a directory”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

findAndProcessShardPath(options; environment; dataPaths; clusterState; shardPath -> {
 final Path indexPath = shardPath.resolveIndex();
 final Path translogPath = shardPath.resolveTranslog();
 if (Files.exists(translogPath) == false || Files.isDirectory(translogPath) == false) {
 throw new ElasticsearchException("translog directory [" + translogPath + "]; must exist and be a directory");
 final PrintWriter writer = terminal.getWriter();
 final PrintStream printStream = new PrintStream(new OutputStream() {


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