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

Opster Team

March-22, Version: 1.7-8.0

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This guide will help you check for common problems that cause the log ” index directory ” + indexPath + “; 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 “index directory [” + indexPath + “]; must exist and be a directory”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

final Path path = getPath(folderOption.value(options)).getParent();
 final Path shardParent = path.getParent();
 final Path shardParentParent = shardParent.getParent();
 final Path indexPath = path.resolve(ShardPath.INDEX_FOLDER_NAME);
 if (Files.exists(indexPath) == false || Files.isDirectory(indexPath) == false) {
 throw new ElasticsearchException("index directory [" + indexPath + "]; must exist and be a directory");
 final String shardIdFileName = path.getFileName().toString();
 final String indexUUIDFolderName = shardParent.getFileName().toString();
 if (Files.isDirectory(path)


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