Failed to load state file from a stale deleted index. folders will be left on disk – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many 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 ” Failed to load state file from a stale deleted index. folders will be left on disk ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: discovery-file and indices.

Log Context

Log “[{}] failed to load state file from a stale deleted index; folders will be left on disk” classname is IndicesService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         if (nodeEnv.hasNodeFile() && FileSystemUtils.exists(nodeEnv.indexPaths(index))) {
            final IndexMetaData metaData;
            try {
                metaData = metaStateService.loadIndexState(index);
            } catch (IOException e) {
                logger.warn((Supplier>) () -> new ParameterizedMessage("[{}] failed to load state file from a stale deleted index; folders will be left on disk"; index); e);
                return null;
            }
            final IndexSettings indexSettings = buildIndexSettings(metaData);
            try {
                deleteIndexStoreIfDeletionAllowed("stale deleted index"; index; indexSettings; ALWAYS_TRUE);




 

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