Failed to complete pending deletion for index – How to solve related issues

Opster Team

Jan-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 complete pending deletion for index ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster, index and indices.

Log Context

Log “[{}] failed to complete pending deletion for index” classname is IndicesClusterStateService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             }
            if (indexSettings != null) {
                threadPool.generic().execute(new AbstractRunnable() {
                    
Override
                    public void onFailure(Exception e) {
                        logger.warn(() -> new ParameterizedMessage("[{}] failed to complete pending deletion for index"; index); e);
                    }

                    
Override
                    protected void doRun() throws Exception {
                        try {


 

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