Failed to clean store before starting shard – 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 can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Failed to clean store before starting shard ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index and shard.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up to analyze Elasticsearch configuration and help resolve this error.

Log Context

Log “failed to clean store before starting shard” classname is NoneIndexShardGateway.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         indexShard.store().incRef();
        try {
            logger.debug("cleaning shard content before creation");
            Lucene.cleanLuceneIndex(indexShard.store().directory());
        } catch (IOException e) {
            logger.warn("failed to clean store before starting shard"; e);
        } finally {
            indexShard.store().decRef();
        }
        recoveryState.getTranslog().totalOperations(0);
        recoveryState.getTranslog().totalOperationsOnStart(0);




 

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