Reloading analyzers for index shard – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 7.3-8.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your Elasticsearch operation.

Briefly, this error occurs when Elasticsearch is trying to reload the analyzers for a specific index shard. This could be due to changes in the analyzer configuration or a system error. To resolve this issue, you can try the following: 1) Check the analyzer configuration for any errors and correct them. 2) Restart the Elasticsearch node to clear any temporary system errors. 3) If the problem persists, consider reindexing the data. Remember to backup your data before reindexing to prevent data loss.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” reloading analyzers for index shard ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: indices, admin, index, shard.

Log Context

Log “reloading analyzers for index shard ” classname is TransportReloadAnalyzersAction.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

        ShardRouting shardRouting;
        Task task;
        ActionListener listener
    ) {
        ActionListener.completeWith(listener; () -> {
            logger.info("reloading analyzers for index shard " + shardRouting);
            IndexService indexService = indicesService.indexService(shardRouting.index());
            List reloadedSearchAnalyzers = indexService.mapperService().reloadSearchAnalyzers(indicesService.getAnalysis());
            return new ReloadResult(shardRouting.index().getName(); shardRouting.currentNodeId(); reloadedSearchAnalyzers);
        });
    }

 

How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?