ReindexPlugin reloadSPI called – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

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Briefly, this error occurs when the ReindexPlugin, a component of OpenSearch, attempts to reload the Service Provider Interface (SPI) but encounters an issue. This could be due to a variety of reasons such as a misconfiguration, a bug in the plugin, or an issue with the SPI itself. To resolve this issue, you could try updating or reinstalling the plugin, checking the configuration settings, or debugging the plugin to identify any potential issues. If the problem persists, consider reaching out to the OpenSearch community or the plugin provider for further assistance.

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This guide will help you check for common problems that cause the log ” ReindexPlugin reloadSPI called ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: index, plugin, reindex.

Log Context

Log “ReindexPlugin reloadSPI called” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        return settings;

    public void loadExtensions(ExtensionLoader loader) {"ReindexPlugin reloadSPI called");
        Iterable iterable = loader.loadExtensions(RemoteReindexExtension.class);
        List remoteReindexExtensionList = new ArrayList();
        if (remoteReindexExtensionList.isEmpty()) {
  "Unable to find any implementation for RemoteReindexExtension");


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