Remote clusters initialization failed partially – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 2.9-2.9

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Briefly, this error occurs when OpenSearch is unable to fully initialize the remote clusters. This could be due to network issues, incorrect configuration, or the remote clusters being unavailable. To resolve this issue, you can check the network connectivity between the clusters, verify the configuration settings for the remote clusters, and ensure that the remote clusters are up and running. Additionally, checking the OpenSearch logs can provide more detailed information about the specific cause of the error.

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This guide will help you check for common problems that cause the log ” Remote clusters initialization failed partially ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: .

Log Context

Log “Remote clusters initialization failed partially” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

        if (remoteClusterClient) {
            // here we start to connect to the remote clusters
                    r ->"Remote clusters initialized successfully.");
                    e -> logger.error("Remote clusters initialization failed partially"; e)


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