Failed to close remote cluster connections for cluster: – 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 can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Failed to close remote cluster connections for cluster: ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: cluster.

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 close remote cluster connections for cluster:” classname is RemoteClusterService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                 ConnectionProfile connectionProfile = this.remoteClusterConnectionProfiles.get(clusterAlias);
                if (seedList.isEmpty()) { // with no seed nodes we just remove the connection
                    try {
                        IOUtils.close(remote);
                    } catch (IOException e) {
                        logger.warn("failed to close remote cluster connections for cluster: " + clusterAlias; e);
                    }
                    remoteClusters.remove(clusterAlias);
                    continue;
                }





 

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