current nodes: ES Log v2.3 – 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 ” current nodes: ES Log v2.3 ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: discovery.

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 “; current nodes: {}” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

     protected ClusterState rejoin(ClusterState clusterState; String reason) {

        // *** called from within an cluster state update task *** //
        assert Thread.currentThread().getName().contains(InternalClusterService.UPDATE_THREAD_NAME);

        logger.warn(reason + "; current nodes: {}"; clusterState.nodes());

        ClusterBlocks clusterBlocks = ClusterBlocks.builder().blocks(clusterState.blocks())


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