Join target is not initialised yet – How to solve this Elasticsearch error

Opster Team

July-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” join target is not initialised yet ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: join and 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 “join target is not initialised yet”classname  is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

static class InitialJoinAccumulator implements JoinAccumulator {
 public void handleJoinRequest(DiscoveryNode sender; JoinCallback joinCallback) {
 assert false : "unexpected join from " + sender + " during initialisation";
 joinCallback.onFailure(new CoordinationStateRejectedException("join target is not initialised yet"));
 public String toString() {
 return "InitialJoinAccumulator";


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