Failed to connect to requesting node – 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 analyzes 2 JSON files to detect many errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” Failed to connect to requesting node ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: discovery, discovery-multicast, node, ping and Plugin.

Log Context

Log “failed to connect to requesting node {}” classname is MulticastZenPing.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                                     logger.warn("failed to receive confirmation on sent ping response to [{}]"; exp; requestingNode);
                                }
                            });
                        } catch (Exception e) {
                            if (lifecycle.started()) {
                                logger.warn("failed to connect to requesting node {}"; e; requestingNode);
                            }
                        }
                    }
                });
            } else {




 

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