Error while sniffing nodes – 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 ” Error while sniffing nodes ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: client.

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 “Error while sniffing nodes” classname is Sniffer.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                 return;
            }
            try {
                sniff();
            } catch (Exception e) {
                logger.error("error while sniffing nodes"; e);
            } finally {
                Task task = new Task(sniffIntervalMillis);
                Future> future = scheduler.schedule(task; nextTaskDelay);
                //tasks are run by a single threaded executor; so swapping is safe with a simple volatile variable
                ScheduledTask previousTask = nextScheduledTask;




 

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