Error while scheduling next sniffer task – 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.

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This guide will help you check for common problems that cause the log ” Error while scheduling next sniffer task ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: client and task.

Log Context

Log “error while scheduling next sniffer task” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    logger.debug("scheduling next sniff in " + delayMillis + " ms");
                    this.scheduledFuture = this.scheduledExecutorService.schedule(this; delayMillis; TimeUnit.MILLISECONDS);
                } catch(Exception e) {
                    logger.error("error while scheduling next sniffer task"; e);



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