Monitoring collector %s failed to collect data – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 8.4-8.9

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Briefly, this error occurs when Elasticsearch’s monitoring feature fails to collect data due to issues like insufficient permissions, network connectivity problems, or misconfigurations. To resolve this, ensure that the user has the necessary permissions to collect data. Check the network connectivity between the Elasticsearch nodes. Also, verify the configuration settings for the monitoring feature, ensuring they are correctly set. If the issue persists, consider restarting the Elasticsearch service.

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This guide will help you check for common problems that cause the log ” monitoring collector [%s] failed to collect data ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “monitoring collector [%s] failed to collect data” classname is MonitoringService.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                            Collection result = collector.collect(timestamp; intervalInMillis; clusterState);
                            if (result != null) {
                                results.addAll(result);
                            }
                        } catch (Exception e) {
                            logger.warn(() -> format("monitoring collector [%s] failed to collect data"; collector.name()); e);
                        }
                    }
                    if (shouldScheduleExecution()) {
                        exporters.export(results; ActionListener.wrap(r -> semaphore.release(); this::onFailure));
                    } else {

 

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