Reliable Insights

A blog on monitoring, scale and operational Sanity

June 1, 2020

Debugging out of order samples

How do you debug and resolve the "Error on ingesting out-of-order samples" warning from Prometheus?

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April 22, 2019

Using snmpbulkwalk to debug snmp_exporter issues

Many problems with the snmp_exporter turn out to actually be issues elsewhere, but how can you tell?

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February 11, 2019

“INVALID” is not a valid start token and other scrape errors

What can you do to pin down metrics-parsing related scrape errors in Prometheus?

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October 22, 2018

Debugging Blackbox exporter failures

Ever wanted more information about Blackbox probe failures?

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August 19, 2015

Viewing Logs for the JMX Exporter

Sometimes mBeans produce errors when scraped by the JMX exporter. Being able to look at detailed logs can help you figure out exactly which mBean is having issues and why.

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