On 22/12/2020 13:25, [email protected] wrote:
Hi. I am running node_exporter version 0.18.1 on around 2500 servers.
On some of the servers I am observing that node_exporter is throwing
error intermittently for sending the metrics to Prometheus server.
Dec 22 17:10:29 hostname node_exporter[10807]:
time="2020-12-22T17:10:29+05:30" level=error msg="error encoding and
sending metric family: write tcp ServerIP:9100->PrometheusIP:40984:
write: broken pipe\n" source="log.go:172"
Dec 22 17:10:29 hostname node_exporter[10807]:
time="2020-12-22T17:10:29+05:30" level=error msg="error encoding and
sending metric family: write tcp ServerIP:9100->PrometheusIP:40984:
write: broken pipe\n" source="log.go:172"
Dec 22 17:10:29 hostname node_exporter[10807]: 2020/12/22 17:10:29
http: superfluous response.WriteHeader call from
github.com/prometheus/client_golang/prometheus/promhttp.(*responseWriterDelegator).WriteHeader
(delegator.go:59)
That suggests the Prometheus server disconnected before all the data was
returned. What do the Prometheus logs at that time say? Are there any
firewalls between the two that could have broken the connection?
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