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License: Apache License 2.0
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rafael-0317 mikich chemist jmuhbagir boiler ithacadream datatamer wrouesnel kockockockoc yuxianzhi xtruder epilet harisrinivaas yanjiegao zz willcup fnzv vantinhuynh chancez wangbokun sekikn thinker0 miono tongxin1994 yuriymalygin kimkkikki phenixmzy suhanovv messi655 csghuser shashank734 mtulio ahbll kabitionno sangrho darklore wtx626 tuxnotes corersky maskjs jooper woorigel qianxiaozhoutao quyetmv acrowise oushu1dengxingchen1 a-why-not-fork-repositories-good-luckhadoop_exporter's Issues
"nil pointer dereference" exception in exporter's Collect func resp.Body.Close() when http connection failed with connection refused
- unchecked resp.Body (or resp?!) in namenode exporter:
https://github.com/wyukawa/hadoop_exporter/blob/master/namenode_exporter.go#L169 - unchecked resp.Body (or resp?!) in journalnode exporter:
https://github.com/Datatamer/hadoop_exporter/blob/master/journalnode/journalnode_exporter.go#L99
bug detected in journalnode-exporter (shares exact same logic) from Datatamer fork.
Before the stacktrace below, got a useful error log that shows the export got a connection refused, just before the NIL pointer exception:
time="2017-10-23T08:33:52Z" level=error msg="Get http://localhost:8480/jmx: dial tcp 127.0.0.1:8480: getsockopt: connection refused" file="journalnode_exporter.go" line=97
exception full stack trace:
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x402c8b]
goroutine 335365 [running]:
panic(0x816880, 0xc820010080)
/usr/lib/go-1.6/src/runtime/panic.go:464 +0x3e6
main.(*Exporter).Collect(0xc8200b8120, 0xc8202fe1e0)
/opt/prometheus/downloads/git/hadoop-exporter-52d6c8331c03775ae8d8b92e834024e1cd8959d8/journalnode/journalnode_exporter.go:99 +0x135b
vendor/github.com/prometheus/client_golang/prometheus.(*Registry).Gather.func2(0xc820258190, 0xc8202fe1e0, 0x7f8c9296baa0, 0xc8200b8120)
/opt/prometheus/downloads/git/hadoop-exporter-52d6c8331c03775ae8d8b92e834024e1cd8959d8/src/vendor/github.com/prometheus/client_golang/prometheus/registry.go:433 +0x58
created by vendor/github.com/prometheus/client_golang/prometheus.(*Registry).Gather
/opt/prometheus/downloads/git/hadoop-exporter-52d6c8331c03775ae8d8b92e834024e1cd8959d8/src/vendor/github.com/prometheus/client_golang/prometheus/registry.go:434 +0x360
请问这个exporter有对应的grafana视图吗
Build failed
$ go build resourcemanager_exporter.go
./resourcemanager_exporter.go:256: e.appsCompleted.Set undefined (type prometheus.Counter has no field or method Set)
./resourcemanager_exporter.go:257: e.appsSubmitted.Set undefined (type prometheus.Counter has no field or method Set)
$ go build namenode_exporter.go
./namenode_exporter.go:243: e.pnGcCount.Set undefined (type prometheus.Counter has no field or method Set)
./namenode_exporter.go:244: e.pnGcTime.Set undefined (type prometheus.Counter has no field or method Set)
./namenode_exporter.go:247: e.cmsGcCount.Set undefined (type prometheus.Counter has no field or method Set)
./namenode_exporter.go:248: e.cmsGcTime.Set undefined (type prometheus.Counter has no field or method Set)
$ go version
go version go1.7 linux/amd64
can't build
The Prometheus API probably changed
go build namenode_exporter.go
# command-line-arguments
./namenode_exporter.go:243: e.pnGcCount.Set undefined (type prometheus.Counter has no field or method Set)
./namenode_exporter.go:244: e.pnGcTime.Set undefined (type prometheus.Counter has no field or method Set)
./namenode_exporter.go:247: e.cmsGcCount.Set undefined (type prometheus.Counter has no field or method Set)
./namenode_exporter.go:248: e.cmsGcTime.Set undefined (type prometheus.Counter has no field or method Set)
./namenode_exporter.go:312:28: undefined: prometheus.Handler
when i run 'go build namenode_exporter.go', I got this question, How to solve this problem？
[Feature request] add a datanode-exporter
building on the latest updates of https://github.com/Datatamer/hadoop_exporter
which contains already an extra exporter for the 'journalnode' (added by @laferrieren) 👍
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