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让Heapster和InfluxDB进行通信

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我正在尝试在Kubernetes集群上安装Heapster / InfluxDB / Grafana . 看起来Heapster正在生成数据但不会将其发送到InfluxDB . 当我在Heapster pod中查看eventer容器的容器日志时，日志看起来像这样：

E1020 18:43:20.006608      52 influxdb.go:147] Failed to create infuxdb: failed to ping InfluxDB server at "monitoring-influxdb:8086" - Get http://monitoring-influxdb:8086/ping: dial tcp: lookup monitoring-influxdb on 10.254.0.10:53: read udp 172.16.23.2:43533->10.254.0.10:53: i/o timeout
I1020 18:43:30.000165      52 manager.go:95] Exporting 88 events
I1020 18:44:00.000173      52 manager.go:95] Exporting 29 events
W1020 18:44:20.000451      52 manager.go:108] Failed to events data to sink: InfluxDB Sink
E1020 18:44:20.075039      52 influxdb.go:147] Failed to create infuxdb: failed to ping InfluxDB server at "monitoring-influxdb:8086" - Get http://monitoring-influxdb:8086/ping: dial tcp: lookup monitoring-influxdb on 10.254.0.10:53: read udp 172.16.23.2:60660->10.254.0.10:53: i/o timeout
I1020 18:44:30.000211      52 manager.go:95] Exporting 26 events
I1020 18:45:00.000169      52 manager.go:95] Exporting 23 events
W1020 18:45:20.000568      52 manager.go:108] Failed to events data to sink: InfluxDB Sink
E1020 18:45:20.004656      52 influxdb.go:147] Failed to create infuxdb: failed to ping InfluxDB server at "monitoring-influxdb:8086" - Get http://monitoring-influxdb:8086/ping: dial tcp: lookup monitoring-influxdb on 10.254.0.10:53: read udp 172.16.23.2:53401->10.254.0.10:53: i/o timeout
I1020 18:45:30.000568      52 manager.go:95] Exporting 30 events
I1020 18:46:00.000188      52 manager.go:95] Exporting 26 events
W1020 18:46:20.000504      52 manager.go:108] Failed to events data to sink: InfluxDB Sink
E1020 18:46:20.074697      52 influxdb.go:147] Failed to create infuxdb: failed to ping InfluxDB server at "monitoring-influxdb:8086" - Get http://monitoring-influxdb:8086/ping: dial tcp: lookup monitoring-influxdb on 10.254.0.10:53: read udp 172.16.23.2:49101->10.254.0.10:53: i/o timeout
I1020 18:46:30.000267      52 manager.go:95] Exporting 39 events
I1020 18:46:35.052332      52 influxdb.go:199] Created database "k8s" on influxDB server at "monitoring-influxdb:8086"
I1020 18:47:00.000173      52 manager.go:95] Exporting 64 events
I1020 18:47:30.000212      52 manager.go:95] Exporting 52 events
I1020 18:48:00.000234      52 manager.go:95] Exporting 43 events
I1020 18:48:30.070486      52 manager.go:95] Exporting 52 events
I1020 18:49:00.000340      52 manager.go:95] Exporting 40 events
I1020 18:49:30.000170      52 manager.go:95] Exporting 40 events
I1020 18:50:00.000205      52 manager.go:95] Exporting 57 events
I1020 18:50:30.000211      52 manager.go:95] Exporting 94 events

之后，只有一系列事件被导出 . 我的第一个问题是Heapster成功连接到InfluxDB服务还是只是将数据发送到http://monitoring-influxdb:8086，假设会收集一些内容？如果它确实连接了，为什么我的InfluxDB中的k8s数据库是空的？

我使用kubernetes/contrib/ansible中的ansible脚本部署了我的集群，并且从somwhere下载了yaml文件（我不知道在哪里） . 如果你想看一下，我把它们推到了一个git仓库here .

kubernetes monitoring influxdb heapster

1 回答

  • 1

    确定它是否正在收集数据的最简单方法（IMO）是查看Influxdb的日志 . 在我的环境中（从https://github.com/kubernetes/heapster/tree/master/deploy/kube-config/influxdb部署），pod都在kube-system命名空间中：

    kubectl get pods -n kube-system
NAME                                    READY     STATUS    RESTARTS   AGE
heapster-603813915-tggbr                1/1       Running   0          34d
kubernetes-dashboard-3313488171-mpn5b   1/1       Running   2          43d
monitoring-grafana-2175968514-zxgn1     1/1       Running   0          34d
monitoring-influxdb-1957622127-92r2w    1/1       Running   0          34d

    和日志：

    • kubectl logs monitoring-influxdb-1957622127-92r2w -n kube-system

    [httpd] 10.244.1.18 - root [23 / Oct / 2017：21：13：05 0000]“POST / write？consistency =＆db = k8s＆precision =＆rp = default HTTP / 1.1”204 0“ - ”“heapster / v1 . 4.0“f5e74e91-b836-11e7-84d0-000000000000 121606 [httpd] 10.244.1.18 - root [23 / Oct / 2017：21：14：05 0000]”POST / write？consistency =＆db = k8s＆precision =＆rp = default HTTP / 1.1“204 0” - “”heapster / v1.4.0“19a8a32c-b837-11e7-84d1-000000000000 137213 [httpd] 10.244.1.18 - root [23 / Oct / 2017：21：15：05 0000]”POST / write ？consistency =＆db = k8s＆precision =＆rp = default HTTP / 1.1“204 0” - “”heapster / v1.4.0“3d6eb415-b837-11e7-84d2-000000000000 125065 [httpd] 10.244.1.18 - root [23 / Oct / 2017 ：21：16：05 0000]“POST / write？consistency =＆db = k8s＆precision =＆rp = default HTTP / 1.1”204 0“ - ”“heapster / v1.4.0”6133e847-b837-11e7-84d3-000000000000 128300

    在这种情况下，204响应很清楚它接受数据 . 如果您的heapster由于某种原因没有与Influxdb通信，那么答案很可能也在Influxdb pod的日志范围内 .

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