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Questions tagged [metrics]

metrics are a way to measure things.

Metrics are a way to measure things.

For instance, in networks, it is used to identify the cost of an operation. If you have a packet that needs to go from router A to router B, it can get there by either going through router D or router C. Router A will calculate the cost, this is based on metrics. A router can calculate a metric by looking at what routing protocol is used by another router and its bandwidth. It will try to always use the router with the lowest metric.

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Graphite Clustered Webapp - Not Sharing Data

I have Graphite setup on three instances on EC2: carbon-relay - relay1.graphite.prod.example.ec2 carbon-cache + webapp - cache3.graphite.prod.example.ec2 carbon-cache + webapp - cache4.graphite.prod.example.ec2 The relay is working perfectly with…
organicveggie
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How can I measure precisely the resources consumed by each Web site on my server?

We are having performance issues on our server which may or may not be the inevitable result of high traffic to our sites. We would like to optimize each site for performance so that we can be sure we're getting the most "bang for our buck" before…
Aaron Lozier
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Measure data transfer throughput?

How can I benchmark the network transfer speed of my servers? We already have an existing file server, but it is fairly old. We recently got a donation of a (relatively) newer P4 box, and I wanted to find a way to test its network+disk I/O speeds to…
lfaraone
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Alternative Ganglia interfaces?

I'm evaluating various metric collection systems and appreciate just about everything in Ganglia, except for the less than clean interface. Does anyone know of alternative Ganglia interfaces or additions to the interface that allow custom grouping…
CarpeNoctem
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Does Prometheus efficiently compress series of identical samples?

Does Prometheus efficiently store and de-duplicate long repeats of identical sample values for a metric? I'm working with a system where some of the inputs change at a low frequency - say every 30 minutes - but others change at a high frequency like…
Craig Ringer
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GKE metrics agent logging many errors

We have created GKE cluster and we are getting errors from gke-metrics-agent. The errors shows up every cca 30 minutes. It's always the same 62 errors. All the errors have label k8s-pod/k8s-app: "gke-metrics-agent". First error is: error …
Melchy
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Azure Data Out metric. View data source / destination

I have an app service that has been running for a while with steady usage. We noticed that late last night / early this morning there was a large spike in data out. Our website has an authenticated user area and we are concerned that there may have…
react-dev
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Can metrics "kubelet_volume_*" get value from volumes created by Ceph?

We are facing one question about monitoring volume storage. We use metrics "kubelet_volume_stats_used_bytes" and "kubelet_volume_stats_capacity_bytes". On our lab we have > 100 volumes mounted to pods, and among these volumes there are 14 volumes…
Lijing Zhang
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How to extract Kubernetes core metrics usage over time - metrics-server

I am using metrics-server in Kubernetes. How do I extract data relating to these core metrics: Number of pods running for each horizontal pod over a period of time CPU usage at certain points in time Number of failures / restarts over a period of…
cfbd
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AWS Application Load Balancer - processed bytes metric

I have just finished setting up Application Load Balancer on AWS. I am trying to figure why my Processed Bytes metric is giving such a high number (and as a result Consumed Capacity Units go up and it becomes expensive). How is this actually…
Mateusz Drankowski
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Azure Event Hub: message-contents-driven metrics

Event Hub has a builtin Incoming Messages metric which shows how many messages were received but it does not allow to see what those messages are. I am looking for a simple solution to have a metric based on messages contents. For example, assuming…
jmuet
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Prometheus with remote_write and backups

I'm building a prometheus stack that uses the remote_read/remote_write feature for long term storage, and I have some questions about if/how prometheus' tsdb needs to be backed up, given that it is using long term storage. 1) Do I need to back up…
user307927
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I'm unable to change network interfaces' metrics in Linux

I am trying to change the priority of network interfaces on my server using ifmetric. When I execute the command it looks like it worked (exit code 0), but it simply won't affect the interfaces - in ifconfig it shows Metric:1 for all…
eden881
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Is it possible to collect metrics from openstack swift without Statsd?

I need to collect different metrics from swift servers and store those metrics into OpenTSDB. I found that there is way to collect metrics with statsd and graphite but it isn't suitable for me because I have to store metrics into OpenTSDB. Is there…
Oleksandr
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HAProxy qtime meaning

According to the HAProxy documentation the metric qtime represents the average queue time over the last 1024 requests. My question is, does this metric average ALL requests, or just those that have sat in the queue? For example, if I have received…
vageli
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