Questions tagged [metrics]

metrics are a way to measure things.

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27 views

Multi-homing: do i need Route metrics for 2 interfaces of which only one can access the internet?

I have 2 multi-homed servers which, besides each being connected to the Internet via one of their NICs, they are also connected back-to-back to each other via their 2nd NIC. I use systemd-networkd to ...
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2answers
32 views

Network time metrics

I am trying to get a sense of the different networking metrics and specifically those that are about time. I find myself lost in definitions though. From the research I have done so far I found some ...
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1answer
92 views

how to send alert on the same incident using logs-based metrics

On GCP we have created various logs-based metric where we basically are looking for log entries with some keywords like 'error', 'warning' etc... We also created alerts based on those metrics. Most of ...
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How to find the route that has internet connection and set it as default (lowest metric) with NetworkManager (Ubuntu)

~$ route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default 192.168.30.102 0.0.0.0 UG 100 0 0 eth0 default ...
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2answers
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Is it “common” for an IT department to provide a Network SLA to the business internally? [closed]

Service Level Agreements (SLAs) are pretty common when services are being purchased, we all expect that our business grade ISP, cloud providers, etc will offer a guarantee of 99.9% uptime, X amount of ...
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1answer
35 views

AWS CloudWatch metric for EC2 security updates

Is it possible to create an AWS CloudWatch metric which keeps track of the pending security updates on an EC2 (Ubuntu) instance? The idea is to have a quicker overview of EC2 instances who are in need ...
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1answer
36 views

Azure SQL metric

I am not able to find few SQL metrics in Azure. Can anyone help in how to set metrics for below topics. 1)Under utilized capacity 2)Number of databases outside of pool 3)Scale up 4)Connection ...
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1answer
41 views

Are Azure VM Metrics Always Accurate?

I have an Azure VM that is supposedly sized at [Standard B8ms (8 vcpus, 32 GiB memory)]. The Azure metric is pegged at 16%. When I log in to the server, the server is maxed out. The services/...
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1answer
496 views

Do prometheus metrics have some sort of “freshness” lifetime?

I'm scraping some metrics (openstack cinder volume sizes) every 15 minutes, and the results produce a discontinuous graph, like this: (That's the result of the simple query cinder_volume_size_gb). ...
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40 views

openshift metrics per namespace

Hello how can i provide usage metrics like: - cpu usage per container - persistantVolume fill level - network usage per container/pod of an openshift cluster. But individual per namespace/project ...
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1answer
153 views

Nagios - check procs and --metric=elapsed on the same service

After many days of working and searching onn the net, I'm getting back to you as a last chance for help. I'm working actually on monitoring unix process with nagios core 4.4.3 with nrpe . My goal is ...
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1answer
20 views

is there something like the stem-and-leaf plot for timeseries?

When wanting to quickly take a look at the distribution of a sequence of values, the stem-and-leaf plot is an incredibly simple, yet powerful tool. It takes a few minutes to teach the computer to draw ...
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1answer
106 views

Azure Data Out metric. View data source / destination [duplicate]

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 ...
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2answers
3k views

Disk usage metrics missing from Prometheus node exporter

I used Prometheus and node exporter a while ago and had access to node_filesystem_* metrics to monitor disk usage but I've recently fired it up on some other servers (Ubuntu Linux) and those metrics ...
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1answer
495 views

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 ...
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0answers
383 views

How do I configure Prometheus for aggregated metrics?

I have five related questions around the configuration of Prometheus for aggregated metric reception. There are some invariants in my system: Python server code that needs to be instrumented ...
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1answer
79 views

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 ...
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1answer
807 views

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 ...
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1answer
709 views

Creating an AWS Cloudwatch Alarm to monitor an AWS SQS Dead Letter Queue

I want create a CloudWatch Alarm that triggers every time a message is sent to an SQS Dead Letter Queue and then clears 5 minutes later, unless one or messages are sent in the interim in which case ...
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0answers
286 views

sar -dp reports individual disks higher than their devicemapper logical volume

I am trying to figure out how sysstat is reporting the utilization of the device mapper logical volume, lower than the individual disks that make up the logical volume. I keep trying to do the math ...
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2answers
3k views

kubectl top node doesn't work. Looks like an issue with heapster

I have a fresh k8s cluster on gke. Whenever I run kubectl top node gke-data-custom-vm-6-25-0cbae9b9-hrkc I get Error from server (NotFound): the server could not find the requested resource (get ...
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1answer
205 views

kube-system pods in private GKE cluster can't make internet connections

After migrating all our Kubernetes workloads to private clusters, we've found that the SD metrics explorer is no longer receiving any data. Although we have cloud NAT setup to work with all subnets, ...
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0answers
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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 ...
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1answer
702 views

Not understanding metrics of k6

I have load tested my server with k6 and I have some doubts about the results I have obtained. /\ |‾‾| /‾‾/ /‾/ /\ / \ | |_/ / / / / \/ \ | | / ...
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1answer
304 views

Unexpected CPU Percentage with azure metrics

I'm currently having trouble to explain the following behavior on an azure VM. The VM is a Standard DS4 v2 Promo (8 vcpus, 28 GB memory) with Ubuntu 18.04 freshly installed. I generate some workload ...
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4answers
35k views

How can I monitor VM memory usage on Azure?

I have a few VMs set up as ADO (VSTS) build servers and thought I'd look into CPU and RAM usage over time to optimize the VM size. However I have had a hard time finding anything in Azure that allows ...
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1answer
4k views

metrics-server CrashLoopBackOff on k8s v1.11.1

Using kubeadm and flannel over 4-nodes running on RHEL 7 I did the following: Open port 10250 on all nodes Applied Failed to get kubernetes address: No kubernetes source found to address no source ...
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1answer
683 views

textfile for Windows

I need to export some custom metrics generated by a script under Windows. Under Linux, I am already doing it, based on Robust Perception / Brian Brazil article : The node exporter includes many ...
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1answer
112 views

Can Azure metrics logging frequency/collection period be changed?

Per Azure documentation: All metrics have one-minute frequency (unless specified otherwise in a metric's definition). Also, at least for VM guest metrics, when enabled the metrics are stored in an ...
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1answer
555 views

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 ...
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1answer
32 views

The command route the “Use” field is only zeroed, it does not count the route searches chosen

The route command output shows me the "Use" field but it always goes to zero, would not it be the route lookups because it does not count would it have something to activate so that it starts counting?...
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1answer
88 views

Is there a way to monitor network traffic from outside the Vnet in Azure?

I can view the network traffic into an Azure VM, but I would like to view network traffic coming from communications outside the LAN. Is it possible to show this info in Azure? IE I have this graph ...
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1answer
500 views

How to Scale graphite?

I am having a lot of trouble understanding how to scale Graphite. I have a production instance of graphite (carbon-cache + whisper + graphite-web + grafana). I am running out of disk space and I think ...
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1answer
310 views

How to remotely pull Linux metrics into local Carbon/Graphite server?

I'd like to collect system metrics (IO, CPU, NET, RAM) from a remote RedHat server which has static IP / DNS into a Carbon / Graphite server on a VM which is running on my laptop. My laptop host OS is ...
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1answer
121 views

Reading Docker metrics in machine readable format

I'm running some Docker containers for my users. Users are able to start and stop their containers dynamically, so I would like to watch my Data space available metrics from docker info with some sort ...
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2answers
543 views

Stackdrive agent metric isn't propagated to GCE instance-group-manager autoscaler

I'm trying to set up autoscaling group of instances on GCE. Autoscaling policy setup to add instance(s) based on percent of used memory. On every instance I installed Stackdriver Monitoring Agent (...
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1answer
132 views

Azure VM Metric

I am looking for a way to view CPU usage for multiple VMs on the same graph in Azure (new portal)? So far I was only able to produce a graph showing metrics for 1 VM. I would like to achieve this for ...
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1answer
476 views

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 ...
1
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1answer
375 views

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 ...
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1answer
60 views

Something for Icinga like sensu-metrics-relay

I used to work with Sensu and I was using a plugin called sensu-metrics-relay so I could easily forward some metrics collected using a jenkins plugin called "Metrics Plugin" to graphite. Now I am ...
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3answers
13k views

How to change Interface Metric permanently in CentOS

My Config: Guest OS - CentOS7 Host OS - Windows 7 Interface - 3 (enp0s3, enp0s8, enp0s9) Installed in Virtual Box enp0s8 is Bridge to wlan0(For Internet) enp0s3 and enp0s9 are host-only Kernel IP ...
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1answer
450 views

Can the metrics collected by collectd be given new prefixes?

I am using collectd write_http plugin to send metrics to Librato. The only thing I would like to change is the way the metrics appear in Librato. The metrics (not the sources which can be named in the ...
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0answers
344 views

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 ...
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1answer
181 views

Opscenter 5.2 missing data for 1day and 1week graph scale

I recently update Opscenter from 5.1 to 5.2, and yesterday just discovered that if I select different 1day or 1week graph scales no data will be shown in the graph. I checked the logs and the chrome ...
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1answer
227 views

docker won't show stats, says 'command not found'

I am very confused about how the docker stats command is supposed to run, mostly because for me, it won't. According to their docs I should be able to execute dockers stats <id> and get ...
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1answer
431 views

Monitoring Java garbage collector and memory status

I'm running some Rails applications on Jboss with JRuby. Sometimes the Java garbage collector can't free memory and the jvm consume all the available memory. I'm trying to create a custom metric ...
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1answer
6k views

What do “key buffer size” and “total MyISAM indexes” unit sizes mean?

I ran MySQLTuner on my database to check if things are working correctly and optimally, but I was confused as to the units used for these two values. Here is what the output looks like for ...
4
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1answer
5k views

How to display a graphite graph of used memory when you have total memory and free memory

My servers send mem_total and mem_free metrics to Graphite, but I'd like to display mem_used on my dashboard. I'm currently solving the problem by doing: offset(scale(servers.foo.*.mem_free,-1),...
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1answer
1k views

How can I plot Apache HTTPd status counts in Graphite without Statsd using Logstash?

I'd like to send Apache HTTPd log statistics, such as 200 status counts to Graphite/Carbon. Logstash looks ideal but all the examples I've seen use Statsd to act as the state counter. This means ...
4
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4answers
1k views

Monitor and collect statistics on TCP connection to src or dst host

I would like to collect stats on TCP/UDP packets sent between two hosts (A and B). I am looking for a tool to install on A and B to get the following information: kb/seconds packets/seconds (...