Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [metrics]

metrics are a way to measure things.

1
vote
2answers
59 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 ...
0
votes
1answer
41 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, ...
1
vote
0answers
12 views

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 ...
0
votes
0answers
109 views

Kafka Metrics monitoring using Prometheus

currently I am monitoring Kafka with Prometheus to which I am new. I have successfully setup Prometheus with nade_exporter, jmx_exporter and kafka_exporter. I want to monitor other metrics given at ...
0
votes
1answer
116 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. /\ |‾‾| /‾‾/ /‾/ /\ / \ | |_/ / / / / \/ \ | | / ...
0
votes
1answer
56 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 ...
1
vote
2answers
3k 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 ...
0
votes
1answer
2k 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 ...
0
votes
1answer
193 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 ...
0
votes
1answer
74 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 ...
0
votes
0answers
269 views

metrics collector + Failed to invoke 'unbuffer' + socket connection left open in CLOSE_WAIT state

we have hadoop cluster on redhat machines , while metrics collector installed and running on one of the master machines we see strange warning from the logs , and we cant understand what the meaning ...
0
votes
0answers
124 views

Prometheus' node-exporter, missing diskstats metrics on Xen VMs

For some reason, diskstats metrics are missing from my Xen VMs. Same node-exporter with identical settings works fine on VMW VMs. I am not using selinux or apparmor. Has anyone experienced this? ...
0
votes
1answer
235 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 ...
1
vote
1answer
29 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?...
0
votes
1answer
47 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 ...
0
votes
1answer
257 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 ...
0
votes
1answer
260 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 ...
4
votes
1answer
85 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 ...
1
vote
2answers
328 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 (...
0
votes
1answer
123 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 ...
1
vote
1answer
264 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
vote
1answer
222 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 ...
2
votes
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 ...
2
votes
1answer
6k 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 ...
0
votes
1answer
385 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 ...
1
vote
0answers
263 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 ...
0
votes
1answer
170 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 ...
0
votes
1answer
202 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 ...
0
votes
1answer
351 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 ...
0
votes
1answer
5k 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
votes
1answer
4k 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),...
1
vote
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
votes
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 (...
1
vote
0answers
2k views

Data does not get collected (Sensu, Carbon, Graphite)

I need to show graphs from sensu relay in graphite : With a netcat cmd i see a new tree in Graphite : #echo "test.first 10 `date +%s`"| nc 127.0.0.1 2003 But with sensu relay i see only : "...
14
votes
2answers
34k views

Routing selection: specificity vs metric

I understand that Linux chooses the most specific route to the destination when it does routing selection. But what about a route's metric? Does it have a higher priority than route's specificity? A ...
2
votes
1answer
2k views

What is the counter type for Linux's /sys/block/$DEVICE/stat

What are the counter types for /sys/block/$DEVICE/stat? $ cat /sys/block/sda/stat 8323741 42381356 464031898 19207478 1940738 49062039 408122282 79935459 0 22315734 99172579 Specifically, do ...
1
vote
3answers
1k views

Monitoring / metric collection for system collectives that change a lot in time (a.k.a. cloud) [closed]

When your server fleet doesn't change a lot in time, like when you're using bare-metal hosting, classic monitoring and metric collection solutions (Nagios, Munin) work well. But if the number of ...
1
vote
1answer
149 views

datatstax opscenter v 4.1.2 short-os collection failed

I've installed Datastax opscenter v4.1.2. It was bundled with Datastax Cassandra Community edition version 2.0.8. I'm running these on Windows Server 2008 R2 64-bit. When I open opscenter all ...
0
votes
1answer
89 views

Redis: INFO doesn't report network/bandwidth metrics?

Is there a way to get network/bandwidth metrics from a given Redis process? Something I missed in the output of the INFO command? Some patch or compile time configuration option? Or would I need to ...
1
vote
2answers
579 views

Calculating IOPS for a single HDD - what am I doing wrong?

So I know there is no standardized way of calculating IOPS for a HDD, but from everything I have read it appears one of the most accurate formulas is the following: IOP/ms = + {rotational latency} +...
0
votes
1answer
330 views

Monitoring performance metrics from Xen (xend) with Java

I need to write a Java application that is collecting and monitoring (remotely and local) performance informations and metrics from a Xen hypervisor. This Java application should fetch the same ...
2
votes
1answer
218 views

Negative Request Per Second observed?

I'm currently looking at my Nagios metrics, and especially on my WebServers and I suddently noticed that sometimes, I've a negative amount of Request per second and other metrics, how it is possible?? ...
7
votes
2answers
2k views

Graphite stops collecting data randomly

We have a Graphite server to collect data through collectd, statsd, JMXTrans ... Since a few days, we frequently have holes in our data. Digging through the data we still have, we can see an increase ...
1
vote
2answers
296 views

What is the best way to get ubuntu webserver cpu and memory load chart? [duplicate]

Possible Duplicate: What tool do you use to monitor your servers? I have a simple ubuntu 12.04 server that runs nginx, gunicorn and some python WSGI websites. Every morning i want to see server's ...
1
vote
1answer
344 views

Measuring custom statistics with sar

I have a server application which I think is leaking file handles. I want to track the usage of file descriptors over time on my Linux (ubuntu) server. I've figured out that I can track the number ...
1
vote
3answers
374 views

Simple tools to quickly capture and graph some arbitrary metrics on a server?

I want something that's quick to set up, doesn't have a lot of dependencies, outputs pretty graphs, and is easily customizable (e.g. calling external scripts that simply output a numerical value). I'...
0
votes
1answer
49 views

How to distribute multiple executions of an app across many machines

I've got a simulation app (64-bit windows) that runs without any user interaction. This app gathers information and pushes it to a remote MS SQL Server. What I'd like to do is execute this ...
23
votes
2answers
6k views

Is there a Windows equivalent of Unix 'CPU steal time'?

In order to assess performance monitoring accuracy on virtualization platforms, the CPU steal time has become an increasingly relevant metric - see EC2 monitoring: the case of stolen CPU for an ...
2
votes
1answer
878 views

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....
4
votes
5answers
6k views

What metrics should I watch when I monitor a server?

I saw a lot of monitoring tools and mostly show the same things. But I'm wondering if it's really necessary to watch all of these things. I would like to know which metrics really matter for example ...