metrics is are a way to measure things.

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9 views

Graphite: carbon instrumentation: send to another server

I have a Graphite architecture composed of several elements (HAProxy, Carbon relays and caches) and I use a carbon relay to replicate my data between 2 Graphite servers which store it in Whisper ...
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1answer
23 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
18 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
29 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
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1answer
55 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 ...
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0answers
37 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: ...
0
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1answer
94 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
113 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 ...
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0answers
251 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 : ...
4
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2answers
517 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 ...
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0answers
49 views

How to calculate counter metrics not in real time

I use a Statsd daemon (bucky) and Graphite to generate counters for several metrics in our organization. Statsd protocol is real-time, meaning that you submit metrics and after an interval it ...
0
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1answer
216 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, ...
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3answers
481 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 ...
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0answers
100 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
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1answer
56 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
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2answers
225 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
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1answer
182 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
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1answer
100 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?? ...
8
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1answer
823 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 ...
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2answers
247 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 ...
1
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1answer
205 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 ...
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3answers
286 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). ...
0
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1answer
32 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 ...
18
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2answers
2k 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 ...
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1answer
686 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 - ...
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5answers
2k 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 ...
18
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2answers
10k views

What is the difference between OpenTSDB and Graphite?

As far as I can tell, here are the main differences: OpenTSDB does not deteriorate data over time, unlike Graphite where the size of the database is pre-determined. OpenTSDB can store metrics per ...
2
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5answers
328 views

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 ...
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1answer
236 views

Tools for gathering metrics about physical environment for use in virtualization/cloud planning?

I'm looking for tools that will work on either Linux/Unix or Windows Server that for a given set of servers in an enterprise environent, will: Identify the server [via hostname, or some other unique ...
2
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0answers
110 views

Solution for graphing application events metrics in real time [closed]

We have an application that parses tweets and we want to see the activity in real time. We have tried several solution without success. Our main problems is that the graphing solution ...
1
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1answer
64 views

Measure impact of new software on Windows Server

I'm an admin for a small business. I've been asked to give another company my opinion on whether or not our servers have enough available resources to handle the addition of their software. I've had ...
2
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1answer
833 views

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 ...
4
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4answers
2k views

Monitoring tools that can take high rate and high volume? [closed]

We're using Cacti with RRDTool to monitor and graph about 100,000 counters spread across about 1,000 Linux-based nodes. However, our current setup generally only gives us 5-minute graphs (with some ...
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5answers
9k views

I need to replace munin with something more scalable [closed]

I have used munin on multiple servers for many years with great success, however with more than 100 munin-nodes and when there is load on the clients, the processing is timing out. I have made some ...
4
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2answers
763 views

How to compare CDN services?

What are the metrics and their priorities to compare various CDN services?
0
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1answer
259 views

Sun Directory Server 5.2 performance

I'm using logconv.pl (provided by Sun), to measure performance on my server. These two metrics results, are worrying me a bit: Binds: 192164 Unbinds: ...
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3answers
200 views

How to compare CPUs?

What are the metrics and their priorities to compare task specific performance of various CPUs?
0
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1answer
677 views

Reporting Services 2008 SSRS usage metric reporting

We use web trends to track the usage of our web sites, but web trends is currently not capable of reading the logs produced by SSRS 2008. Has anyone figured out a way to modify the file so that web ...
0
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1answer
119 views

Configuration Rmetric with Rcov in hudson error

When I attempt to save a job that runs code coverage tests and is configured to publish an rcov report I get the error message listed below and the changes I made aren't saved. This problem cropped up ...
0
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2answers
232 views

server performance metrics report and practicality

I have a need of preparing web server (apache-php) performance report containing important metrics like CPU usage, disk io, memory usage on user basis. Couple of domains are hosted in the same server ...
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2answers
2k views

Server 2008, 2 NICs, 2 fixed IPs - big delays using internet

I have an all in one Windows 2008 server, configured with AD/DHCP/DNS/RRAS - all set up with wizards and no specific tweaking. The server has 2 network adapters : one of which ("MyWAN") is plugged ...
0
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1answer
126 views

Exchange 2007: Is there a way to get average number of attachements per day by file type?

I'm curious about the file formats of attachments moving through an Exchange 2007 mail environment. For instance the number of .doc vs. .docx files on average. Exchange Profile Analyzer seems more ...
11
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8answers
1k views

Looking for a recommendation on measuring a high availability app that is using a CDN

I work for a Fortune 500 company that struggles with accurately measuring performance and availability for high availability applications (i.e., apps that are up 99.5% with 5 seconds page to page ...
0
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1answer
66 views

Figures on data usage through various Internet protocols?

Given this list of protocols used by the internet does anyone know any way of getting information on the amount of data (or any other usage metrics) for various ones?
0
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2answers
75 views

Is it possible to find information on apache_mod_php processes under /proc?

I have an apache2 server with apache2_mod_php installed. Is there a way for me to determine from the information under /proc (or elsewhere), which apache processes are currently executing the php ...
4
votes
2answers
3k views

Tracking Apache by VirtualHost

I have an apache webserver running many VirtualHosts. Recently it has been bogging down and becoming unresponsive, and I'm wondering how I can determine which VirtualHosts are causing most of the ...
1
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2answers
567 views

Dealing with redundant Ethernet and WiFi under Windows

What happens under Windows (XP Pro SP3, specifically) when you have multiple network interfaces configured on the same subnet, like when your ethernet is plugged in and your WiFi is active at the same ...
0
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1answer
216 views

ASP Classic Website Usage Metrics

We have a ASP Classic Web site Running on IIS 6. What is the cleanest way to record the number concurrent users? We need this data over a period of time, and a way to sum it across servers would be ...
4
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4answers
3k views

How to define appropriate measurements for a Service Level Agreement?

I work for a small development house who are increasingly being asked to put together formal SLAs for our products based on particular configurations. From a development side of things I'm ...
2
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9answers
2k views

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 ...