Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [statistics]

46 questions
4
votes
1 answer

Detailed statistics using Ubiquiti UniFi hardware

I'm using UniFi manager to manage 10+ sites with 3-5 hotspots per site, and I look for more detailed statistics that the one offered by UniFi manager, such as: following an user through different APs number of total connections all other stuff that…
Rob
  • 141
  • 1
  • 3
3
votes
1 answer

/proc/diskstats: No such file or directory

Trying to get some disk performance metrics (in particular, using munin), found that /proc/diskstats does not exist. Tried yum provides '*/diskstats' but nothing except munin was found. CentOS release 6.7 (Final) uname -a Linux domain.com…
Putnik
  • 2,095
  • 3
  • 23
  • 40
3
votes
1 answer

What is the Mean Time to Failure (MTTF) of a RAID5?

Given the MTTF T of an individual drive (say, 100000 hours) and the average time r it takes the operator to replace a failed drive and the array-controller to rebuild the array (say, 10 hours), how long will it take, on average, for a second drive…
Mikhail T.
  • 2,272
  • 1
  • 22
  • 49
2
votes
0 answers

Continously monitor network consumption of per process on Linux

I have a server running Debian Stretch with a lot of running services and from the hoster's monitoring I can see some pretty hefty traffic spikes every now and then (not regular). As this could be malicious traffic, I need to find out what process…
ThE_-_BliZZarD
  • 301
  • 1
  • 4
  • 11
2
votes
0 answers

What do the numbers in square brackets of ethtool output mean?

I'm looking at NIC statistics and can't find any info about these numbers: [0],[1]..[7] like here: [root@machine-1 ~]# ethtool -S enp21s0f0 NIC statistics: [0]: rx_bytes: 23048043995115 [0]: rx_ucast_packets: 15462207866 [0]:…
John
  • 21
  • 3
2
votes
3 answers

Apache http status code stats

I would like to get hourly statistics about the http status codes which were returned by the apache web server. One solution would be to analyze the http log file. But this is a moving target. It gets longer during reading it, and from time to time…
guettli
  • 3,113
  • 14
  • 59
  • 110
2
votes
1 answer

How to spec VM requirements based on historical data of transient processes on Linux?

I've been given a task to break apart the services on one of our main VMs (Amazon EC2) and appropriate additional VMs to suit the services needs. The type of services that I am dealing with are mostly php cronjobs, that coincide with our web…
Mike
  • 21
  • 1
2
votes
1 answer

"Advanced network settings > Data usage" statistics using PowerShell

How can one get the Advanced network settings > Data usage statistics in Windows 11 using PowerShell? I couldn't figure out how to get the total data consumption per process using Get-NetAdapterStatistics.
Ayan Mullick
  • 486
  • 1
  • 6
  • 14
2
votes
2 answers

ntpd: permission denied writing to /var/log/ntpstats/ (statsdir directory)

I am running a NTP server on an Ubuntu 20.04 LTS. The server work fine and the client poll correctly the server. But i keep getting a permission error when i want to record statistics. I tried to include the following lines in ntp.conf : statistics…
molik
  • 69
  • 1
  • 9
1
vote
0 answers

Network interface statistics: tx_dropped value always 0

I am writing a program that collects and displays network interface metrics located in the /sys/class/net/ folder. When I was reading about the meaning of rx_dropped value, I came to the conclusion that this value as many possible causes, such as…
imll
  • 113
  • 3
1
vote
1 answer

What is the best way to analyze data captured from sar?

I've got some sysstat data that has been captured from servers with SAR, and I'm unsure what is the best way to analyze that data. I've found ksar, but it seems to be quite old and out of date. I'd prefer to be able to analyze in a graphical…
stonecrusher
  • 135
  • 7
1
vote
0 answers

Why ZFS ARC hit rate is higher than real performance hit?

We've got Debian Wheezy host with ZFS on Linux with in. It is used only for serving large files over http. User activity is mostly characterized by a lot of random read. We've noticed that ~95% ARC hit rate gives us ~80 MByte/s hdd reading…
Alexander Klimenko
  • 151
  • 5
1
vote
2 answers

Awstats: Combine HTTP and HTTPS logs

Plesk keeps the configuration files for AWStats in the following folder: /usr/local/psa/etc/awstats At the end of the configuration files for the domain for HTTP+S is the following line for custom changes as the files gets overwritten by…
DevDavid
  • 35
  • 1
  • 8
1
vote
2 answers

Linux program used to gather installed packages, processes, listening ports, etc.?

It's hard to Google this because it seems like everyone and their kid sister has written a script to gather system stats! I once saw a mature program written that is used to gather system stats like installed packages, listening ports, users,…
Synthead
  • 131
  • 2
1
vote
1 answer

Nginx: Tracking try_files misses

We are using try_files as cache rather than hitting the UWSGI to serve the file. Using a rule like the following: try_files $uri @uwsgi_app; I was wondering what is the best way of logging the cache success of this?
tgandrews
  • 155
  • 1
  • 1
  • 7
1
2 3 4