I need to monitor the performance of a raspberry PI (with raspbian), I tried to use new relic, but it doesn't support ARM architecture, so it's impossible to use.
I even tried graphdat but seems to have the same problem.
Any alternative to suggest me?
Linode Longview does support arm architecture:
https://www.linode.com/longview
The free tier have 12-hour retention but that may be enough for most cases.
I know this is old, but New Relic has ARM and ARM64 infrastructure agents now:
https://download.newrelic.com/infrastructure_agent/binaries/linux/arm/
I've tested this on a Raspberry Pi 4 (8GB) on Debian (32-bit) and it's been working fine so far.
In case anyone else tries, here's what I did:
Download the Infrastructure Agent:
sudo curl https://download.newrelic.com/infrastructure_agent/binaries/linux/arm/newrelic-infra_linux_1.20.5_arm.tar.gz --output newrelic-infra_linux_1.20.5_arm.tar.gz
Extract the files
sudo tar -xf newrelic-infra_linux_1.20.5_arm.tar.gz
Add license key to the config script:
echo "license_key=\"<YOUR_LICENSE_KEY>\"" | sudo tee -a ~/newrelic-infra/config_defaults.sh
Install the Infrastructure Agent
sudo ~/newrelic-infra/installer.sh
Check service status to make sure it's running:
sudo systemctl status newrelic-infra
By default, process information is not sent to New Relic, so I had to enable it manually:
echo "enable_process_metrics: true" | sudo tee -a /etc/newrelic-infra.yml
Finally, restart the service:
sudo systemctl restart newrelic-infra
Related
I have a running system with Ubuntu 16.04, Apache 2.4.18, PHP 7.3 and 7.4, PHP-FPM, PHP FastCGI, MPM event.
I wanted to upgrade to the latest Apache version (2.4.46-2+ubuntu16.04.1+deb.sury.org+3 amd64 [upgradable from: 2.4.18-2ubuntu3.17]) as follows:
add-apt-repository -y ppa:ondrej/apache2
apt update
apt-get --only-upgrade install apache2
service apache2 restart
Job for apache2.service failed because the control process exited with error code. See "systemctl status apache2.service" and "journalctl -xe" for details.
journalctl -xe
apachectl[9010]: [:crit] [pid 9013] (38)Function not implemented: AH00141: Could not initialize random number generator
I checked and /dev/random and /dev/urandom are installed.
Kernel: 4.4.0-042stab141.2 and libc6: 2.23-0ubuntu11.2
Happened to me after upgrading apache to version 2.4.46 on Ubuntu as well. I found out it was the kernel version.
I knew I did apt-get upgrade and the kernel should be latest version, Also running
sudo update-grub
Showed me newer versions, but running uname -r showed very old kernel.
After a long investigation that took almost all day and trying everything I found online about upgrading Ubuntu kernel - I found out it was Digitalocean, not me. Old droplets use external managed kernel - so no matter what you do on your environment, it will always take the external kernel. The solution was here:
https://www.digitalocean.com/docs/droplets/how-to/kernel/grubloader/#switch
If you do see the drop down & change button in your droplet settings in Digital ocean control panel, then your kernel is externally managed. In that drop down type “grub” and choose GrubLoader v0.2, press “change” button & that’s it!
Now you’ll need to shut down & turn back on your server, but before you do so I suggest to run the following commands:
sudo apt-get update
sudo apt-get upgrade
The above upgrade will update the whole system. To update just kernel run the above update command followed by:
sudo apt-get upgrade linux-image-generic
Now shut down (sudo poweroff or power off from DigitalOcean interface, though doing it from CLI is preferred). Note that reboot is not sufficient in this particular case and a complete shut down is needed (Thanks #gauss256 for your comment). Then power it back on from digital ocean interface, And upon startup you should see a new kernel version.
Tip - you might want to delete old Kernel files after the reboot, this can be done by:
sudo apt-get purge $( dpkg --list | grep -P -o "linux-image-\d\S+" | grep -v $(uname -r | grep -P -o ".+\d") )
Installed a new vmware player 15.5.1 on win10 pro, using guest linux/unbuntu 18.04 server
Trying to get to install the vmware tools (not sure what options I may have selected when I installed the work station). But the install vmware tools menu is disabled. When I run my VM get the re-install menu that too is disabled.
Tried manual install of vmware tools - but that also did not do the trick:
apt-get install open-vm-tools
apt-get install open-vm-tools-desktapop
systemctl status open-vm-tools
sudo shutdown -r now
ps | grep vmtoolsd
How do I fix this. (just start over with fresh install and all that or try use some other player (!?))
I did not get any response here and could not figure it out - tried many options. (same problem with VirtualBox)
But the good news, at least from cut-n-paste perspective- use alternate client. You can use ssh to login into the machine using your favorite tool - putty or even cmd will work. This actually is a better solution - no need to muck with mouse capture and all that.
So just setup a ssh server
sudo apt update
sudo apt install openssh-server
sudo systemctl status ssh
Active: active (running)
Open firewall
sudo ufw allow ssh
Check IP address
ip a
SSH in with PUtty or Cmd or ..
ssh username#ip_address
You are Done - will work like a charm
Note: This ssh works only from local host as the VM only has Pvt IP. If you can create public IP on VM (that is another arduous adventure - still working on it) - you will be able to remote ssh
I need login to manjaro from windows.
I found that on ubuntu or else xrdp is used, but not found on manjaro. sudo pacman -S xrdp wont work.
xrdp is in aur: https://aur.archlinux.org/packages/xrdp/
You could run for example yay -S xrdp
you can install remmina from snap store, no need to aur
sudo snap install remmina
Remmina supports multiple network protocols in an integrated and consistent user interface. and currently RDP, VNC, SPICE, NX, XDMCP, SSH and WWW are supported.
here is the link to snap store : snapstore/remmina
I tried many different ways to add an executable (winforms) created in C# using mono to start automatically after login, but any attempt was not right.
Does anyone know how can I do it? I'm running a Raspbian (Raspberry Pi).
Thanks since now!
I guess your idea was to launch the app in the desktop, but if you need it as a "kiosk", I always use:
Steps to configure the Raspberry Pi to run as a kiosk with the presentation
Software setup
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install mono-complete xutils
To avoid the screen turning off
sudo nano /etc/X11/xinit/xinitrc
And now in the editor, append:
setterm -blank 0 -powersave off -powerdown 0
xset s off
xset -dpms s off
mono /path/to/your/assembly.exe
Auto start as kiosk
sudo nano /etc/rc.local
And now in the editor, replace contents with:
/bin/bash startx &
exit 0
Make sure that in sudo raspi-config start mode is configured as console
I finally found a solution. I created a myprogram.desktop and I added it to the directory /home/pi/.config/autostart. Please make sure if it exists. If don't, it is needed to create a folder called autostart and add the file there.
The myprogram.desktop should looks like:
[Desktop Entry]
Name=myprogram
Type=Application
Comment=It runs my app.
Exec=/home/pi/myprogram.exe
I would like to know how to either ignore upgrading certain ports or unmark them as "outdated".
This is motivated by certain ports failing to upgrade, while I wish to upgrade all the rest. I know about sudo port install -n, which allows one to install a port without upgrading port dependencies, as in the case of mongodb requiring an older (not the current) version of theboost libraries, but this is not applicable here.
For example:
$ sudo port list outdated
gdb #7.5 devel/gdb
py27-scikits-image #0.7.1 python/py-scikits-image
As gdb#7.5 fails to update, I would just like to upgrade the others, ie. py27-scikits-image, without going thru the whole sudo port list outdated | awk '{print $1}' | grep -v gdb | xargs sudo port upgrade pipeline.
Much appreciated.
I would advise to create a local portfile for gdb with a lower version number.
Create a local portfile repository: howto
Copy the gdb portfile directory (a directory called "gdb" containing the file "Portfile" and directory "files") into your local portfile repository
Change the version number in the portfile to e.g. 0.0
Run portindex in your local portfile repository
The local portfile overrides the one downloaded from the default port repository. The low version number makes macports think your version of gdb is up to date.
I hope this can help.
BTW: you can do sudo port upgrade outdated and not gdb