I am recieveing an error when I run the
admin app on my OpenCPU Server
Error Message :
Not Found
The requested URL /Radmin/call/opencpu.demo/install.opencpu/json was not found on this server.
I have the R folder of the opencpu repo and the package installed yet I dont know where the install.opencpu function file is
I'm not sure where you found the /Radmin/ url, but that feature never made it into opencpu. Try to stick with the stuff from the manual page: www.opencpu.org.
Related
I am trying to run jupyterhub on an Ubuntu 20.04 LTS server. My idea is to run python/jupyterhub in a conda virtual environment as a system service. As I want to be able to limit the resources available to individual users I installed the systemdspawner.
After installing everything and starting the jupyterhub service I can login through my web browser. However, when trying to start the server the spawner stucks and after a while I get an error message saying "Spawn failed: Timeout"
in journalctl I can see the following messages:
User logged in: me 302 POST /hub/login?next= -> /hub/spawn (me#::ffff:[my IP address]) 59.42ms
Adding role server to token: <APIToken('93c8...', user='me', client_id='jupyterhub')
Creating oauth client jupyterhub-user-me
pam_loginuid(login:session): Error writing /proc/self/loginuid: Operation not permitted
pam_loginuid(login:session): set_loginuid failed
pam_unix(login:session): session opened for user me by (uid=0)
Failed to open PAM session for me: [PAM Error 14] Cannot make/remove an entry for the specified session
Disabling PAM sessions from now on. user:me
Unit jupyter-me-singleuser in a failed state. Resetting state.
Disclaimer: My Jupyter/Python installation is replacing an former installation that was setup by someone else and got messed up a bit during time. I tried to remove everything related and start with a clean installation from scratch. However, as I had very little documentation about the old setup there is a certain risk that there might be some left-overs of the previous installation that may cause trouble.
Any ideas?
Solved it out myself. In the end the PAM related messages seem to be non-critical and were not related to the timeout at all. Instead I found a mistake in /etc/systemd/system/jupyterhub.service, where the PATH variable was not including the bin directory of my miniconda installation.
I installed the Openstack horizon(Train version) by followed guide, no error showing in my install steps. After finished install, I access "http://controller_ip/dashboard", and got an error:
The requested URL /auth/login/ was not found on this server.
Can anyone help?
this
https://bugs.launchpad.net/horizon/+bug/1853651
By adding the following to the config file (and restarting httpd), the horizon dashboard then loads without issue:
WEBROOT = '/dashboard'
I am struggling with installing a package from a GitLab repository on a Windows computer.
I found different hints but still have problems to install my package from GitLab. First of all, I generated a public and private key with puttygen.exe. The files need to be changed afterwards, I had to remove comments and stuff so they look like my the file on my Unix system. So now, both public and private key files have just a single line.
I tried to install my package via devtools::install_git which takes very long and I get the error message
Error: Failed to install 'unknown package' from Git:
Error in 'git2r_remote_ls': Failed to authenticate SSH session: Unable to send userauth-publickey request
And with devtools::install_gitlab I get a different error message and I somehow have the feeling, the link which gets generated doesn't fit to my GitLab server.
Error: Failed to install 'unknown package' from GitLab:
cannot open URL 'https://gitlab.rlp.net/api/v4/projects/madejung%2FMQqueue.git/repository/files/DESCRIPTION/raw?ref=master'
My complete code to test at the moment is
creds <- git2r::cred_ssh_key(publickey="~/.ssh/id_rsa_gitlab.pub",
privatekey="~/.ssh/id_rsa_gitlab")
devtools::install_git(
url='git#gitlab.rlp.net:madejung/MQqueue.git',
quiet=FALSE,
credentials=creds)
devtools::install_gitlab(
repo='madejung/MQqueue.git',
host='gitlab.rlp.net',
quiet=FALSE,
credentials=creds
)
My id_rsa_gitlab.pub file looks like this and is just a single line:
ssh-rsa AAAA....fiwbw== rsa-key-20200121
The id_rsa_gitlab file has just the code:
AAABA.....3WNSIAGE=
Update
On my Mac system it works as expected after installing the libssh2 library via homebrew and and recompiling git2r with install.packages("git2r", type = "source").
So the working code on my machine is:
creds <- git2r::cred_ssh_key(publickey="~/.ssh/id_rsa_gitlab.rlp.net.pub",
privatekey="~/.ssh/id_rsa_gitlab.rlp.net")
devtools::install_git(
url='git#gitlab.rlp.net:madejung/MQqueue.git',
quiet=FALSE,
credentials=creds
)
For some strange reason, the devtools::install_git call needs about a minute to fail in the end. I have no idea where the problem here is.
After struggling for almost a day, I found a solution I can live with...
I first created a PAT (Personal Access Token) in my gitlab account and granted full API access. For some reason the read_only access didn't worked and I am now tired to figure out what the problem is.
After this I had still problems to install my package and for some reason, the wininet setting for downloading doesn't work.
I used the command capabilities("libcurl") to check if libcurl is available on my windows, which was and tried to overwrite wininet to libcurl by using method='libcurl' in the install function. Somehow, this was not enough so I overwrote the options variable download.file.method directly.
options("download.file.method"='libcurl')
devtools::install_gitlab(
repo='madejung/MQqueue',
auth_token='Ho...SOMETHING...xugzb',
host='gitlab.rlp.net',
quiet=FALSE, force=TRUE
)
I am trying to authorize my shinyapps account on my Rstudio console, but when I run the setAccountInfo() , i get the following error
Failed to connect to api.shinyapps.io port 443: Connection refused
I am under a proxy connection in my college.although i have run the following code to work under proxy and it used to work for installing packages from github etc. but to authorize its still not working
library(httr)
set_config(
use_proxy(url="10.3.100.207", port=8080)
)
i have even enabled internet2. but all the attempts are futile. any help ?
If you're running behind a proxy server, you'll want to configure the shinyapps package to use your proxy server. Checkout the docs in ?shinyapps::shinyappsProxies for more information, but in short you'll likely want to do:
Sys.setenv(http_proxy = "http://username:password#proxy.example.com:8080")
It can be helpful to put this command in your .Rprofile so its runs everytime you launch R.
I started playing with OpenCPU a couple of weeks back and am getting hooked to it. I was able to succesfully install the "knitr" and "opencpu.demo" apps. The issue I am running into is when I try to invoke the R functions I packaged under a new r package and call it from within knitr-app. I get a message saying no such package exists. I ran installed.packages(lib.loc="/usr/lib/R/library") from an R shell and from knitr-app interface and indeed my packages shows up in the former but not in the latter case. No idea whats going on here ! Will greatly appreciate if anyone can answer this.
omments:
when i run find.package("DummyPkg") through the /R/pub/base/identity/json API , I do get back
[
"/usr/lib/R/library/DummyPkg"
]
However the same query from within knitr-app webpage returns:
# write R code here
find.package("DummyPkg")
## Error: there is no package called 'DummyPkg'
The default html page for knitr app has links to opencpu.org server, so the POST was going to public server instead of going to my server, no wonder my packages weren't showing up !
Comments:
when i run find.package("DummyPkg") through the /R/pub/base/identity/json API , I do get back
[
"/usr/lib/R/library/DummyPkg"
]
However the same query from within knitr-app webpage returns: