I'm having trouble getting R to work on SQL Server 2017 on one server (I've successfully installed it on about 8 other servers). I've already installed that latest cumulative update.
When I execute a stored procedure that runs a simple hello world R script, I can see that LaunchPad.exe and rterm.exe are both running. After 60 seconds, however, I get the following error:
Msg 39012, Level 16, State 1, Line 0
Unable to communicate with the runtime for 'R' script. Please check the requirements of 'R' runtime.
STDERR message(s) from external script: Fatal error: creation of tmpfile failed -- set TMPDIR suitably?
This is the script that fails:
EXEC sp_execute_external_script
#language =N'R', #script=N'print("hello")';
Any ideas on what I need to do to resolve this error?
The problem was that Named Pipes wasn't enabled for SQL Server. Enabling that, and restarting the services solved my issue.
My assumption is that you applied the CU after the installation of Machine Learning Services? If so, the CU somehow messes up the folder permissions.
I wrote a blog post about how to fix it here. The blog post is about CU7, but it should apply to any CU.
I do not guarantee that it works, as I have seen other issues when the ML Services stop working, for those cases what fixes it is to do a repair of the SQL installation.
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 am trying to run the example grakn migration "phone_calls" (using python and JSON files).
Before reaching there, I need to load the schema, but I am having trouble with getting the schema loaded, as shown here: https://dev.grakn.ai/docs/examples/phone-calls-schema
System:
-Mac OS 10.15
-grakn-core 1.8.3
-python 3.7.3
The grakn server is started. I checked and the 48555 TCP port is open, so I don't think there is any firewall issue. The schema file is in the same folder (phone_calls) as where the json data files is, for the next step. I am using a virtual environment. The error is below:
(project1_env) (base) tiffanytoor1#MacBook-Pro-2 onco % grakn server start
Storage is already running
Grakn Core Server is already running
(project1_env) (base) tiffanytoor1#MacBook-Pro-2 onco % grakn console --keyspace phone_calls --file phone_calls/schema.gql
Unable to create connection to Grakn instance at localhost:48555
Cause: io.grpc.StatusRuntimeException
UNKNOWN: Could not reach any contact point, make sure you've provided valid addresses (showing first 1, use getErrors() for more: Node(endPoint=/127.0.0.1:9042, hostId=null, hashCode=5f59fd46): com.datastax.oss.driver.api.core.connection.ConnectionInitException: [JanusGraph Session|control|connecting...] init query OPTIONS: error writing ). Please check server logs for the stack trace.
I would appreciate any help! Thanks!
Nevermind -- I found the solution, in case any one else runs into a similar problem. The server configuration file needs to be edited: point the data directory to your project data files (here: the phone_calls data files) & change the server IP address to your own.
I am doing the Pintos project on the side to learn more about operating systems. I had tons of devops trouble at first with it not running well on an 18.04 Ubuntu droplet. I am now running it on the VirtualBox image that UCCS tells students to download for pintos.
I finished project 1 and started to map out my solution to project 2. Following the instructions to create a file I ran
pintos-mkdisk filesys.dsk --filesys-size=2
pintos -- -f -q
but am getting error
Kernel PANIC at ../../threads/vaddr.h:87 in vtop(): assertion
`is_kernel_vaddr (vaddr)' failed.
I then tried running make check (all the tests). They are all failing for the same reason.
Am I missing something? Is there something I need to implement to fix this? I reread the instructions and didnt see anything?
Would appreciate help!
Thanks
I had a similar problem. My code for Project 1 ran fine, but I could not format the filesystem for Project 2.
The failure for me came from the following call chain:
thread_init() -> ... -> thread_schedule_tail() -> process_activate() -> pagedir_activate() -> vtop()
The problem is that init_page_dir is still NULL when pagedir_activate() is called. init_page_dir should have been initialized in paging_init() but this is called after thread_init().
The root cause was that my scheduler was being called too early, i.e. before the call to thread_start(). The reason for my problem was that I had built in a call to thread_yield() upon completion of every call to lock_release() which makes sense from a priority donation standpoint. Unfortunately, locks are used prior to the scheduler being ready! To fix this, I installed a flag called threading_started that bails in the first line of my thread_block() and thread_yield() functions if thread_start() has not yet been called.
Good luck!
I'm trying to Install SQL Server R Services. I'm using SQL SERVER 2016 RC1. I'm following this step by step tutorial https://msdn.microsoft.com/en-us/library/mt604883.aspx Everything seems to install ok, but I get the following error when testing an R script.
Msg 39021, Level 16, State 1, Line 1
Unable to launch runtime for 'R' script. Please check the configuration of the 'R' runtime.
Msg 39019, Level 16, State 1, Line 1
An external script error occurred:
Unable to launch the runtime. ErrorCode 0x80070490: 1168(Element not found.).
Msg 11536, Level 16, State 1, Line 1
EXECUTE statement failed because its WITH RESULT SETS clause specified 1 result set(s), but the statement only sent 0 result set(s) at run time.
I'm using the following code:
exec sp_execute_external_script #language =N'r',
#script=N'OutputDataSet<-InputDataSet',
#input_data_1 =N'select 1 as hello'
with result sets (([hello] int not null));
go
Any ideas as to what may be going wrong?
Thank You
I had the same issue initially. I had mistakenly skipped the post-installation steps, specifically the step to register the R runtime with SQL Server. See MSDN post: https://msdn.microsoft.com/en-us/library/mt590536.aspx
Try to uninstall using RegisterRext first and then install. Only this worked for me:
"C:\Program Files\Microsoft SQL Server\130\R_SERVER\library\RevoScaleR\rxLibs\x64\RegisterRExt" /uninstall
Then
"C:\Program Files\Microsoft SQL Server\130\R_SERVER\library\RevoScaleR\rxLibs\x64\RegisterRExt" /install
set User Account Control to never notify when apps try to install software or make changes to your computer.
This is the first time I have tried to connect R and Tableau.
I have downloaded and installed Rserve successfully but every time I try to start Rserve is get this warning:
Starting Rserve...
"C:\Users\SIMON~1.HAR\DOCUME~1\R\WIN-LI~1\3.1\Rserve\libs\x64\Rserve.exe"
Warning message:
running command '"C:\Users\SIMON~1.HAR\DOCUME~1\R\WIN-LI~1\3.1\Rserve\libs\x64\Rserve.exe" ' had status 127
I have been searching for days and couldn't find any fix.
The Rserve() function is trying to start an application (Rserve.exe) and failed. There's a couple of things you can do.
Go to the "C:\Users\SIMON~1.HAR\DOCUME~1\R\WIN-LI~1\3.1\Rserve\libs\x64\" file directory and try loading the exe yourself, troubleshoot from there.
use the run.Rserve() function instead of Rserve(). This will use your current R session to start the Rserve server. This means the exe doesn't need to be run. This worked well for me because I am working in an environment where I don't enough privileges to run the exe. It does mean that your R session can't do anything else while the server is running, but you can always load up 2 sessions at the same time.