I create a instance in horizon. But its status is "error". Then I run
virsh list --all
There is nothing. I have checked log files, including nova/api.log, nova/compute.log, and I can not find any clues. Could someone give some advice ?
Are you using devstack? In that case you should make
cd ~/devstack
./rejoinstack.sh
After that you will be executing "screen" tool, with pressing Ctrl+a and then " you will see all the services running and their logs, so when you have it you have to reproduce the error again and see in the different services until you see where the error is happening.
To exit from screen you have to press Ctrl+a and then d
Related
I am using Ubuntu 18.04-3 and when executing the command >
personal.unlockAccount(web3.eth.accounts[0],null)
I am getting the following error,
enter image description here
I tried some of the suggestions here (enter link description here)
and the suggestions (here) for the internal/ethapi/api.go
I included in the file
--allow-insecure-unlock (//I have add as in the suggestions but does not indicate where and how to place it//)
Appreciate your time in advance
You have places --allow-insecure-unlock at the wrong place. It should be when starting geth instant.
Example:
$ geth {--rpc etc your other flags} --allow-insecure-unlock
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 am getting started with Ethereum and building a Dapp (what the hell does this mean by the way?). On the basic installation of the application (https://github.com/ethereum/wiki/wiki/Dapp-using-Meteor#connect-your-%C3%90app), I get this error upon attempting to connect.
geth --rpc --rpccorsdomain "http://localhost:3000"
I0804 23:48:24.987448 ethdb/database.go:82] Alloted 128MB cache and 1024 file handles to /Users/( . )Y( . )/Library/Ethereum/chaindata
Fatal: Could not open database: resource temporarily unavailable
I literally just got started, I set up ethereum through homebrew and made an account with geth. Can't get past right here.
Thank you!
Your geth client is already running in the background. You can attach to it by typing:
$ geth attach
in your command line. This will allow you to run commands on the geth client console.
I'm trying to add torrents to transmission from python. The code is shown below...
def download_movie(magnet_link):
os.system('transmission-gtk')
#webbrowser.open(magnet_link)
os.system('transmission-gtk ' + magnet_link)
As you can see I've tried 3 different options to add these torrents but none work.. I've also added XDG_RUNTIME_DIR="/run/user/1000" in the crontab file. The log in /var/mail is running the script but it shows: (transmission-gtk:14091): Gtk-WARNING **: cannot open display:. I've also run the command xhost + as said in http://www.thegeekstuff.com/2010/06/xhost-cannot-open-display/ but still the gtk-warning comes up. Anyone have any ideas? What I want eventually is that I run this script on a pi so if anyone has any alternatives, I'm all ears.. Thanks.
It's because you are trying to use GUI app where console one would be appropriate.
See man transmission-remote for details:
DESCRIPTION
transmission-remote is a remote control utility for transmission(1) and transmission-daemon(1).
I am trying to do an openstack deployment according to the book "openstack clouding computing cookbook2012". I did everything exactly the same as the book. Everything was fine until I ran the command:
euca-run-instances ami-00000002 -t m1.small -k openstack
to start an openstack instance.
After I ran this command, euca-describe-instances showed that the instance status was pending at first. But after a while, at the openstack computing node, I saw error message saying:
block nbd15: receive control failed (result -32)
Then euca-describe-instances showed the instance status was error.
I tried twice of the whole process (I mean start over from installing virtual machine), and the same result.
Can anybody help? I am now stuck here.
Sorry to request clarification, but what version of OpenStack are you using and what was the exact error message (please include the whole long line, perhaps with some context)? The text "receive control failed" does not appear in the nova codebase.