The tar file is present and so are the locks but waiting never seems to end on the subject file. Thank you. I am doing this using visual Studio Code and Extension Remote-ssh
Related
I have a self hosted asp.net core app deployed and in use in an enterprise environment on Windows Server 2012.
I am looking for a way to automate the update process, I am currently doing this through a bat file but keep getting windows file lock errors where the file cannot be deleted. The process I am following in the bat file is as follows:
kill the dotnet core process for the web app
clear the directory (after sleep for a couple of seconds)
copy the updates over
restart the web app
I am getting the errors in 2 where I try to clear out the existing directory which still has file locks even though I have killed the process - "Cannot delete output file - access is denied".
My question is how can I upgrade the self contained asp.net core web app in place and avoid the file locks? If the site is offline for a few seconds it is not an issue.
Thanks
There a several reasons i can think of that deleting the directory gives access denied errors.
Your process isn't actually stopped yet. I know you can use powershell to await until porcess is stopped. (or check if process is stopped yet and otherwise wait 3 more seconds)
Another process still runs in this folder. (maybe even a command line, or explorer.exe is opened in the folder.)
You need admin rights to delete this folder.
The bat file you are executing executes from this directory, and itself is locking the directory.
Try one of the following:
powershell Stop-Service.
It should wait until service is really stopped.
powershell Wait-Process Waits untill process is stopped. you can call this directly after Stop-Process
Try to run powershell to wait like this for example (in commandline):
powershell -Command "Wait-Process -Name MyProcess"`
(warning you might run into ExecutionPolicy problems)
Tip
Use msdeploy, you can remote execute commands and deploy your application.
You can use pre and post scripts (to stop and start the app) and msdeploy it self will sync the folder/directory for you.
I'm using freepascal. So after I run my code compiler creates an exe file that should create few text files. However after it creates an exe file it says "Program c:\fpc\2.6.4\bin\i386-win32\maxmin.exe exited with exitcode = 2". No text files are created. If I later run maxmin.exe manually - it works fine.
UAC - disabled and EnableLUA = 0. But I still pretty sure - it is windows 8.1 rights issue problem.
Some possibilities, in descending order of likeliness:
Note that exitcode 2 usually indicates a file not found error.
Working directory. While manually executing you set the working directory by CDing with the shell, and when indirectly executing the program's assumptions about a working directory are not satisfied.
Sometimes locks linger on Windows for a short while. Usually not noticeable in the manual execution time frames, but when programmatically executing programs in quick succession it might happen.
If you have the feeling that the EXE doesn't run at all, it might be an security software issue. After the binary is generated, the antivirus kicks in and wants to scan, locking the binary for a few seconds.
I download visual studio code for mac today. I tried to create a simple asp.net 5 web application following these instructions https://code.visualstudio.com/Docs/ASPnet5
When I open my web application folder in visual studio, it says I need to run a restore command.
I ran the dnu restore command just like the instructions tell me but it seems to always fail.
I receive different errors every time I run it. But most of them are like this one:
CACHE https://www.nuget.org/api/v2/package/System.Threading/4.0.10-beta-22816
SharpCompress.Common.ArchiveException: Could not find Zip file Directory at the end of the file. File may be corrupted.
Restore failed
There is a stack trace as well, but for brevity sake I'll omit it for now
Has anyone experienced this?
Try dnu restore --no-cache.
You may also need to remove previously downloaded files - check ~/.dnx/packages. I removed all files from that folder some time before trying the above. Also, see the comments below, if ~/.dnx/runtimes contains unexpected versions removing them may also work. Note that the current runtime version can be controlled using dnvm.
I never saw the NullReference exception, but I was getting the SharpCompress.Common.ArchiveException. I suspect there was a mismatch from what dnu thought was the cache state with the actual cache state (maybe something timed out the first time or something).
Recently I worked on a project done in the network visualization and analysis software Gephi, and I saved it with the ".gephi" extension. However, when I try to reopen the file, it gives the following error message:-
"The project file couldn't be opened. Please check the file has .gephi extension.
XMLStreamException - ParseError at [row,col]:[1,1]
Message: Premature end of file."
I'm a beginner in Gephi and only an amateur programmer. I do not understand this error message, and thus have no ideas on how to resolve it. I tried updating Gephi to the latest version. I also tried to open the file from within Gephi. Neither of those steps have resolved the problem. Can anyone help me out with this, please?
The error message "premature end of file" means that the xml file was not complete. I suppose that the whole file is empty or just the xml part of the file. so maybe the file got corrupted while saving.
Can you try to open the file with notepad or a hexeditor to verify that it has some content?
There must be some bug on the gephi files writing or reading process.
In order to identify the problem it would help if you can post a gephi log file when each error happens.
You can find the log file on gephi user directory (check http://wiki.gephi.org/index.php/Troubleshooting)
For example in Windows 7 the path is C:\Users\Your_User\AppData\Roaming.gephi\dev\var\log\messages.log
Also, if you can share the files, it will be easier to fix.
This could be related to an open bug where Java6 is used to save the gephi file and then Java7 is used to load the file, say on a different machine.
The jdk used by Gephi can be specified in /etc/gephi.conf or alternatively it can be specified as a parameter --jdkhome when launching Gephi.
The problem is with java and javac:
If you created your gephi file with open java-6-openjdk (for example) and then you sitch your java to java-7-openjdk, then this problem surges.
I fix my gephi returning to the same java and javac executables in Linux by:
(In terminal)
sudo update-alternatives --config java
and then
(In terminal)
sudo update-alternatives --config javac
Hope this can help!
On windows and such I used to use a trick to find out of a file is currently in use (written specifically).
I use to open the file for writing and if it failed most likey another process is busy accessing it.
Sadly these trick (using C OPEN with exclusive lock for writing) doesn't work on my Mac. While my curl in a terminal is still writing my -fileBusy() check fails.
fcnt call on the fd with F_GETLK doesn't reveal any locking as well.
Is there any chance for me to detect if a file is in use by another process?
Ps> listening for fsevents can't be done because my app launches after the is created by the other app / process.
Apple confirmed via email that the solution described in the link below is a valid one and not considered a private API.
More information:
http://lists.apple.com/archives/cocoa-dev/2010/May/msg01455.html
You could try running the following shell command using NSTask:
lsof -Fc path/to/thefile
That will give you the process ID and name of any process(es) that have thefile open.