procs | Python , Processes , and Prana
kandi X-RAY | procs Summary
kandi X-RAY | procs Summary
Python, Processes, and Prana.
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Top functions reviewed by kandi - BETA
- Start processes
- Start the subprocess
- Wait for the subprocess to finish
- Set the stdin
- Run a command and return a Process object
- Start the worker
procs Key Features
procs Examples and Code Snippets
Community Discussions
Trending Discussions on procs
QUESTION
I have a docker container with an XDP program loaded on it. I also have a batch file for the bpftool
to run. When I run bpftool batch file tmp_bpftool.txt
, I get Error: reading batch file failed: Operation not permitted
. I am the root in the container. So, what could possibly be the problem?
The batch file is as below: (512 updates on map 59 and 1 update on map 58)
...ANSWER
Answered 2022-Mar-29 at 00:11TL;DR: Your map update works fine. The message is a bug in bpftool.
Bpftool updates the maps just as you would expect; and then, after processing all the batch file, it checks errno
. If errno
is 0, it supposes that everything went fine, and it's good. If not, it prints strerror(errno)
so you can see what went wrong when processing the file.
errno
being set is not due to your map updates. I'm not entirely sure of what's happening to it. The bug was seemingly introduced with commit cf9bf714523d ("tools: bpftool: Allow unprivileged users to probe features"), where we manipulate process capabilities with libcap. Having a call to cap_get_proc()
in feature.c is apparently enough for the executable to pick it up and to run some checks on capabilities that are supported, or not, on the system even if we're not doing any probing. I'm observing the following calls with strace
:
QUESTION
As part of our development lifecycle we clone our prod databases to replace our dev databases, the next step is to apply the correct privileges to the newly cloned databases as our devs need full access to the dev environment whilst they shouldn't have write access to the prod environment. So I have a requirement to change the owner of all objects in the dev databases to allow the devs to replace and update existing tables, views, procs etc. I have so far been unable to find how to achieve this.
...ANSWER
Answered 2022-Feb-28 at 20:51After cloning the database, transfer ownership to another role using the GRANT OWNERSHIP (see also example) function using COPY CURRENT GRANTS
clause, for example:
QUESTION
Assuming that there is a dummy.txt
file that holds the following information:
ANSWER
Answered 2022-Feb-16 at 14:09First, I believe you have an error in method Groups.add_to_dict
. I have commented out the erroneously statement and added the correct statement after it:
QUESTION
Info:
...ANSWER
Answered 2022-Jan-20 at 22:52Try the following code:
QUESTION
I'm rewriting my webapplication from Python (Django) to Nim (Prologue). I want to keep using Django's database that it has provided me with thus far, but I'm struggling how to re-build the way Django encrypts the password. That is, according to Django's own documentation:
By default, Django uses the PBKDF2 algorithm with a SHA256 hash
I found the nimcrypto library as a starting point, but given my lack of cryptographic knowledge a lot of the terminology in there and how to use the given procs goes completely over my head. How can I rebuild the Django encryption using it?
...ANSWER
Answered 2022-Jan-14 at 22:57Warning: As has been pointed out to me, it might be a better idea to use a nim-wrapper of libsodium for this, as it is the more established library. How you would do that is beyond me though, as libsodium has no obvious "pbkdf2" functions.
After researching this topic for a fair bit and going over the code in the django repo and the nimcrypto lib, I was able to reproduce the hashes I have in my database. The key here is, that nimcrypto has a pbkdf2 proc in a module of the same name, that you need to pass an HMAC
type, which contains the sha256 algorithm as well as your server's secret key. You also need to be aware that the hashes stored in your database as strings will have the number of iterations and salt appended to them. They'll also be base64 encoded versions of the hash.
QUESTION
Following is the code to use OutputDataReceived to capture verbose information from curl.
There is no information can be captured this way. What is wrong?
...ANSWER
Answered 2022-Jan-05 at 15:42--output (or -o) writes the downloaded content into the given file (instead of writing it into stdout). The rest of cURL's output (progress meter, error messages, verbose mode etc.) is still written into stderr, which is shown in the terminal. https://en.wikipedia.org/wiki/Standard_streams
This means that you can only see the output of the HTML in C# with OutputDataReceived
but not the output made by the verbose mode.
This code in a running console application, prints all the verbose info to the console without writing it manually with Console.WriteLine()
:
QUESTION
I run falco and falcosidekick with docker compose, without k8s.
I need to retrive aws instance metadata to falco rules output. I've found the jevt field class but I encountered an error on falco container start
...ANSWER
Answered 2021-Nov-25 at 22:59several things to know:
- the syntax for
jevt.value
isjevt.value[/awsRegion]
(no quotes) - these kind fields are for events in json format, it works for kubernetes audit logs but in your case where the rule is based on syscalls
- falco will not query aws metadata either, you will not have this information in your output like this
Regards,
QUESTION
I'm trying to use some simple I/O macros introduced in book "Assembler Language Programming for IBM Z System Servers" (Macros introduced in Appendix B section). But when I'm tryin to run the sample program, as soon as program reach the first macro system dump occurs. Also there is IEF686I in the output. I'm a student learning IBM assembly language and I'm not familiar with JCL and I don't know if I'm doing something wrong in it. Is the format of getting input and assigning the output area OK or I should do it in a different way? Here is the JCL:
...ANSWER
Answered 2021-Nov-18 at 11:15Something is wrong with your private macro PRINTOUT, or something is wrong with the stetup done before calling the macro in line 6 of your assembler source. I can't tell what it is, because you didn't provide details about that macro (others have suggested to rerun the job with PRINT GEN).
Lack of more information, this is my analysis of what happened:
This is the ABEND information printed in the joblog
QUESTION
I am new to dealing with something like a supervisor on the CentOS server I ask for help to solve this issue.
I am facing issue with Laravel websockets
(beyondco).
In localhost, everything works well but in production, I started to install the supervisor package for centos 7 and I follow the steps in the documentation step by step.
After I install the supervisor package am going to directory /etc/supervisord.d
and create websockets.conf
and vim the file with the following:
websockets.conf (i guess that this file has misconfiguration)
...ANSWER
Answered 2021-Nov-14 at 16:23Note I voted to close this question as a typo, bcs that's all it is. But there are other details that would not fit in a comment.
In your websockets.conf
, this line has a typo:
QUESTION
I'm just learning service mesh using istio and I found a strange behavior.
To understand maxRequestsPerConnection
of Istio DestinationRule
CRD, I write the below manifest and apply it.
ANSWER
Answered 2021-Nov-03 at 09:35First things first: HTTP/1.1 does allow multiple request per connection with Keep-Alive
header. This is the default behavior (RFC 2616, Section 8.1).
The documentation is a bit unclear.
maxRequestsPerConnection description states:
Maximum number of requests per connection to a backend. Setting this parameter to 1 disables keep alive. Default 0, meaning “unlimited”, up to 2^29.
Setting maxRequestsPerConnection
to 1
disables Keep-Alive
. Setting it to any other value (value > 1) switches Keep-Alive
back on.
Setting this field to proper value (not too high, not too low) is the hard part of configuring Istio, and is dependent on your application needs and traffic.
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Install procs
You can use procs like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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