probe | Command-line service interrogator | HTTP library
kandi X-RAY | probe Summary
kandi X-RAY | probe Summary
Probe is a command line tool that does one thing: interrogates a service to determine if it is alive/ready. Whether the probe result corresponds to aliveness or readiness depends on how the service handles connections and/or requests on the specified address.
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Top functions reviewed by kandi - BETA
- Main entry point
- Probe returns an HTTPProbeError with the given address .
- makeAttempts tries to probe the given address with retryDelay . If retryDelay is exceeded the number of attempts will be retried .
- parseFlags takes a flagset and parses it into a config .
- usage returns a usage function for the given flagset .
- NewProber returns a new prober
- NewInsecureClient returns an insecure client
- Probe implements Probe interface .
- NewDialer returns a new net . Dialer .
probe Key Features
probe Examples and Code Snippets
make
make build-docker
make build-docker-cross
make builder
for f in pkg/*; do cd $f && tar -zcvf probe-${VERSION}-$(basename $f).tgz probe; cd ../..; done
curl -sL https://github.com/karlkfi/probe/releases/download/v0.3.0/probe-0.3.0-linux_amd64.tgz | sudo tar zxf - -C /usr/local/bin/
go get github.com/karlkfi/probe
brew tap karlkfi/homebrew-terminal
brew install probe
static final int advanceProbe(int probe) {
probe ^= probe << 13; // xorshift
probe ^= probe >>> 17;
probe ^= probe << 5;
UNSAFE.putInt(Thread.currentThread(), PROBE, probe);
return probe;
def _probe(self, key):
index = self._index(key)
for _ in range(self.capacity):
yield index, self._slots[index]
index = (index + 1) % self.capacity
static final int getProbe() {
return UNSAFE.getInt(Thread.currentThread(), PROBE);
}
Community Discussions
Trending Discussions on probe
QUESTION
State of the application:
- A single virtual machine which runs an apache server.
- Application exposed via the virtual machine's public IP (not behind a loadbalancer)
I have an healthprobe endpoint running that needs probed every few seconds to see if the app is up, and trigger an alert in case it is not.
What are my options? I want to get the healthprobe up and running first, before I move to a virtual machine scale set and a load balancer.
...ANSWER
Answered 2021-Jun-16 at 00:05Under Support+troubleshooting -> Resource health of your virtual machine portal panel, you can set up a health alert. You can then select under which conditions the alert should be triggered. In your case, Current resource status: Unavailable should work just fine. You can also implement a custom notification (E-Mail) under Actions or implement a logic that triggers an Azure Function or Logic App that performs an action when the VM is unavailable.
To detect if your application in Apache server is working correctly you can use a monitoring solution that checks the Apache error logs.
QUESTION
looking to understand the order in which kubenetes examine the pods using the 3 type of probes- startup, readiness and live.
How to understand or design these 3 probes correctly for normal applications? What is the chance of getting conflict or breaking the application if the startup probe has wrong entries
...ANSWER
Answered 2021-Jun-15 at 16:06This runs first. When it succeeds, the Readiness Probe and Liveness Probe are run continuously. If this fails, the container is killed.
Use this for "slow staring apps", you can use the same command as Liveness if you want.
The kubelet uses startup probes to know when a container application has started. If such a probe is configured, it disables liveness and readiness checks until it succeeds, making sure those probes don't interfere with the application startup. This can be used to adopt liveness checks on slow starting containers, avoiding them getting killed by the kubelet before they are up and running.
From configuring probes
Liveness probeThis is used to kill the container, in case of a deadlock in the application.
Readiness probeThis is used to check that the container can receive traffic.
QUESTION
readinessProbe: Indicates whether the container is ready to respond to requests. If the readiness probe fails, the endpoints controller removes the Pod's IP address from the endpoints of all Services that match the Pod. The default state of readiness before the initial delay is Failure. If a Container does not provide a readiness probe, the default state is Success
If the readiness probe fails (and the Pod's IP address is removed from end point), what happens next? Will the Pod's readiness probe conditions be checked again? Will it check again after initial delay? Is there any chance the Pod's IP address is added to the end point again (if the Pod self healed after readiness probe fails)? Will that Pod receive traffic again incase if it's healed?
...ANSWER
Answered 2021-Jun-14 at 03:24It's checked again after the same periodSeconds
delay as usual and then when it passes successThreshold
times in a row it will be considered Ready again with all the normal behaviors that entails.
QUESTION
I have a deployment with two containers, let's say A and B.
container A
serves http requests, the important container in the deployment. has liveness and readiness probes properly set.
Container B
serves as a proxy to a certain third party service through an ssh tunnel, has a very specific usecase, but for whatever reason, the third party service can be unreachable which puts this container on a crash loop.
The question is: How can I make this pod serve requests even if Container B
is on a crashloop?
TLDR; How to make a deployment serve requests if a specific container is on a crashloop?
...ANSWER
Answered 2021-Jun-13 at 20:51You kind of can't. You could remove the readiness probe from B but any kind of crash is assumed to be bad. Probably your best bet is to change B so that it doesn't actually crash out to where the kubelet can see it. Like put a little while true; do theoriginalcommand; sleep 1; done
bash loop on it or something so the kubelet isn't aware of it crashing. Or just make it not crash ...
QUESTION
I have a MPI program under Intel C++ with its Intel MPI library.
According to the user input, the master process will broadcast data to other worker processes.
In worker processes, I use a do-while loop to keep receiving data from master
...ANSWER
Answered 2021-Jun-11 at 10:22By the following setting, the above issue has been solved.
QUESTION
Running a test in Fitnesse gives:
Could not complete testing: fitnesse.slim.SlimError: Error SLiM server died before Header Message could be read.
When using Slim RunnerW.exe to debug my test I get an exception:
System.BadImageFormatException
: Could not load file or assembly 'file:///c:\path\assemby.exe' or one of its dependencies. The module was expected to contain an assembly manifest.
I used ProcessExplorer to check and RunnerW.exe was running in 64bit mode. My code is compiled with "Any CPU", the only difference with another working project is that it is a .net 5 (core) project using FitSharp 2.8.2.1 NuGet package.
After enabling the FusionLog it was clear that it could not load my main test assembly. This is part of the log:
...ANSWER
Answered 2021-Jun-09 at 15:38Some things that finally got me up and running:
1: Do not reference the executable (file ending with .exe
) but refer to the .dll
instead. No matter how it is compiled, trying to load the the .exe file as an assembly will always throw a System.BadImageFormatException
.
2: Fish the .Net Core versions of Runner.exe
and RunnerW.exe
(and their dependencies) out of the NuGet package and use those instead of the older SLIM .Net runners (if you are migrating). FusionLog
does absolutely nothing with .Net Core, so if there is any logging going on then you know that the process is not running .Net Core.
3: If you got the FitSharp projects from GitHub and are linking to the projects instead of using NuGet, then remove the post build actions to copy the files. Instead go to your test project Dependencies
-> Projects
-> fit
open Properties (F4) and set the options Reference Output Assembly
, Copy Local
and Copy Local Sattelite Assemblies
to Yes. Do the same for the FitSharp and Runner projects.
QUESTION
I need to create an inbound nat rule on my loadbalancer to redirect a certain port to a virtual machine. I've created my loadbalancer like so. I'm on Ansible 2.9.6.
...ANSWER
Answered 2021-Jan-07 at 02:45What you need to find is not the azure_rm_virtualmachine
module in Ansible, it should be the azure_rm_networkinterface
module. You can configure the ip_configurations
property of the azure_rm_networkinterface
to set the load_balancer_backend_address_pools
, this property can associate the VM to the Load Balancer.
QUESTION
I am trying to aggregate a bunch of dictionaries, with string keys and lists of binary numbers as values, stored in a pandas dataframe. Like this:
Example dataframe that this problem occurs with:
...ANSWER
Answered 2021-Jun-09 at 09:46The issue is that merge_probe_trial_dicts
mutates the original list that is in df4
instead of creating a new one.
Just add .copy()
as below and you should be good.
QUESTION
Just wondering if it's possible to pass byte data from io.
I'm trying to extract frames from a gif with ffmpeg then use Pillow to resize it.
I know you can extract frames from a gif with Pillow, but sometimes it butchers certain gifs. So I'm using ffmpeg as a fix.
As for why I'd like the gif to be read from memory is because I'm going to change this so gifs from urls will be wrapped in Bytesio instead of saving.
As for why I have the extra Pillow code, I did successfully get it working by passing an actual filename into the ffmpeg command.
ANSWER
Answered 2021-Jun-07 at 23:03For a single image your code is working fine.
It looks like you are missing proc.wait()
at the end and that's it.
For multiple images, you may take a look at my post here.
You may simplify the code, for working with images.
I made few changes to your code, to make it more elegant (I think):
- You don't need
'-vsync', '0'
argument. - I replaced
'-'
with'pipe:'
(I think it's more clear). - You don't need to set
bufsize
unless you know that the default is too small. - I removed
stderr=SP.PIPE
, because I wonted to see the FFmpeg log in the console. - I added
proc.wait()
afterproc.communicate
.
The code sample starts by building synthetic GIF image file for testing.
Here is the code sample:
QUESTION
End Goal: To have a macOS app to monitor the temperature values from my bluetooth bbq probe, refreshing the data every X mins to keep an eye on it whilst at my desk.
macOS App
JSON structure
...ANSWER
Answered 2021-Jun-04 at 16:22A few things had to change in order to get this to compile and work:
probeData
shouldn't be an Array -- it should be an optional property- That means when you decode, you shouldn't put it inside
[ ]
- Then, in your list, you have to address each item of the
devices
property (see theForEach
)
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Vulnerabilities
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Install probe
After checking out the Git repo, Probe can be compiled with Make.
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