Stack Overflow
Stack Overflow

Questions tagged [probe]

110 questions
7
votes
3 answers

Kubernetes readiness/liveness probe in console app

I have a console app in .net core. How to implement Kubernetes readiness/liveness probe? My app process rabbitmq messages in loop, and don`t listen any http ports.
RouR
  • 6,136
  • 3
  • 34
  • 25
7
votes
3 answers

Providing multiple health check URLs for kubernetes probes

I am using container Probes to check the health of the application running inside the container within kubernetes pod. For now my example pod config looks like, "spec":{ "containers":[ { "image":"tomcat", "name":"tomcat", …
Sujai Sivasamy
  • 1,101
  • 3
  • 14
  • 32
7
votes
1 answer

Probing/sampling/interpolating VTK data using python TVTK or MayaVi

I would like to visualise a VTK data file (OpenFOAM output) using python. The plot I would like to make is a 1-d line plot of a quantity between two endpoints. To do so, the unstructured data should be interpolated on the points which lie between…
Newfarmer
  • 349
  • 2
  • 9
6
votes
0 answers

Ignore Path MTU on Linux when sending UDP packets

I am implementing DPLPMTUD and I want to suppress the Linux kernel from returning -1 with errno = EMSGSIZE when I send UDP packet longer than the local interface's MTU. I want to avoid the pain of dealing with error handling when several datagrams…
Dmitri
  • 479
  • 3
  • 10
5
votes
1 answer

Getting BPF programs working with USDT probes (Dtrace) in Linux

So I'm following this link to attach a BPF program to user space probes, Dtrace format (see section User Statically Defined Tracepoints). C program: #include int main() { DTRACE_PROBE("hello-usdt", "probe-main"); } The checks to…
mdaniel
  • 191
  • 1
  • 12
5
votes
1 answer

Phone doesn't send all stored ssids while capturing Wi-Fi probe wequests

I build a script with scapy to capture probe requests in a monitornig wi-fi interface. I successfully capture the requests, and some of the SSIDs contained in them. But most of the networks stored in the phone don't get broadcasted. And there isn't…
mikemx55
  • 123
  • 1
  • 7
5
votes
2 answers

How to list current active systemtap probes

Could anyone please tell me how to list current active systemtap probes in the system? I guess there might be some infomation from the "/proc".
brian
  • 265
  • 1
  • 9
4
votes
1 answer

How to add readiness probe for snapshot-controller Deployment

I am trying to add livenessprobe for snapshot-controller. snapshot-controller deployment mentioned here to be specific. I tried to exec into controller pod to see what can be used for liveness probe. But not able to get into the pod. Has someone…
ambikanair
  • 4,004
  • 11
  • 43
  • 83
4
votes
1 answer

Linux USB device driver not getting probed

I'm working on a device driver for Linux. It's a USB pen tablet. The problem is that the driver's probe callback never gets called. dmesg just shows: generic-usb: probe of 0003:099A:2620.000F failed with error -22 and i never get to connect to the…
Alex
  • 41
  • 1
  • 2
4
votes
1 answer

Liveness-Probe of one pod via another

On my Kubernetes Setup, I have 2 pods - A (via deployment) and B(via DS). Pod B is somehow dependent on Pod A being fully started through. I would now like to set an HTTP Liveness-Probe in Pods B, to restart POD B if health check via POD A fails.…
Abhi Gadroo
  • 200
  • 1
  • 10
4
votes
2 answers

What are the best practices for a health check API and probes in micro-services Kubernetes environment?

We are developing tons of micro-services. They all run in Kubernetes. As ops, I need to define probes for each micro-service. So we will create a health check API for each micro-service. What are the best practices for this API? What are the best…
Antoine
  • 310
  • 1
  • 5
  • 14
4
votes
2 answers

livenessprobe failed with EOF (nginx container)

I have a container running nginx and it listens on port 443 of the pod id. It runs fine by itself; however, if I specify a liveness probe, then the probe will fail with 5m54s Warning Unhealthy Pod Liveness probe failed:…
skwokie
  • 425
  • 1
  • 6
  • 20
4
votes
2 answers

Apache tika detects mime-type incorrectly for csv

I've created .csv file using excel and I wrote following code using apache tika: public static boolean checkThatMimeTypeIsCsv(InputStream inputStream) throws IOException { BufferedInputStream bis = new BufferedInputStream(inputStream); …
gstackoverflow
  • 36,709
  • 117
  • 359
  • 710
4
votes
1 answer

How often does a device send a wifi probe request?

When a device has wifi enabled, it sends out a wifi probe request, containing your signal strength, SSID, and MAC adress. I was wondering, how often does a device send out this request? I heard that when a device is connected to wifi, it will double…
S. ter Keurs
  • 57
  • 1
  • 9
4
votes
1 answer

Enumerate the pages in a memory range

I'm using C++ on Windows under Visual Studio 2012. I have a start and end memory address and need to generate a list of page base addresses/handles between the two addresses. I considered the possibility of probing the pages manually but thought…
kvanbere
  • 3,289
  • 3
  • 27
  • 52
1
2 3 4 5 6 7 8