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We are currently developing a cloud solution that would require 2000+ clients to publish events (1-2 per second) into an Event Hub. We built a prototype that gives each client a Shared access policy (Authorization Rule), and creates a SAS token with a publisher policy as defined here

We thus are able to identify the publisher of each event by inspecting the x-opt-publisher system property, and to revoke access to the Event Hub for each client at any time, without having to resort to token expiry and renewal.

However, we recently learned that the maximum amount of SAPs / Authorization rules is 12, so this solution ultimately will not work.

Is there another solution to this problem? Our goals are:

• Avoid having to use token refresh, as this would require adding code to all clients.
• Being able to revoke access to the Event Hub instantly in case a client either gets compromised, misbehaves, malfunctions due to a bug, or the associated customer's contract is terminated
• Avoid having to use a frontend service authenticating the clients, as we are talking about a substantial additional system load (5000 requests per second)
• Avoid having to use IoT hub, as the costs are far higher than with our solution, and we do not need all that functionality

Thanks in advance

This is a continuation of my questions:

Declaring a functional recursive sequence in Matlab

Is there a more efficient way of nesting logarithms?

Nesting a specific recursion in Pari-GP

But I'll keep this question self contained. I have made a coding project for myself; which is to program a working simple calculator for a tetration function I've constructed. This tetration function is holomorphic, and stated not to be Kneser's solution (as to all the jargon, ignore); long story short, I need to run the numbers; to win over the nay-sayers.

As to this, I have to use Pari-GP; as this is a fantastic language for handling large numbers and algebraic expressions. As we are dealing with tetration (think numbers of the order e^e^e^e^e^e); this language is, of the few that exist, the best for such affairs. It is the favourite when doing iterated exponential computations.

Now, the trouble I am facing is odd. It is not so much that my code doesn't work; it's that it's overflowing because it should over flow (think, we're getting inputs like e^e^e^e^e^e; and no computer can handle it properly). I'll post the first batch of code, before I dive deeper.

The following code works perfectly; and does everything I want. The trouble is with the next batch of code. This produces all the numbers I want.

I am very new to Excel VBA I made this macro to remove duplicates based on column name "container". Now there are 2 columns in excel with the name "Container".

I am trying to change the background color and text color of a material button-through style. However, I see no change in IDE and as well as on phone. Here is a screenshot of the issue.

The button next to cancel misbehaves, after checking in tons of attributes I fail to change background color.

Here is my XML:

Testing a multithreaded application with JUnit5, the automated tests run just fine. But in manual debugging, the environment misbehaves, and I would like to know how to get it to act as it should.

IntelliJ (using the Java VM + its debugger) has two general options to suspend on breakpoints: either "All" = all threads, or "Thread" = the current thread only.

(Which thread is "the current thread" may be unclear and causing issues, but that's been discussed separately, see other issues here on stackOverflow.)

Wanted behaviour:

• a breakpoint to suspend a specific thread, and the JUnit test environment, which is part of the IDE debugging.

Actual behaviour:

• either all threads are suspended, even those which should be running
• or only a single thread is suspended, and JUnit @AfterEach/@AfterAll annotations kill the resources currently debugged, terminating the threads that should be running, etc.

How to achieve the Wanted behaviour?

(Environment: AdoptOpenJDK8, AdoptOpenJDK11 in Java 9 mode, IntelliJ 2020.3, JUnit-Jupiter 5.7.0)

I recently implemented a Builder class, but I wanted to avoid throwing exceptions. So I had an idea that I could parameterise the Builder with an array of bools representing which fields have been set. Each setter would return a new specialisation of the Builder with the corresponding field flag set. That way I could check that the right fields were set at compile time.

It turns out that complex data types as non-type template arguments is only available in C++ 20. But I experimented with it anyway.

It turns out it misbehaves in a strange way. As each new specialisation is returned, the "true" flags bunch up towards the start, as shown in this sample debug output:

I've had to deal with another MS nonsensical issue when I couldnt install their worthless WMR portal through the MS store. Luckily its possible to run Powershell commands to install it manually.

You can use similar commands to install and uninstall other apps if the MS store misbehaves provided you know the name for those apps.

When running my jupyter notebooks, the ipython kernel (Python 3.8, Anaconda) keeps dieing and being restarted.

I want to find what causes it to misbehave. Sadly, I can find no debugging information other than the kernel is dead and restarted.

How can I find more verbose information which may help with post mortem analysis? Is there any error log or something like that?

Android 9 introduced an option to restrict an app's battery usage (sometimes phrased as limiting app background activity). This option can be set in the app settings:

The effect of this is described briefly on this page: alarms won't be triggered at the specified time presumably, neither will jobs. Not always great for user experience, especially if user is unaware or forgot that this restriction is set.

However I've seen that a few apps manage to detect when this option is set to "Restricted", showing for example a message indicating that some features may misbehave because of it. Which API can be used to detect this? I've tried:

• UsageStatsManager.getAppStandbyBucket(): querying this method before and after changing the battery restriction didn't change its value. Seems to be related more to app usage frequency.

• PowerManager.isIgnoringBatteryOptimizations(): again, no change.