I'm using Xamarin.Forms with azure and everything been working fine, but today I started getting this weird error - "The request could not be completed. (Internal Server Error)", the only thing that I know of that I've changed lately is the sql server password. So I'm wondering if that could be the issue of if it could be something else and how to fix it. The diagnostics tool is also showing http server errors whenever a request is attempted.
Ok, so I figured it out, sure enough it was the change in my sql server password, to fix it I simply changed it back to what it originally was.
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I am trying to post a simple json to our backend api through REST POST snap. Everything was working. And then we changed the url to a new url and I updated the url in the snap.
But now request is simply not reaching our new api server.
In fact, the snaplogic pipeline also completes successfully, with all snaps turning green. Only when I click on the properties of pipeline, I get to know that REST POST snap has failed, with attached screenshot error.
Please note that we are able to reach the new api server via postman or any other rest client. Nothing has changed at all except for the url.
Can you please help me understand, what exactly is going wrong and where? How to debug this?
Just for everyone's reference, I was able to find out the root cause.
Reason was that the api url was not accessible to snaplogic pod running in our enterprise because of Zscaler firewall.
The confusing part here was the error message returned which says "SSL issue, connection was reset". So if you see issue saying "Connection was reset", assume that snaplogic is unable to access the url as the first problem. Only after making sure, it is not the case, go and look for what exactly the error says.
I am randomly getting a login prompt asking me to log in to localhost:3000 while working on my project (in localhost). Sometimes it does not show up the whole day and next morning I get 10 prompts in a row (canceling through pressing escape), and then it starts working properly again.
These are the errors I get in the console when it has been canceled:
I suspect one of the following, but really I have no idea:
Webpack is not configured correctly
There is some resource that requires authentication (but I can't figure out which), I am running everything on localhost
There is something wrong with the node.js server thingy...
Any tips on what might be going on are very welcome.
Edit: My backend is mocked in localhost.
Edit 2: I found this: Receiving login prompt using integrated windows authentication and it is possible that the thing that is causing the error is some faulty configuration in my IIS. But it is difficult to verify since it only shows up randomly.
Webpack has nothing to do with your API calls.
401 errors are due to auth credentials failing.
It means that your backend ask you to update your token(s) used for auth in API calls.
I am finding we receive this error:
Failed to invoke 'CreateChatRequest' due to an error on the server. HubException: Method does not exist.
at _this.callbacks.<computed> (chat.min.js:2060)
at HubConnection.processIncomingData (chat.min.js:2154)
at WebSocketTransport.HubConnection.connection.onreceive (chat.min.js:1881)
at WebSocket.webSocket.onmessage (chat.min.js:3922)
The method does exist. The code does work, then after a while of testing, it returns this and won't stop.
What seems to temporarily fix the issue is restarting the Azure SigR service, but it comes back. This issue does not occur when targeting local SigR during development; it only happens against Azure SigR.
According to documentation, this seems to be a catchall error when something errors up on the server but, no exceptions are being logged. I've turned on detailed errors, but that didn't change the error coming back from the server. I've also tried catching the exception and sending back a HubException to see what is going on, but that didn't change the error message either.
TIA for any help.
So the answer, for me, was that i'd checked in (to source control) my azure service's connection string, so other devs were also using this and pointing their versions of the API service at that azure service. So when i ran my code sometimes azure would hit my API service with the new method in and it would work, sometimes it would hit someone else's API service and so fail because their code didn't have the new method in.
I had written a mini App in asp classic this week. It worked perfectly on the test server connecting to the test data base. Then yesterday evening I moved it from the test server to the live server updating the connection strings to the live db.
I published it as an application to the default website in the default app pool. Then I tested it and it worked perfectly.
This morning however both myself and another user receive a 500 -internal Server error when we try and save changes to the database(there appears to be no issue reading from the db) yet my two other collogues have no issue at all.
Even more odd is that the same thing is happening on the test server where the code hasn't been changed in weeks. But this morning I cannot commit to the db from there either.
I have attempt to enable more detailed error tracking and logging but the property options for the server are seem unavailable when i tried to set up custom Active Server Pages (ASP) error pages off online tutorials.
The server is used by a lot of people so I was wondering is their a permission issue depending on the user that restricts writting to the database. Or something else that may have changed to allow some users to write data and others to receive the error.
Im very knew to IIS so it may be something glaringly obvious that I haven't considered.
Thanks
This article should help you:
In earlier versions of IIS, error messages from classic ASP scripts
were sent to a Web browser, by default. Because these error messages
might reveal sensitive information to malicious users, IIS 7 and above
disables this feature by default. When your classic ASP scripts
encounter an error in IIS, you receive the following error message by
default:
An error occurred on the server when processing the URL. Please contact the system administrator.
If you are the system administrator please click here to find out more about this error.
I have a very strange problem with post data being lost in transit. The log-in form for our ASP web app has a for submitting the username / password. The ASP page then receives this post, checks the credentials, and re-directs successful log ins. The problem I'm seeing is that intermittently the post data is just dropped. The request appears on the server, but there is no data. Client side is IE8, server side is IIS running ASP. The user will be fine for a time, and then as soon as they get his error, they have to restart the machine to solve it. What could be causing this and what type of diagnostics can I run to locate the problem?
Use Fiddler tool for inspecting client-server http communication. Maybe something is dropping data between client and server.
You can save each request which you receive in server in some file and to see if they really does not send you nothing. Try to see IIS log for error. Maybe your IIS is busy with other requests and refuse to accept this one. Than it will send 500 error to the client.