PHP uploads failing

[M1DUL]

Hi All,
I have also noticed this too, I find it is very intermittent, it looks as though it needs a load of errors, before it sends the email.
I have attached my Cumulus MXdiags logs. I have also attached Cumulus MX Alarm Settings for your information to make sure I have got it setup right.

MXdiags.zip

Cumulus MX Alarm Settings.png

I hope this information is useful.

[mcrossley]

Mike, yours is different, every other upload fails on the first attempt, but works on a retry. If it works on retry it is not considered a failure, people would in inundated with emails if one were sent for every transient issue.

However, your PHP upload does appear to have some issues with that number of retries. Even on start-up the first connection to the server to test it supports compression sometimes fails. It maybe they are timing out, the error MX gets back is "task cancelled". If you turn on debug logging it may give a clue as it if that is due to timing out or the remote end terminating the connection.

As this is not FTP related, I'll split it off to a separate topic.

[M1DUL]

Hello Mark,
Thank you for your reply. I have followed your instructions and turned on the debug logging. For your information, I hope you can find out what is causing the problem.

20240208-103708.zip

[mcrossley]

No added information there I'm afraid. My next step would be to look at the web server (and PHP if available) logs on your server.

[M1DUL]

No added information there, I'm afraid. My next step would be to look at the web server (and PHP if available) logs on your server.

Hello Mark,
Thank you for having a look at the MXdiags log. That is a shame that no information showed up.

What does this mean in the MXdiags log just after the error message?

Exception Type: System.Threading.Tasks.TaskCanceledException
Message: A task was canceled.
Source: mscorlib
Stack Trace: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at CumulusMX.Cumulus.<UploadString>d__960.MoveNext()

Many Thanks for any information.

[mcrossley]

It just means that the process MX started to perform the upload has been cancelled by the system. Unfortunately, it gives no information as to why it was cancelled.

[M1DUL]

No added information there, I'm afraid. My next step would be to look at the web server (and PHP if available) logs on your server.

Hello Mark,
Thank you for the information once again.

I have had a look at the server, it is running PHP version: 8.1.27. Is the PHP logs, is it SSL logs by any chance? If it is, they all come back with code 200.
I can not see any other logs, the other one are about viewing the website etc.

I have got Intouch with Hostpresto about those errors, and they have whitelisted some Modsec rules again. So hopefully that will solve the problem.

[mcrossley]

I doubt it would be modesc rules as two uploads seem to work then it fails - could be wrong though.

I wonder if they have limited connection reuse to two uses? That would be unusually low number if they had.