Error events 50000780 in Event Log on Azure, what do they mean?

Question

In my Azure Web Site's Event Log I see same error every 1-5 minutes:

1 [varies]
5
50000780

What does this error message mean? Thank you in advance!

Answer 1

I found a similar issue, albeit for Sharepoint and Lightswitch. It looks like they had a similar error number show up in their event logs, breaking it down into the XML output:

<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="IIS Express" />
    <EventID Qualifiers="32768">2284</EventID> <!-- Searched on this -->
    <Level>3</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2013-09-14T03:48:18.000000000Z" />
    <EventRecordID>8608</EventRecordID>
    <Channel>Application</Channel>
    <Computer>PSN-W12S-720</Computer>
    <Security />
  </System>
  <EventData>
    <Data>1</Data>
    <Data>5</Data>
    <Binary>50000780</Binary>
  </EventData>
</Event>

Then I did a search on the EventID from above and found that there is an TechNet Article about Event ID 2284 which essentially states that FREB wasn't able to write to the logs.

FailedRequestTracing module failed to write buffered events to log file for the request that matched failure definition. No logs will be generated until this condition is corrected. The problem happened at least %1 times in the last %2 minutes. The data is the error.

Do you happen to have Failed Request Tracing enabled for your site? If not you might want to, apparently it's trying to write something every 1-5 minutes.