![]() Some days even the AGOL hosted feature layer tables are data error after data error yet the AGOL health status is all good. I am a pretty novice programmer and am happy to have the script working as it should with the tasks/metrics needed that I am completely annoyed now to be getting server connection errors. At the moment the script I am using does not have the logic to trigger it to retry the loops. I am at the office and have a good wired network connection. At the moment between yesterday and today I have not even been able to make it thru 275 records in the hosted feature layer to update without getting these timeout errors to the point I've gotten 5 in the last hour. When the script successfully runs it will run for an hour. The python script is using the update cursor to populate records of data collected in the Field Maps app. Thanks for submitting the BUGS regarding the 50x errors, I am getting SO very many of these with the post-survey script I am trying to run to the point its beyond frustrating. I'm just wondering if anyone else has experience similar when applying regular updates to an AGOL hosted feature service? However, we are still seeing some instances of error 504. We have put in place some work arounds, such as making a number of attempts at the request when it fails and limiting the number of features updated per request. It is totally intermittent, so during one run one request might fail, but then the next will succeed. 4500 features, but occasionally occurs with update requests to other layers with fewer features (approx. The error seems to occur most frequently when updating a specific layer (using updateFeatures), which has approx. I've looked into error 504 and this suggests a timeout is occuring between internal servers in ArcGIS Online. The code is working fine generally and has been for some months, but we are increasingly seeing intermittent errors in the log for our process that are related to http requests, especially Error 504 (Gateway Timeout). addFeatures, updateFeatures, deleteFeatures). The process is written in python and the code is sending http requests to the layer's REST endpoint (i.e. ![]() We have a process that applies changes to the hosted layers based on changes in their database, including adds, updates and deletes. Internet Engineering Task Force.We have a customer for whom we have published some data as an ArcGIS online hosted feature service. Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content. Read up on another common problem, Error 431, on our blog. Dump the data and try again.Įrror 502 is just one type of HTTP error your website might generate. Your browser cache can interfere with smooth surfing. Simple traffic problems may fade if you wait a moment and try the site again.Ĭlear. But this comes with major security risks. You could scale back firewalls and otherwise ensure all traffic reaches you. ![]() Use a ping or traceroute to determine if your server is even accessible.īalancing. Are you dealing with a DNS problem? Or are you overwhelmed by traffic? You'll know what vendor to call next. Firewall setup problems can block proxy communication.Īs a developer, you can solve these issues by:Īssessing. Too many visitors can overwhelm a server and make requests impossible to resolve.Ĭonnectivity. If that system goes wrong (as it would if you switched to a new hosting service), a bad gateway warning appears. Computers do a quick lookup to resolve a numeric IP to a standard format. Fixing the problem quickly should be your top priority.ĭomain names. And as a developer, mistakes like this can shift your traffic and impair your reach. No one wants to deal with error codes while surfing the web. One simple number tells you a great deal about why the page won’t load. The numeric language may seem confusing, but it’s actually quite efficient. Mistake: The proxy got some kind of invalid response from the server. Proxies: If you get a bad gateway note, you're working with a gateway or proxy server.Ĭonnection: The proxy tried to work with the origin server. The 502 status code, per IETF, indicates a few things: In the HTTP system, problems have numbers. The hypertext transfer protocol (HTTP), a set of rules that regulate the web released by the Internet Engineering Task Force (IETF), governs every internet transaction. ![]() Let's dig deeper into the 502 bad gateway meaning, and we'll offer five solutions you can try to fix the problem. Something about that process went wrong, and the message indicates the problem. In essence, you've connected with some kind of interim device (like an edge server) that should fetch all of the bits you need to load the page. You attempt to load a website, and this message flashes on your screen: 502 bad gateway.Ī 502 bad gateway message indicates that one server got an invalid response from another.
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