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afHttpClientExt

Axon functions for making HTTP requests to REST APIs
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Connecting to isolated SkySpark node
Gideon NoyaWed 3rd Dec

Hi, I get a "NodeIsolatedErr" when I try to do a GET request using afHttpGet. I thought it wouldn't be dependent on the cluster connection to do a GET request as it using the API connection of SkySpark right? Is there a way to sent a request in the way you would when requesting by using Python for example where you don't need a cluster connection?

isolated cluster traceback:

axon::ThrowErr: {err, dis:ver:"3.0" errType:"arcbeam::RemoteErr" err errTrace:"arcbeam::RemoteErr: arcbeam::NodeIsolatedErr\n=== Remote Trace ===\narcbeam::NodeIsolatedErr\n arcbeam::ChanStream.openServer (ChanStream.fan:131)\n arcbeam::Hub.onGet (Hub.fan:229)\n web::Weblet\$.onService (Weblet.fan:59)\n web::WebMod.onService (WebMod.fan:15)\n clusterMod::ClusterWeb.onService (StdClusterMod.fan:154)\n skyarcd::HttpRootMod.onService (HttpMod.fan:132)\n wisp::WispActor.process (WispActor.fan:81)\n wisp::WispActor.receive (WispActor.fan:38)\n concurrent::Actor._dispatch (Actor.java:293)\n concurrent::Actor._work (Actor.java:248)\n concurrent::ThreadPool\$Worker.run (ThreadPool.java:273)\n\n=== Fantom Trace ===\narcbeam::RemoteErr: arcbeam::NodeIsolatedErr\n arcbeam::RemoteErr.makeFrame (Errs.fan:109)\n arcbeam::Frame.receive (Frame.fan:277)\n arcbeam::ChanStream.openHere (ChanStream.fan:46)\n arcbeam::ChanStream.openClient (ChanStream.fan:27)\n arcbeam::Chan.openStream (Chan.fan:87)\n arcbeam::HttpChan.routeAsStream (HttpChan.fan:63)\n arcbeam::HttpChan.route (HttpChan.fan:47)\n clusterMod::StdClusterMod.route (StdClusterMod.fan:97)\n skyarcd::ApiWebMod.onRemote (ApiMod.fan:211)\n skyarcd::ApiWebMod.onService (ApiMod.fan:114)\n skyarcd::HttpRootMod.onService (HttpMod.fan:132)\n wisp::WispActor.process (WispActor.fan:81)\n wisp::WispActor.receive (WispActor.fan:38)\n concurrent::Actor._dispatch (Actor.java:293)\n concurrent::Actor._work (Actor.java:248)\n concurrent::ThreadPool\$Worker.run (ThreadPool.java:273)\n" dis:"arcbeam::RemoteErr: arcbeam::NodeIsolatedErr"

No cluster connection traceback:

axon::ThrowErr: {err, dis:ver:"3.0" errType:"arcbeam::WrongHubInstanceErr" err errTrace:"arcbeam::WrongHubInstanceErr\n arcbeam::Hub.checkMyNode (Hub.fan:199)\n arcbeam::Chan.openStream (Chan.fan:86)\n arcbeam::HttpChan.routeAsStream (HttpChan.fan:63)\n arcbeam::HttpChan.route (HttpChan.fan:47)\n clusterMod::StdClusterMod.route (StdClusterMod.fan:97)\n skyarcd::ApiWebMod.onRemote (ApiMod.fan:211)\n skyarcd::ApiWebMod.onService (ApiMod.fan:114)\n skyarcd::HttpRootMod.onService (HttpMod.fan:132)\n wisp::WispActor.process (WispActor.fan:81)\n wisp::WispActor.receive (WispActor.fan:38)\n concurrent::Actor._dispatch (Actor.java:293)\n concurrent::Actor._work (Actor.java:248)\n concurrent::ThreadPool\$Worker.run (ThreadPool.java:273)\n" dis:"arcbeam::WrongHubInstanceErr"
axon::ThrowErr: {err, dis:ver:"3.0" errType:"arcbeam::WrongHubInstanceErr" err errTrace:"arcbeam::WrongHubInstanceErr\n  arcbeam::Hub.checkMyNode (Hub.fan:199)\n  arcbeam::Chan.openStream (Chan.fan:86)\n  arcbeam::HttpChan.routeAsStream (HttpChan.fan:63)\n  arcbeam::HttpChan.route (HttpChan.fan:47)\n  clusterMod::StdClusterMod.route (StdClusterMod.fan:97)\n  skyarcd::ApiWebMod.onRemote (ApiMod.fan:211)\n  skyarcd::ApiWebMod.onService (ApiMod.fan:114)\n  skyarcd::HttpRootMod.onService (HttpMod.fan:132)\n  wisp::WispActor.process (WispActor.fan:81)\n  wisp::WispActor.receive (WispActor.fan:38)\n  concurrent::Actor._dispatch (Actor.java:293)\n  concurrent::Actor._work (Actor.java:248)\n  concurrent::ThreadPool\$Worker.run (ThreadPool.java:273)\n" dis:"arcbeam::WrongHubInstanceErr"
empty
Henry ChatwinWed 3rd Dec

Hi Gideon,

I'm afraid I've not run into this issue myself, and I'm struggling to reproduce the isolated error on my end.

What url on the SkySpark instance are you trying to access? As a test, are you able to make a request to /pod/sys/sys.js? This should return the javascript from the sys pod as it's publicly available.

Gideon NoyaWed 10th Dec

I will try this today but I realize I haven't explained the setup. So I have two SkySpark instances where I am using the afHttpGet in one of the SkySpark nodes that is connecting with a SkySpark isolated cluster connection to the main SkySpark instance. So actually the node does not have access to the main SkySpark instance because the connection is set on isolated but I do want to check if the main SkySpark instance is online. That is why I want to check this through API without using the cluster connection (as I can't because it is isolated). I would expect afHttpGet to just go around this cluster connection by using an API connection but it does give me NodeIsolatedErr. I hope this clarifies the situation

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