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snowplow / snowplow-scala-tracker

Snowplow event tracker for Scala. Add analytics to your Scala, Akka and Play apps and servers
http://snowplowanalytics.com
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Handle incorrect responses #24

Closed chuwy closed 8 years ago

chuwy commented 8 years ago

I used webserver sending incorrect response:

#!/usr/bin/enve python3
class ServerHandler(server.SimpleHTTPRequestHandler):
    def do_GET(self):
        self.log_request(200)
        self.send_response_only(200, None)
#        self.end_headers()   # absence of this line makes response incorrect
        self.wfile.write(bytearray("r", 'utf-8'))

With this webserver app with scala tracker fall into infinite loop with sending event and getting invalid response.

[WARN] [10/07/2015 17:29:24.805] [snowplow-scala-tracker-akka.actor.default-dispatcher-165] [akka://snowplow-scala-tracker/user/IO-HTTP/host-connector-0/4] Connection attempt to localhost:8000 failed in response to GET request to /i?e=pv&eid=fec441e0-4457-4359-9b3a-abc61f837d5b&url=/&refr=http://127.0.0.1:8888/app/play-scala/&aid=test-play-app&tna=scala-tracker&stm=1444228164803&tv=scala-0.2.0&p=srv&dtm=1444227351850 with 5 retries left, retrying...
[WARN] [10/07/2015 17:29:24.810] [snowplow-scala-tracker-akka.actor.default-dispatcher-159] [akka://snowplow-scala-tracker/user/IO-HTTP/host-connector-0/1] Connection attempt to localhost:8000 failed in response to GET request to /i?e=pv&eid=fec441e0-4457-4359-9b3a-abc61f837d5b&url=/&refr=http://127.0.0.1:8888/app/play-scala/&aid=test-play-app&tna=scala-tracker&stm=1444228164803&tv=scala-0.2.0&p=srv&dtm=1444227351850 with 4 retries left, retrying...
[WARN] [10/07/2015 17:29:24.813] [snowplow-scala-tracker-akka.actor.default-dispatcher-160] [akka://snowplow-scala-tracker/user/IO-HTTP/host-connector-0/4] Connection attempt to localhost:8000 failed in response to GET request to /i?e=pv&eid=fec441e0-4457-4359-9b3a-abc61f837d5b&url=/&refr=http://127.0.0.1:8888/app/play-scala/&aid=test-play-app&tna=scala-tracker&stm=1444228164803&tv=scala-0.2.0&p=srv&dtm=1444227351850 with 3 retries left, retrying...
[WARN] [10/07/2015 17:29:24.815] [snowplow-scala-tracker-akka.actor.default-dispatcher-169] [akka://snowplow-scala-tracker/user/IO-HTTP/host-connector-0/1] Connection attempt to localhost:8000 failed in response to GET request to /i?e=pv&eid=fec441e0-4457-4359-9b3a-abc61f837d5b&url=/&refr=http://127.0.0.1:8888/app/play-scala/&aid=test-play-app&tna=scala-tracker&stm=1444228164803&tv=scala-0.2.0&p=srv&dtm=1444227351850 with 2 retries left, retrying...
[WARN] [10/07/2015 17:29:24.819] [snowplow-scala-tracker-akka.actor.default-dispatcher-141] [akka://snowplow-scala-tracker/user/IO-HTTP/host-connector-0/4] Connection attempt to localhost:8000 failed in response to GET request to /i?e=pv&eid=fec441e0-4457-4359-9b3a-abc61f837d5b&url=/&refr=http://127.0.0.1:8888/app/play-scala/&aid=test-play-app&tna=scala-tracker&stm=1444228164803&tv=scala-0.2.0&p=srv&dtm=1444227351850 with 1 retries left, retrying...
[WARN] [10/07/2015 17:29:24.820] [snowplow-scala-tracker-akka.actor.default-dispatcher-164] [akka://snowplow-scala-tracker/user/IO-HTTP/host-connector-0/1] Connection attempt to localhost:8000 failed in response to GET request to /i?e=pv&eid=fec441e0-4457-4359-9b3a-abc61f837d5b&url=/&refr=http://127.0.0.1:8888/app/play-scala/&aid=test-play-app&tna=scala-tracker&stm=1444228164803&tv=scala-0.2.0&p=srv&dtm=1444227351850 with no retries left, dispatching error...
...
alexanderdean commented 8 years ago

Is that an infinite loop? It looks like it throws an error after 5 retries...

chuwy commented 8 years ago

This output is endless.

alexanderdean commented 8 years ago

Scheduling for 0.2.0 then...