CODEWITHSUNDEEP
javaherokuspark-java
L-Samuels
L-Samuels

Reputation: 2832

Java web application blank page on heroku but runs locally

My web app (spark java) runs fine locally but once deployed to Heroku gives me a blank page. 

    https://fathomless-garden-15009.herokuapp.com/fathomless-garden-15009

Here are the logs

2016-11-03T01:54:56.324006+00:00 heroku[web.1]: State changed from crashed to starting
2016-11-03T01:55:02.989594+00:00 heroku[web.1]: Starting process with command `   java -Dserver.port=34284 -jar build/libs/freebid-0.1.0-SNAPSHOT.jar`
2016-11-03T01:55:04.872996+00:00 app[web.1]: Setting JAVA_TOOL_OPTIONS     defaults based on dyno size. Custom settings will override them.
2016-11-03T01:55:04.876437+00:00 app[web.1]: Picked up JAVA_TOOL_OPTIONS: -Xmx350m -Xss512k -Dfile.encoding=UTF-8
2016-11-03T01:55:04.970619+00:00 app[web.1]: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
2016-11-03T01:55:04.970667+00:00 app[web.1]: SLF4J: Defaulting to no-operation (NOP) logger implementation
2016-11-03T01:55:04.970721+00:00 app[web.1]: SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
2016-11-03T01:55:05.604913+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.604 [main] BuildInfo - Git commit is null 
2016-11-03T01:55:05.604806+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.603 [main] BuildInfo - Built on null by null 
2016-11-03T01:55:05.605942+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.605 [main] PropertyResolver - properties file /credentials.properties is missing or invalid
2016-11-03T01:55:05.605760+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.605 [main] PropertyResolver - properties file /environment-ex.properties is missing or invalid
2016-11-03T01:55:05.606112+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.606 [main] PropertyResolver - properties file /credentials-ex.properties is missing or invalid
2016-11-03T01:55:05.606259+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.606 [main] PropertyResolver - resolved devMode in environment.properties as true
2016-11-03T01:55:05.614766+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.614 [main] PropertyResolver - resolved httpServer.port in environment.properties as 3016
2016-11-03T01:55:05.614940+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.614 [main] PropertyResolver - resolved template.engine in environment.properties as reloadable
2016-11-03T01:55:05.705113+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.704 [main] PropertyResolver - failed to resolve heap.analytics.id
2016-11-03T01:55:05.731095+00:00 app[web.1]: [INFO ] 2016-11-03 01:55:05.730 [main] ApiController - Loading ObjectMapper
2016-11-03T01:56:33.511375+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 90 seconds of launch
2016-11-03T01:56:33.511626+00:00 heroku[web.1]: Stopping process with SIGKILL
2016-11-03T01:56:33.669397+00:00 heroku[web.1]: State changed from starting to crashed
2016-11-03T01:56:33.648115+00:00 heroku[web.1]: Process exited with status 137

My Procfile

web: java -Dserver.port=$PORT -jar build/libs/freebid-0.1.0-SNAPSHOT.jar

In the logs this is looking like the culprit

Web process failed to bind to $PORT within 90 seconds of launch
2016-11-03T01:56:33.511626+00:00 heroku[web.1]: Stopping process with SIGKILL

but from other solutions on SO indicated i should add the following below to the procfile which i did;

-Dserver.port=$PORT

Im not sure whether this is the only problem but this would be a start.

I would really appreciate some pointers

Upvotes: 1

Views: 238

Answers (1)

codefinger
codefinger

Reputation: 10318

I don't know if Spark honors the -Dserver.port option. I've set the port explicitly in Java code:

port(Integer.valueOf(System.getenv("PORT")));

You can see the full example on Github.

You can test it locally by running heroku local web, and it should bind to port 5000. If it does not, then it won't work on Heroku.

Upvotes: 3

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