[英]Java web app on Heroku runs but doesn't answer
我在Heroku上部署了带有Spark框架的应用程序。 它是在Heroku上成功构建的,并且服务器已启动,但是当我尝试从服务器获取响应时,收到HTTP 503,并且在日志中出现以下H14错误:
2019-03-10T17:52:44.983359+00:00 heroku[servergossip.1]: Restarting
2019-03-10T17:52:45.299269+00:00 heroku[servergossip.1]: State changed from up to starting
2019-03-10T17:52:46.338372+00:00 heroku[servergossip.1]: Stopping all processes with SIGTERM
2019-03-10T17:52:46.000000+00:00 app[api]: Build succeeded
2019-03-10T17:52:46.769383+00:00 heroku[servergossip.1]: Process exited with status 143
2019-03-10T17:52:48.416183+00:00 heroku[servergossip.1]: Starting process with command `java $JAVA_OPTS -cp target/classes:target/dependency/* Main --port 37274`
2019-03-10T17:52:49.054556+00:00 heroku[servergossip.1]: State changed from starting to up
2019-03-10T17:52:51.513243+00:00 app[servergossip.1]: Picked up JAVA_TOOL_OPTIONS: -Xmx300m -Xss512k -XX:CICompilerCount=2 -Dfile.encoding=UTF-8
...
2019-03-10T17:52:52.672327+00:00 app[servergossip.1]: INFO: Started ServerConnector@3ee6bd4d{HTTP/1.1}{0.0.0.0:37274}
2019-03-10T17:53:09.078587+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=POST path="/bot" host=servergossip.herokuapp.com request_id=45e0301a-3c82-495e-830d-2db0b0d1f9ef fwd="87.240.189.18" dyno= connect= service= status=503 bytes= protocol=https
我的Procfile
文件:
servergossip: java $JAVA_OPTS -cp target/classes:target/dependency/* Main --port $PORT
Spark示例中的代码:
public class Main {
private static final Logger LOG = LoggerFactory.getLogger(Main.class);
public static void main(String[] args) {
port(getHerokuAssignedPort());
get("/bot", (req, res) -> {
return "hi";
});
}
static int getHerokuAssignedPort() {
ProcessBuilder processBuilder = new ProcessBuilder();
if (processBuilder.environment().get("PORT") != null) {
return Integer.parseInt(processBuilder.environment().get("PORT"));
}
return 4567;
}
}
我使用了诸如heroku:scale *someproject* = 1
,但没有任何反应。 所以有什么问题?
您的Procfile
当前定义了一个名为servergossip
的进程类型。 那没有多大意义。 将其更改为web
流程:
web: java $JAVA_OPTS -cp target/classes:target/dependency/* Main --port $PORT
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