在Heroku上运行我的应用程序时,为什么会出现启动超时错误(错误R10)?

时间:2019-02-12 19:44:47

标签: java heroku timeout

我有一个在Heroku上部署的Java应用程序。部署就像超级按钮一样工作,没有错误或警告,该应用程序开始运行。但是,一段时间后,出现以下错误:

  

错误R10(引导超时)-> Web进程在启动后90秒内未能绑定到$ PORT

在本地运行我的应用程序时没有任何错误。

FYI::此应用会定期检查postgresql数据库中的表是否进行了更改,如果有更改,则更新同一数据库中的另一个表(据我所知)确实与我的问题有关,但您可以继续。)

这是日志:

2019-02-12T19:37:15.444651+00:00 heroku[web.1]: Starting process with command `java $JAVA_OPTS -Dserver.port=24637 -cp target/classes:target/dependency/* com.name.numbersbackend.Main`
2019-02-12T19:37:18.657701+00:00 app[web.1]: Setting JAVA_TOOL_OPTIONS defaults based on dyno size. Custom settings will override them.
2019-02-12T19:37:18.660650+00:00 app[web.1]: Picked up JAVA_TOOL_OPTIONS: -Xmx300m -Xss512k -XX:CICompilerCount=2 -Dfile.encoding=UTF-8 
2019-02-12T19:37:35.580329+00:00 app[web.1]: .
2019-02-12T19:37:51.105807+00:00 app[web.1]: .
2019-02-12T19:38:06.683974+00:00 app[web.1]: .
2019-02-12T19:38:22.198062+00:00 app[web.1]: .
2019-02-12T19:38:37.792613+00:00 app[web.1]: .
2019-02-12T19:38:45.489753+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 90 seconds of launch
2019-02-12T19:38:45.489753+00:00 heroku[web.1]: Stopping process with SIGKILL
2019-02-12T19:38:45.663859+00:00 heroku[web.1]: Process exited with status 137
2019-02-12T19:38:45.682773+00:00 heroku[web.1]: State changed from starting to crashed
2019-02-12T19:38:45.766843+00:00 heroku[web.1]: State changed from crashed to starting
2019-02-12T19:38:48.871480+00:00 heroku[web.1]: Starting process with command `java $JAVA_OPTS -Dserver.port=39010 -cp target/classes:target/dependency/* com.name.numbersbackend.Main`
2019-02-12T19:38:51.074950+00:00 app[web.1]: Setting JAVA_TOOL_OPTIONS defaults based on dyno size. Custom settings will override them.
2019-02-12T19:38:51.077995+00:00 app[web.1]: Picked up JAVA_TOOL_OPTIONS: -Xmx300m -Xss512k -XX:CICompilerCount=2 -Dfile.encoding=UTF-8 
2019-02-12T19:39:07.724633+00:00 app[web.1]: .
2019-02-12T19:39:23.250203+00:00 app[web.1]: .
2019-02-12T19:39:38.760492+00:00 app[web.1]: .
2019-02-12T19:39:54.313859+00:00 app[web.1]: .
2019-02-12T19:40:09.881207+00:00 app[web.1]: .
2019-02-12T19:40:19.374407+00:00 heroku[web.1]: State changed from starting to crashed
2019-02-12T19:40:19.187236+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to bind to $PORT within 90 seconds of launch
2019-02-12T19:40:19.187351+00:00 heroku[web.1]: Stopping process with SIGKILL
2019-02-12T19:40:19.354497+00:00 heroku[web.1]: Process exited with status 137

FYI:2019-02-12T19:39:38.760492+00:00 app[web.1]: .行(以及类似的行)包含我应用程序的一些临时输出,以表明它实际上在做某事。对于每行,该程序都会检查表是否存在更改,如果有更改,是否需要采取措施(如果需要采取措施,则应用程序的输出会更有意义)。

如您所见,该应用程序可以正常启动,运行一段时间,然后崩溃甚至重启。但是,有时它会完全停止工作。

这是我的pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.name</groupId>
    <artifactId>com.name.app.backend</artifactId>
    <version>1.0</version>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>3.0.1</version>
                <executions>
                    <execution>
                        <id>copy-dependencies</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <repositories>
        <repository>
            <id>jitpack.io</id>
            <url>https://jitpack.io</url>
        </repository>
    </repositories>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.json/json -->
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20180813</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.postgresql/postgresql -->
        <dependency>
            <groupId>org.postgresql</groupId>
            <artifactId>postgresql</artifactId>
            <version>42.2.5</version>
        </dependency>
        <dependency>
            <groupId>com.github.myname</groupId>
            <artifactId>app-lib</artifactId>
            <version>master-SNAPSHOT</version>
        </dependency>
    </dependencies>
</project>

...和我的Procfile:

web: java $JAVA_OPTS -Dserver.port=$PORT -cp target/classes:target/dependency/* nl.limakajo.numbersbackend.Main

经过大量Google搜索和浏览后,我没有找到解决方案。

1 个答案:

答案 0 :(得分:1)

听起来您希望此过程在后台运行而不处理Web请求。在这种情况下,您不想在web:中使用Procfile。在Heroku上,web进程受到特殊对待:它被分配了一个PORT env var,必须在启动后的90秒钟内绑定到该变量。

我建议将您的Procfile更改为:

worker: java $JAVA_OPTS -cp target/classes:target/dependency/* nl.limakajo.numbersbackend.Main