测试Eagle的自定义Application报错问题及解决办法

爱被打了一巴掌 2021-09-28 17:42 370阅读 0赞

# 错误1：安装EXAMPLE\_APPLICATION报错 #

{"success":false,"message":"Illegal Application Type: 
    EXAMPLE_APPLICATION","exception":"javax.ws.rs.WebApplicationException:
     java.lang.IllegalArgumentException: Illegal Application Type: EXAMPLE_APPLICATION

这个问题，用下面的方法解决：  
1、在eagle项目中的eagle-topology-assembly文件夹下，src/resources/services/org.apache.eagle.app.spi.ApplicationProvider 在该文件中添加自定义的Application的Provider类，例如

## Example
    org.apache.eagle.app.example.ExampleApplicationProvider

2、再次编译之后重新部署，在页面中就有了自定义的ExampleApplication

# 错误2：添加Example Application报错信息： #

Neither stream specific topic: dataSinkConfig.SAMPLE_STREAM_1.topic nor default shared topic: dataSinkConfig.topic found in config

这个问题，用下面的方法解决：  
1、修改org.apache.eagle.app.example.ExampleApplicationProvider.xml文件

<property>
                <name>dataSinkConfig.SAMPLE_STREAM_1.topic</name>
                <displayName>Destination(Kafka Topic) Of App Stream Data</displayName>
                <value>${siteId}_example_source_topic</value>
                <description>topic for kafka data sink</description>
                <required>true</required>
            </property>
    		<property>
                <name>dataSinkConfig.SAMPLE_STREAM_2.topic</name>
                <displayName>Destination(Kafka Topic) Of App Stream Data</displayName>
                <value>${siteId}_example_source_topic</value>
                <description>topic for kafka data sink</description>
                <required>true</required>
            </property>

2、报新错误

No configuration setting found for key 'dataSinkConfig.brokerList'

3、修改配置文件org.apache.eagle.app.example.ExampleApplicationProvider.xml

<property>
                <name>dataSinkConfig.brokerList</name>
                <displayName>Broker(Kafka) List Of Stream Data</displayName>
                <value>localhost:6667</value>
                <description>kafka broker list for stream data</description>
                <required>true</required>
            </property>

4、经过增加配置文件内容，上面的错误信息没有了，app也安装成功了，但是启动不了，也删除不掉，报错信息如下：

com.google.inject.ConfigurationException: Guice configuration errors:
    1) No implementation for org.apache.eagle.app.example.extensions.ExampleEntityService was bound.

1、上面出现的问题，通过查看代码，注释掉ExampleApplicationProvider类中的下面代码后解决：

//@Inject ExampleEntityService entityService;
    @Override
    public void init(ApplicationEntity applicationEntity) {
        this.application = applicationEntity;
        //entityService.getEntities();
    }

2、通过修改后，可以卸载了，但是启动还是报错：

ERROR [2017-09-07 00:58:45,044] org.apache.eagle.app.service.impl.ApplicationManagementServiceImpl: Failed to start app EXAMPLE_APPLICATION_TEST_SITE
    ERROR [2017-09-07 00:58:45,044] org.apache.eagle.common.rest.RESTResponse: Exception: No configuration setting found for key 'spoutNum'

3、通过修改配置文件org.apache.eagle.app.example.ExampleApplicationProvider.xml后解决，而且Application启动也成功了

<property>
                <name>spoutNum</name>
                <displayName>Topology Spout Tasks</displayName>
                <value>2</value>
                <description>number of spout tasks</description>
            </property>