强制 Storm 使用 fat jar 依赖而不是类路径定义的依赖

Question

我如何告诉 Storm 使用 fat jar 中包含的依赖项而不是 Storm 类路径中的依赖项？

这里是一些背景/细节：

• joda-time 是有问题的依赖项，storm classpath 中包含 2.0，fat jar 中包含 2.7。
• 使用mvn compile exec:java -Dstorm.topology=ClassName 运行拓扑似乎使用2.7 就好了。
• 使用storm jar target/filename-jar-with-dependencies.jar ClassName 提交拓扑似乎使用2.0 而不是2.7。
• filename-jar-with-dependencies.jar 是使用 mvn package 创建的：
  • joda-time 2.7 在依赖部分下的pom.xml 中
  • 当我执行jar tvf target/filename-jar-with-dependencies.jar | grep joda 时，找到了 2.7 的正确 joda 时间戳

我什至注意到这一点的原因是我在通过storm 命令提交拓扑时看到以下警告/错误：

WARN  com.amazonaws.services.s3.internal.S3MetadataResponseHandler - Unable to parse last modified date: Mon, 25 May 2015 13:23:29 GMT
java.lang.IllegalStateException: Joda-time 2.2 or later version is required, but found version: 2.0
    at com.amazonaws.util.DateUtils.handleException(DateUtils.java:156) ~[filename-jar-with-dependencies.jar:na]
    at com.amazonaws.util.DateUtils.parseRFC822Date(DateUtils.java:204) ~[filename-jar-with-dependencies.jar:na]
    at com.amazonaws.services.s3.internal.ServiceUtils.parseRfc822Date(ServiceUtils.java:78) ~[filename-jar-with-dependencies.jar:na]
    at com.amazonaws.services.s3.internal.AbstractS3ResponseHandler.populateObjectMetadata(AbstractS3ResponseHandler.java:115) ~[filename-jar-with-dependencies.jar:na]
    at com.amazonaws.services.s3.internal.S3ObjectResponseHandler.handle(S3ObjectResponseHandler.java:52) [filename-jar-with-dependencies.jar:na]
    at com.amazonaws.services.s3.internal.S3ObjectResponseHandler.handle(S3ObjectResponseHandler.java:30) [filename-jar-with-dependencies.jar:na]
    at com.amazonaws.http.AmazonHttpClient.handleResponse(AmazonHttpClient.java:1050) [filename-jar-with-dependencies.jar:na]
    at com.amazonaws.http.AmazonHttpClient.executeOneRequest(AmazonHttpClient.java:724) [filename-jar-with-dependencies.jar:na]
    at com.amazonaws.http.AmazonHttpClient.executeHelper(AmazonHttpClient.java:467) [filename-jar-with-dependencies.jar:na]
    at com.amazonaws.http.AmazonHttpClient.execute(AmazonHttpClient.java:302) [filename-jar-with-dependencies.jar:na]
    at com.amazonaws.services.s3.AmazonS3Client.invoke(AmazonS3Client.java:3672) [filename-jar-with-dependencies.jar:na]
    at com.amazonaws.services.s3.AmazonS3Client.getObject(AmazonS3Client.java:1160) [filename-jar-with-dependencies.jar:na]
Caused by: java.lang.IllegalArgumentException: Invalid format: "Mon, 25 May 2015 13:23:29 GMT" is malformed at "GMT"
    at org.joda.time.format.DateTimeFormatter.parseMillis(DateTimeFormatter.java:747) ~[joda-time-2.0.jar:2.0]
    at com.amazonaws.util.DateUtils.parseRFC822Date(DateUtils.java:202) ~[filename-jar-with-dependencies.jar:na]
    ... 15 common frames omitted

Answer 1

我在阅读 this post 后发现的一种解决方法是用较新的版本替换 Storm 的 /lib 目录中的库（在我的情况下为 joda-time），因为该目录中的所有 .jar 文件都显示在 storm classpath默认情况下。

我希望有一个更好的答案，以防两个版本的库因某种原因需要共存。

Answer 2

在我使用 Maven 3.3.3 和“Wildfly 9.0.0-RC2”的情况下，我需要添加 pom.xml

<dependency>
   <groupId>joda-time</groupId>
   <artifactId>joda-time</artifactId>
   <version>2.8.1</version>
</dependency>

这解决了我的问题。

如果您查看“aws-sdk-java”的源代码，您将看到以下验证。 https://github.com/aws/aws-sdk-java/blob/1.10.1/aws-java-sdk-core/src/main/java/com/amazonaws/util/DateUtils.java

/**
 * Returns the original runtime exception iff the joda-time being used
 * at runtime behaves as expected.
 *
 * @throws IllegalStateException if the joda-time being used at runtime
 * doens't appear to be of the right version.
 */
private static <E extends RuntimeException> E handleException(E ex) {
    if (JodaTime.hasExpectedBehavior())
        return ex;
    throw new IllegalStateException("Joda-time 2.2 or later version is required, but found version: " + JodaTime.getVersion(), ex);
}