在eclipse中调试storm-starter程序
1）下载twitter4j ：twitter4j-2.2.6.zip（http://pan.baidu.com/s/1bzSO3），并解压unzip twitter4j-2.2.6.zip
下载storm-starter-master.zip（
git clone git://github.com/nathanmarz/storm-starter.git
）
2）使用eclipse建立java project。追加twitter4j和storm的jar文件：
File-> New -> Java Project ->起项目名-> Next -> Libraries -> add External JARs...->追加twitter4j和storm的jar文件（twitter4j-{version}/lib/*.jar，storm-{version}/lib/*.jar,storm-{version}/storm-{version}.jar
-> Finsh
或者可以在建java 项目完成后添加twitter4j和storm的jar文件:
项目名-> 右键->properties->java build path->Libraries -> add External JARs->追加twitter4j和storm的jar文件
3）导入storm-starter
File -> Import -> General -> File System -> Next -> Browse(From directory) -> storm-starter/src/jvm/storm -> Browse(Info floder) -> 项目名/src -> OK -> “storm” 和 “Create top-level folder”前打勾 -> Finish
4）把配置文件storm.yaml加载到项目的src下。
完成后eclipse中项目显示如下：
这样就可以点Run 运行 storm.starter.ExclamationTopology,结果如下：
但运行storm.starter.WordCountTopology程序会报如下错误：
2128 [Thread-22] ERROR backtype.storm.util - Async loop died!
java.lang.RuntimeException : Error when launching multilang subprocess
at backtype.storm.task.ShellBolt.prepare( ShellBolt.java:82)
at backtype.storm.daemon.executor$fn__4050$fn__4059.invoke(executor.clj:610)
at backtype.storm.util$async_loop$fn__465.invoke(util.clj:375)
at clojure.lang.AFn.run( AFn.java:24)
at java.lang.Thread.run( Thread.java:662)
Caused by: java.io.IOException: Cannot run program "python" (in directory "/tmp/add60cdb-20da-4f1e-a2ae-c14e0eafa200/supervisor/stormdist/word-count-1-1382945411/resources"): java.io.IOException: error=2, No such file or directory
at java.lang.ProcessBuilder.start( ProcessBuilder.java:460)
at backtype.storm.utils.ShellProcess.launch( ShellProcess.java:31)
at backtype.storm.task.ShellBolt.prepare( ShellBolt.java:79)
... 4 more
Caused by: java.io.IOException: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.( UNIXProcess.java:148)
at java.lang.ProcessImpl.start( ProcessImpl.java:65)
at java.lang.ProcessBuilder.start( ProcessBuilder.java:453)
... 6 more
2130 [Thread-22] ERROR backtype.storm.daemon.executor -
java.lang.RuntimeException : Error when launching multilang subprocess
at backtype.storm.task.ShellBolt.prepare( ShellBolt.java:82)
at backtype.storm.daemon.executor$fn__4050$fn__4059.invoke(executor.clj:610)
at backtype.storm.util$async_loop$fn__465.invoke(util.clj:375)
at clojure.lang.AFn.run( AFn.java:24)
at java.lang.Thread.run( Thread.java:662)
Caused by: java.io.IOException: Cannot run program "python" (in directory "/tmp/add60cdb-20da-4f1e-a2ae-c14e0eafa200/supervisor/stormdist/word-count-1-1382945411/resources"): java.io.IOException: error=2, No such file or directory
at java.lang.ProcessBuilder.start( ProcessBuilder.java:460)
at backtype.storm.utils.ShellProcess.launch( ShellProcess.java:31)
at backtype.storm.task.ShellBolt.prepare( ShellBolt.java:79)
... 4 more
Caused by: java.io.IOException: java.io.IOException: error=2, No such file or directory
at java.lang.UNIXProcess.( UNIXProcess.java:148)
at java.lang.ProcessImpl.start( ProcessImpl.java:65)
at java.lang.ProcessBuilder.start( ProcessBuilder.java:453)
... 6 more
这是因为wordcount程序需要用到python脚本，解决方法如下
追加源文件storm-start/multilang/resources（python 文件word count用），右击src -> Import -> General -> File System -> Next -> Browse(From directory) -> storm-starter/multilang/resources -> Browse(Info floder) -> 项目名-> OK -> “resources”和“Create top-level folder”前打勾 -> Finish，右击resources->Build Path
->Include
完成后eclipse中项目显示如下：
点Run执行storm.starter.WordCountTopology程序结果如下：
