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Posted to issues@hbase.apache.org by GitBox <gi...@apache.org> on 2019/09/17 09:43:11 UTC
[GitHub] [hbase] liujiayi771 commented on a change in pull request #630:
HBASE-23030 Update completebulkload hadoop jar usage in related doc
liujiayi771 commented on a change in pull request #630: HBASE-23030 Update completebulkload hadoop jar usage in related doc
URL: https://github.com/apache/hbase/pull/630#discussion_r325075142
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File path: src/main/asciidoc/_chapters/architecture.adoc
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@@ -2462,7 +2462,7 @@ This process is not optimally efficient, so users should take care to minimize t
[[arch.bulk.load.complete.help]]
[source,bash]
----
-$ hadoop jar hbase-server-VERSION.jar completebulkload [-c /path/to/hbase/config/hbase-site.xml] /user/todd/myoutput mytable
+$ hadoop jar hbase-mapreduce-VERSION.jar completebulkload [-c /path/to/hbase/config/hbase-site.xml] /user/todd/myoutput mytable
Review comment:
HBASE-18698 moves Driver to be the main-class in hbase-mapreduce jar rather than hbase-server jar. hbase-server jar has no Main-Class in MANIFEST.MF, so when I use hadoop jar hbase-server-VERSION.jar completebulkload, hadoop cannot find the main class in hbase-server jar, and throws exception like this:
```
Exception in thread "main" java.lang.ClassNotFoundException: completebulkload
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.hadoop.util.RunJar.run(RunJar.java:311)
at org.apache.hadoop.util.RunJar.main(RunJar.java:232)
```
According to HBASE-18698, it adds `Main-Class: org/apache/hadoop/hbase/mapreduce/Driver` in hbase-mapreduce jar, so the correct way to use completebulkload is hadoop jar hbase-mapreduce-VERSION.jar completebulkload.
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