[GitHub] [orc] dongjoon-hyun commented on a change in pull request #607: ORC-603. Upgrade `tools` to use Hadoop 3.2.2

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dongjoon-hyun commented on a change in pull request #607:
URL: https://github.com/apache/orc/pull/607#discussion_r555923333



##########
File path: java/tools/pom.xml
##########
@@ -57,13 +57,13 @@
     <dependency>
       <groupId>org.apache.hadoop</groupId>
       <artifactId>hadoop-common</artifactId>
-      <version>${hadoop.version}</version>
+      <version>${tools.hadoop.version}</version>
       <scope>compile</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>
-      <artifactId>hadoop-hdfs</artifactId>
-      <version>${hadoop.version}</version>
+      <artifactId>hadoop-hdfs-client</artifactId>

Review comment:
       Do you think it's safe? Of course, we should bump `hadoop.version` later, but I don't think that is trivial like this, @pgaref .
   
   Hadoop 3 has many breaking changes like https://github.com/apache/orc/pull/608 is also a behavior change from Hadoop layer. This PR is designed by @omalley 's decision. He explicitly mentioned `tools` jar's Hadoop version, not the all Hadoop version.
   > We should upgrade the version of Hadoop used for the tools jar to the higher 2.7.7 from 2.7.3.
   
   I believe we can upgrade `tools` first and do the main later with more testing.




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