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https://issues.apache.org/jira/browse/HADOOP-7738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13189376#comment-13189376
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Thomas Weise commented on HADOOP-7738:
--------------------------------------
For HCatalog, following are the differences beyond recompile:
{code}
diff shims/src/23/java/org/apache/hcatalog/shims/HCatHadoopShims23.java
shims/src/20S/java/org/apache/hcatalog/shims/HCatHadoopShims20S.java
25,26d24
< import org.apache.hadoop.mapreduce.task.JobContextImpl;
< import org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl;
28c26
< public class HCatHadoopShims23 implements HCatHadoopShims {
---
> public class HCatHadoopShims20S implements HCatHadoopShims {
33,34c31,32
< return new TaskAttemptContextImpl(conf, taskId);
< }
---
> return new TaskAttemptContext(conf, taskId);
> }
36c34
< @Override
---
> @Override
39,40c37
< JobContext newContext = new JobContextImpl(conf, jobId);
< return newContext;
---
> return new JobContext(conf, jobId);
42d38
<
{code}
> Document incompatible API changes between 0.20.20x and 0.23.0 release
> ---------------------------------------------------------------------
>
> Key: HADOOP-7738
> URL: https://issues.apache.org/jira/browse/HADOOP-7738
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Tom White
> Assignee: Tom White
> Priority: Blocker
> Fix For: 0.23.1
>
> Attachments: apicheck-hadoop-0.20.204.0-0.24.0-SNAPSHOT.txt
>
>
> 0.20.20x to 0.23.0 will be a common upgrade path, so we should document any
> incompatible API changes that will affect users.
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