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https://issues.apache.org/jira/browse/HDFS-16027?focusedWorklogId=597953&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-597953
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ASF GitHub Bot logged work on HDFS-16027:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 17/May/21 18:15
Start Date: 17/May/21 18:15
Worklog Time Spent: 10m
Work Description: jojochuang opened a new pull request #3018:
URL: https://github.com/apache/hadoop/pull/3018
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Issue Time Tracking
-------------------
Worklog Id: (was: 597953)
Time Spent: 0.5h (was: 20m)
> HDFS-15245 breaks source code compatibility between 3.3.0 and 3.3.1.
> ---------------------------------------------------------------------
>
> Key: HDFS-16027
> URL: https://issues.apache.org/jira/browse/HDFS-16027
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: journal-node, ui
> Affects Versions: 3.3.1
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Blocker
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Ok, this one is on me.
> JournalNodeMXBean is a Public, Evolving interface.
> But HDFS-15245 was cherrypicked to branch-3.3 which breaks source
> compatibility between 3.3.0 and 3.3.1 by adding the following three methods:
> {noformat}
> /**
> * Get host and port of JournalNode.
> *
> * @return colon separated host and port.
> */
> String getHostAndPort();
> /**
> * Get list of the clusters of JournalNode's journals
> * as one JournalNode may support multiple clusters.
> *
> * @return list of clusters.
> */
> List<String> getClusterIds();
> /**
> * Gets the version of Hadoop.
> *
> * @return the version of Hadoop.
> */
> String getVersion();
> {noformat}
> api checker error:
> {quote}
> Recompilation of a client program may be terminated with the message: a
> client class C is not abstract and does not override abstract method
> getClusterIds ( ) in JournalNodeMXBean.
> {quote}
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