[HADOOP-15404] Remove multibyte characters in DataNodeUsageReportUtil

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.2.0
• Target Version/s: 3.2.0
• Hadoop Flags: Reviewed
• Assignee: Takanobu Asanuma
• Reporter: Takanobu Asanuma
• Created: 23/Apr/18 05:18
• Updated: 26/Apr/18 21:58
• Resolved: 25/Apr/18 08:04

Description

DataNodeUsageReportUtil created by HDFS-13055 includes multibyte characters. We need to remove them for building it with java9.

mvn javadoc:javadoc --projects hadoop-hdfs-project/hadoop-hdfs-client
...
[ERROR] /hadoop/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/server/protocol/DataNodeUsageReportUtil.java:26: error: unmappable character (0xE2) for encoding US-ASCII
[ERROR]  * the delta between??????current DataNode usage metrics and the usage metrics

Issue Links

• is caused by: HDFS-13055 Aggregate usage statistics from datanodes