[ https://issues.apache.org/jira/browse/HDFS-5781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jing Zhao updated HDFS-5781: ---------------------------- Attachment: HDFS-5781.000.patch > Use a map to record the mapping between FSEditLogOpCode and the corresponding > byte value > ---------------------------------------------------------------------------------------- > > Key: HDFS-5781 > URL: https://issues.apache.org/jira/browse/HDFS-5781 > Project: Hadoop HDFS > Issue Type: Improvement > Components: namenode > Affects Versions: 2.4.0 > Reporter: Jing Zhao > Assignee: Jing Zhao > Attachments: HDFS-5781.000.patch > > > HDFS-5674 uses Enum.values and enum.ordinal to identify an editlog op for a > given byte value. While improving the efficiency, it may cause issue. E.g., > when several new editlog ops are added to trunk around the same time (for > several different new features), it is hard to backport the editlog ops with > larger byte values to branch-2 before those with smaller values, since there > will be gaps in the byte values of the enum. > This jira plans to still use a map to record the mapping between editlog ops > and their byte values. -- This message was sent by Atlassian JIRA (v6.1.5#6160)