[HDFS-9886] Configuration properties for hedged read is broken

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Akira Ajisaka
• Reporter: Akira Ajisaka
• Created: 02/Mar/16 08:54
• Updated: 30/Aug/16 01:18
• Resolved: 02/Mar/16 18:28

Description

HdfsClientConfigKeys.java

  /** dfs.client.hedged.read configuration properties */
  interface HedgedRead {
    String  THRESHOLD_MILLIS_KEY = PREFIX + "threshold.millis";
    long    THRESHOLD_MILLIS_DEFAULT = 500;
    String  THREADPOOL_SIZE_KEY = PREFIX + "threadpool.size";
    int     THREADPOOL_SIZE_DEFAULT = 0;
  }

PREFIX is not defined in the interface, so "dfs.client" is used as PREFIX. Therefore, the properties are "dfs.client.threshold.millis" and "dfs.client.threadpool.size". They should be "dfs.client.hedged.read.threshold.millis" and "dfs.client.hedged.read.threadpool.size".

Issue Links

• is broken by: HDFS-8082 Separate the client read conf from DFSConfigKeys