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From madrob <...@git.apache.org>
Subject [GitHub] accumulo pull request #107: ACCUMULO-4157 Bug fix for removing WALs to quick...
Date Fri, 03 Jun 2016 04:01:10 GMT
Github user madrob commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/107#discussion_r65654141
  
    --- Diff: server/gc/src/main/java/org/apache/accumulo/gc/GarbageCollectWriteAheadLogs.java
---
    @@ -410,4 +556,41 @@ static boolean isUUID(String name) {
         }
       }
     
    +  /**
    +   * Determine if TServer has been dead long enough to remove associated WALs.
    +   * <p>
    +   * Uses a map where the key is the address and the value is the time first seen dead.
If the address is not in the map, it is added with the current system
    +   * nanoTime. When the passed in wait time has elapsed, this method returns true and
removes the key and value from the map.
    +   *
    +   * @param address
    +   *          HostAndPort of dead tserver
    +   * @param wait
    +   *          long value of elapsed time to wait
    +   * @return boolean whether enough time elapsed since the server was first seen as dead.
    +   */
    +  @VisibleForTesting
    +  protected boolean timeToDelete(HostAndPort address, long wait) {
    +    // check whether the tserver has been dead long enough
    +    Long firstSeen = firstSeenDead.get(address);
    +    if (firstSeen != null) {
    +      long elapsedTime = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - firstSeen);
    --- End diff --
    
    Log message claims seconds but code prints millis.


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