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From: ivakegg <git@git.apache.org>
To: dev@accumulo.apache.org
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References: <git-pr-275-accumulo@git.apache.org>
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Subject: [GitHub] accumulo pull request #275: ACCUMULO-4667 Reworked the LocalityGroupIterator...
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Message-Id: <20170630161748.2D1EEDFB8A@git1-us-west.apache.org>
Date: Fri, 30 Jun 2017 16:17:47 +0000 (UTC)
archived-at: Fri, 30 Jun 2017 16:17:50 -0000

Github user ivakegg commented on a diff in the pull request:

    https://github.com/apache/accumulo/pull/275#discussion_r125076821
  
    --- Diff: core/src/main/java/org/apache/accumulo/core/iterators/system/LocalityGroupIterator.java ---
    @@ -97,75 +133,117 @@ public static final int seek(HeapIterator hiter, LocalityGroup[] groups, Set<Byt
         else
           cfSet = Collections.emptySet();
     
    -    for (LocalityGroup lgr : groups) {
    -      // when include is set to true it means this locality groups contains
    -      // wanted column families
    -      boolean include = false;
    +    // determine the set of groups to use
    +    Set<LocalityGroup> groupsToUse = new HashSet<LocalityGroup>();
     
    -      if (cfSet.size() == 0) {
    -        include = !inclusive;
    -      } else if (lgr.isDefaultLocalityGroup && lgr.columnFamilies == null) {
    -        // do not know what column families are in the default locality group,
    -        // only know what column families are not in it
    +    // if no column families specified, then include all groups unless !inclusive
    +    if (cfSet.size() == 0) {
    +      if (!inclusive) {
    +        groupsToUse.addAll(Arrays.asList(groups.groups));
    --- End diff --
    
    Good observation.  Thanks.  Will do.


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