HBASE-16660 ArrayIndexOutOfBounds during the majorCompactionCheck in 
DateTieredCompaction

Signed-off-by: Andrew Purtell <apurt...@apache.org>


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/96a8e8dc
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/96a8e8dc
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/96a8e8dc

Branch: refs/heads/branch-1
Commit: 96a8e8dce4ea65a12af6c14d22ef4d34b52ebb6c
Parents: a3485cc
Author: Abhishek Singh Chouhan <abhishekchouhan...@gmail.com>
Authored: Tue Sep 27 20:32:52 2016 +0530
Committer: Andrew Purtell <apurt...@apache.org>
Committed: Tue Sep 27 11:08:00 2016 -0700

----------------------------------------------------------------------
 .../compactions/DateTieredCompactionPolicy.java     |  3 +++
 .../TestDateTieredCompactionPolicy.java             | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/96a8e8dc/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.java
 
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.java
index 037bc80..e37a7fe 100644
--- 
a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.java
+++ 
b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/DateTieredCompactionPolicy.java
@@ -153,6 +153,9 @@ public class DateTieredCompactionPolicy extends 
SortedCompactionPolicy {
         minTimestamp == null ? (Long)Long.MAX_VALUE : minTimestamp);
       int upperWindowIndex = Collections.binarySearch(boundaries,
         file.getMaximumTimestamp() == null ? (Long)Long.MAX_VALUE : 
file.getMaximumTimestamp());
+      // Handle boundary conditions and negative values of binarySearch
+      lowerWindowIndex = (lowerWindowIndex < 0) ? Math.abs(lowerWindowIndex + 
2) : lowerWindowIndex;
+      upperWindowIndex = (upperWindowIndex < 0) ? Math.abs(upperWindowIndex + 
2) : upperWindowIndex;
       if (lowerWindowIndex != upperWindowIndex) {
         LOG.debug("Major compaction triggered on store " + this + "; because 
file "
           + file.getPath() + " has data with timestamps cross window 
boundaries");

http://git-wip-us.apache.org/repos/asf/hbase/blob/96a8e8dc/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDateTieredCompactionPolicy.java
----------------------------------------------------------------------
diff --git 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDateTieredCompactionPolicy.java
 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDateTieredCompactionPolicy.java
index eb52a84..4f02d8a 100644
--- 
a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDateTieredCompactionPolicy.java
+++ 
b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDateTieredCompactionPolicy.java
@@ -235,6 +235,22 @@ public class TestDateTieredCompactionPolicy extends 
AbstractTestDateTieredCompac
   }
 
   /**
+   * Major Compaction to check min max timestamp falling in the same window 
and also to check
+   * boundary condition in which case binary sort gives insertion point as 
length of the array
+   * @throws IOException
+   */
+  @Test
+  public void checkMinMaxTimestampSameBoundary() throws IOException {
+    long[] minTimestamps = new long[] { 0, 26, 50, 90, 98, 122, 145, 151, 158, 
166 };
+    long[] maxTimestamps = new long[] { 12, 46, 70, 95, 100, 140, 148, 155, 
162, 174 };
+    long[] sizes = new long[] { 0, 50, 51, 40, 41, 42, 33, 30, 31, 2 };
+
+    compactEquals(161, sfCreate(minTimestamps, maxTimestamps, sizes),
+      new long[] { 0, 50, 51, 40, 41, 42, 33, 30, 31, 2 },
+      new long[] { Long.MIN_VALUE, 24, 48, 72, 96, 120, 144, 150, 156 }, true, 
true);
+  }
+
+  /**
    * Major compaction with negative numbers
    * @throws IOException with error
    */

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