diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java index d8ed1b3..3da0c0b 100644 --- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java +++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/DefaultMemStore.java @@ -588,7 +588,7 @@ public class DefaultMemStore implements MemStore { // only remove Puts that concurrent scanners cannot possibly see if (cur.getTypeByte() == KeyValue.Type.Put.getCode() && cur.getSequenceId() <= readpoint) { - if (versionsVisible > 1) { + if (versionsVisible >= 1) { // if we get here we have seen at least one version visible to the oldest scanner, // which means we can prove that no scanner will see this version diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultMemStore.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultMemStore.java index ded8dd1..200790b 100644 --- a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultMemStore.java +++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestDefaultMemStore.java @@ -843,12 +843,16 @@ public class TestDefaultMemStore extends TestCase { this.memstore.upsert(l, 2);// readpoint is 2 long newSize = this.memstore.size.get(); assert(newSize > oldSize); - + //The kv1 should be removed. + assert(memstore.cellSet.size() == 2); + KeyValue kv4 = KeyValueTestUtil.create("r", "f", "q", 104, "v"); kv4.setSequenceId(1); l.clear(); l.add(kv4); this.memstore.upsert(l, 3); assertEquals(newSize, this.memstore.size.get()); + //The kv2 should be removed. + assert(memstore.cellSet.size() == 2); //this.memstore = null; }