Himanshu-g81 commented on code in PR #6435:
URL: https://github.com/apache/hbase/pull/6435#discussion_r1846511052
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hbase-mapreduce/src/test/java/org/apache/hadoop/hbase/mapreduce/TestRowCounter.java:
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@@ -524,6 +526,106 @@ public void testInvalidTable() throws Exception {
}
}
+ /**
+ * Step 1: Add 6 rows(row1, row2, row3, row4, row5 and row6) to a table.
Each row contains 1
+ * column family and 4 columns. Step 2: Delete a column for row1. Step 3:
Delete a column family
+ * for row2 and row4. Step 4: Delete all versions of a specific column for
row3, row5 and row6.
+ * <p>
+ * Case 1: Run row counter without countDeleteMarkers flag Step a: Validate
counter values.
+ * <p>
+ * Case 2: Run row counter with countDeleteMarkers flag Step a: Validate
counter values.
+ */
+ @Test
+ public void testRowCounterWithCountDeleteMarkersOption() throws Exception {
+ // Test Setup
+
+ final TableName tableName =
+ TableName.valueOf(TABLE_NAME + "_" + "withCountDeleteMarkersOption");
+ final byte[][] rowKeys = { Bytes.toBytes("row1"), Bytes.toBytes("row2"),
Bytes.toBytes("row3"),
+ Bytes.toBytes("row4"), Bytes.toBytes("row5"), Bytes.toBytes("row6") };
+ final byte[] columnFamily = Bytes.toBytes("cf");
+ final byte[][] columns =
+ { Bytes.toBytes("A"), Bytes.toBytes("B"), Bytes.toBytes("C"),
Bytes.toBytes("D") };
+ final byte[] value = Bytes.toBytes("a");
+
+ try (Table table = TEST_UTIL.createTable(tableName, columnFamily)) {
+ // Step 1: Insert rows with columns
+ for (byte[] rowKey : rowKeys) {
+ Put put = new Put(rowKey);
+ for (byte[] col : columns) {
+ put.addColumn(columnFamily, col, value);
+ }
+ table.put(put);
+ }
+ TEST_UTIL.getAdmin().flush(tableName);
+
+ // Steps 2, 3, and 4: Delete columns, families, and all versions of
columns
Review Comment:
Let's say if there is a bug in this
[logic](https://github.com/apache/hbase/pull/6435/files#diff-d21a22d2237f8dada4e58ea5cd7d695b6dccd97ee58b74408352ebbb51d99858R120-R144)
- (wild guess - break statement is removed in future by mistake) and delete
marker rows are incremented for all the scanned rows - it won't be caught by
existing UTs.
Its ensuring that new code is count the "required" things and not "all" the
things.
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