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HBASE-1431 NPE in HTable.checkAndSave when row doesn't exist 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@775739 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andrew Kyle Purtell 2009-05-17 19:18:00 +00:00
parent 755ea927b4
commit 6eb8f1e58f
3 changed files with 93 additions and 10 deletions
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2
CHANGES.txt
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@ -131,6 +131,8 @@ Release 0.20.0 - Unreleased
HBASE-1323 hbase-1234 broke TestThriftServer; fix and reenable
HBASE-1425 ColumnValueFilter and WhileMatchFilter fixes on trunk
(Clint Morgan via Stack)
HBASE-1431 NPE in HTable.checkAndSave when row doesn't exist (Guilherme
Mauro Germoglio Barbosa via Andrew Purtell)
IMPROVEMENTS
HBASE-1089 Add count of regions on filesystem to master UI; add percentage

6
src/java/org/apache/hadoop/hbase/regionserver/HRegion.java
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@ -1397,7 +1397,11 @@ public class HRegion implements HConstants {
HConstants.LATEST_TIMESTAMP, 1,lid);
for (byte[] key : keySet) {
// If test fails exit
if(!Bytes.equals(actualValues.get(key).getValue(),
Cell cell = actualValues.get(key);
byte[] actualValue = new byte[] {};
if (cell != null)
actualValue = cell.getValue();
if(!Bytes.equals(actualValue,
expectedValues.get(key))) {
success = false;
break;

77
src/test/org/apache/hadoop/hbase/client/TestHTable.java
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@ -236,10 +236,22 @@ public class TestHTable extends HBaseClusterTestCase implements HConstants {
BatchUpdate batchUpdate2 = new BatchUpdate(row);
BatchUpdate batchUpdate3 = new BatchUpdate(row);
// this row doesn't exist when checkAndSave is invoked
byte [] row1 = Bytes.toBytes("row1");
BatchUpdate batchUpdate4 = new BatchUpdate(row1);
// to be used for a checkAndSave for expected empty columns
BatchUpdate batchUpdate5 = new BatchUpdate(row);
HbaseMapWritable<byte[],byte[]> expectedValues =
new HbaseMapWritable<byte[],byte[]>();
HbaseMapWritable<byte[],byte[]> badExpectedValues =
new HbaseMapWritable<byte[],byte[]>();
HbaseMapWritable<byte[],byte[]> expectedNoValues =
new HbaseMapWritable<byte[],byte[]>();
// the columns used here must not be updated on batchupate
HbaseMapWritable<byte[],byte[]> expectedNoValues1 =
new HbaseMapWritable<byte[],byte[]>();
for(int i = 0; i < 5; i++) {
// This batchupdate is our initial batch update,
@ -251,6 +263,11 @@ public class TestHTable extends HBaseClusterTestCase implements HConstants {
badExpectedValues.put(Bytes.toBytes(COLUMN_FAMILY_STR+i),
Bytes.toBytes(500));
expectedNoValues.put(Bytes.toBytes(COLUMN_FAMILY_STR+i), new byte[] {});
// the columns used here must not be updated on batchupate
expectedNoValues1.put(Bytes.toBytes(COLUMN_FAMILY_STR+i+","+i), new byte[] {});
// This is our second batchupdate that we will use to update the initial
// batchupdate
batchUpdate2.put(COLUMN_FAMILY_STR+i, Bytes.toBytes(i+1));
@ -258,6 +275,14 @@ public class TestHTable extends HBaseClusterTestCase implements HConstants {
// This final batch update is to check that our expected values (which
// are now wrong)
batchUpdate3.put(COLUMN_FAMILY_STR+i, Bytes.toBytes(i+2));
// Batch update that will not happen because it is to happen with some
// expected values, but the row doesn't exist
batchUpdate4.put(COLUMN_FAMILY_STR+i, Bytes.toBytes(i));
// Batch update will happen: the row exists, but the expected columns don't,
// just as the condition
batchUpdate5.put(COLUMN_FAMILY_STR+i, Bytes.toBytes(i+3));
}
// Initialize rows
@ -279,6 +304,58 @@ public class TestHTable extends HBaseClusterTestCase implements HConstants {
// make sure that the old expected values fail
assertFalse(table.checkAndSave(batchUpdate3, expectedValues,null));
// row doesn't exist, so doesn't matter the expected
// values (unless they are empty)
assertFalse(table.checkAndSave(batchUpdate4, badExpectedValues, null));
assertTrue(table.checkAndSave(batchUpdate4, expectedNoValues, null));
// make sure check and save saves the data when expected values were empty and the row
// didn't exist
r = table.getRow(row1);
columns = batchUpdate4.getColumns();
for(int i = 0; i < columns.length;i++) {
assertTrue(Bytes.equals(r.get(columns[i]).getValue(),batchUpdate4.get(columns[i])));
}
// since the row isn't empty anymore, those expected (empty) values
// are not valid anymore, so check and save method doesn't save.
assertFalse(table.checkAndSave(batchUpdate4, expectedNoValues, null));
// the row exists, but the columns don't. since the expected values are
// for columns without value, checkAndSave must be successful.
assertTrue(table.checkAndSave(batchUpdate5, expectedNoValues1, null));
// make sure checkAndSave saved values for batchUpdate5.
r = table.getRow(row);
columns = batchUpdate5.getColumns();
for(int i = 0; i < columns.length;i++) {
assertTrue(Bytes.equals(r.get(columns[i]).getValue(),batchUpdate5.get(columns[i])));
}
// since the condition wasn't changed, the following checkAndSave
// must also be successful.
assertTrue(table.checkAndSave(batchUpdate, expectedNoValues1, null));
// make sure checkAndSave saved values for batchUpdate1
r = table.getRow(row);
columns = batchUpdate.getColumns();
for(int i = 0; i < columns.length;i++) {
assertTrue(Bytes.equals(r.get(columns[i]).getValue(),batchUpdate.get(columns[i])));
}
// one failing condition must make the following checkAndSave fail
// the failing condition is a column to be empty, however, it has a value.
HbaseMapWritable<byte[],byte[]> expectedValues1 =
new HbaseMapWritable<byte[],byte[]>();
expectedValues1.put(Bytes.toBytes(COLUMN_FAMILY_STR+0), new byte[] {});
expectedValues1.put(Bytes.toBytes(COLUMN_FAMILY_STR+"EMPTY+ROW"), new byte[] {});
assertFalse(table.checkAndSave(batchUpdate5, expectedValues1, null));
// assure the values on the row remain the same
r = table.getRow(row);
columns = batchUpdate.getColumns();
for(int i = 0; i < columns.length;i++) {
assertTrue(Bytes.equals(r.get(columns[i]).getValue(),batchUpdate.get(columns[i])));
}
}
/**