/*
* Test that {@link HFileOutputFormat2} creates an HFile with TIMERANGE
* metadata used by time-restricted scans.
*/
@Test
public void test_TIMERANGE() throws Exception {
Configuration conf = new Configuration(this.util.getConfiguration());
RecordWriter<ImmutableBytesWritable, Cell> writer = null;
TaskAttemptContext context = null;
Path dir = util.getDataTestDir("test_TIMERANGE_present");
LOG.info("Timerange dir writing to dir: " + dir);
try {
// build a record writer using HFileOutputFormat2
Job job = new Job(conf);
FileOutputFormat.setOutputPath(job, dir);
context = createTestTaskAttemptContext(job);
HFileOutputFormat2 hof = new HFileOutputFormat2();
writer = hof.getRecordWriter(context);
// Pass two key values with explicit times stamps
final byte[] b = Bytes.toBytes("b");
// value 1 with timestamp 2000
KeyValue kv = new KeyValue(b, b, b, 2000, b);
KeyValue original = kv.clone();
writer.write(new ImmutableBytesWritable(), kv);
assertEquals(original, kv);
// value 2 with timestamp 1000
kv = new KeyValue(b, b, b, 1000, b);
original = kv.clone();
writer.write(new ImmutableBytesWritable(), kv);
assertEquals(original, kv);
// verify that the file has the proper FileInfo.
writer.close(context);
// the generated file lives 1 directory down from the attempt directory
// and is the only file, e.g.
// _attempt__0000_r_000000_0/b/1979617994050536795
FileSystem fs = FileSystem.get(conf);
Path attemptDirectory = hof.getDefaultWorkFile(context, "").getParent();
FileStatus[] sub1 = fs.listStatus(attemptDirectory);
FileStatus[] file = fs.listStatus(sub1[0].getPath());
// open as HFile Reader and pull out TIMERANGE FileInfo.
HFile.Reader rd = HFile.createReader(fs, file[0].getPath(), new CacheConfig(conf), conf);
Map<byte[], byte[]> finfo = rd.loadFileInfo();
byte[] range = finfo.get("TIMERANGE".getBytes());
assertNotNull(range);
// unmarshall and check values.
TimeRangeTracker timeRangeTracker = new TimeRangeTracker();
Writables.copyWritable(range, timeRangeTracker);
LOG.info(
timeRangeTracker.getMinimumTimestamp() + "...." + timeRangeTracker.getMaximumTimestamp());
assertEquals(1000, timeRangeTracker.getMinimumTimestamp());
assertEquals(2000, timeRangeTracker.getMaximumTimestamp());
rd.close();
} finally {
if (writer != null && context != null) writer.close(context);
dir.getFileSystem(conf).delete(dir, true);
}
}
/**
* Test that {@link HFileOutputFormat2} RecordWriter amends timestamps if passed a keyvalue whose
* timestamp is {@link HConstants#LATEST_TIMESTAMP}.
*
* @see <a href="https://issues.apache.org/jira/browse/HBASE-2615">HBASE-2615</a>
*/
@Ignore("Goes zombie too frequently; needs work. See HBASE-14563")
@Test
public void test_LATEST_TIMESTAMP_isReplaced() throws Exception {
Configuration conf = new Configuration(this.util.getConfiguration());
RecordWriter<ImmutableBytesWritable, Cell> writer = null;
TaskAttemptContext context = null;
Path dir = util.getDataTestDir("test_LATEST_TIMESTAMP_isReplaced");
try {
Job job = new Job(conf);
FileOutputFormat.setOutputPath(job, dir);
context = createTestTaskAttemptContext(job);
HFileOutputFormat2 hof = new HFileOutputFormat2();
writer = hof.getRecordWriter(context);
final byte[] b = Bytes.toBytes("b");
// Test 1. Pass a KV that has a ts of LATEST_TIMESTAMP. It should be
// changed by call to write. Check all in kv is same but ts.
KeyValue kv = new KeyValue(b, b, b);
KeyValue original = kv.clone();
writer.write(new ImmutableBytesWritable(), kv);
assertFalse(original.equals(kv));
assertTrue(Bytes.equals(CellUtil.cloneRow(original), CellUtil.cloneRow(kv)));
assertTrue(Bytes.equals(CellUtil.cloneFamily(original), CellUtil.cloneFamily(kv)));
assertTrue(Bytes.equals(CellUtil.cloneQualifier(original), CellUtil.cloneQualifier(kv)));
assertNotSame(original.getTimestamp(), kv.getTimestamp());
assertNotSame(HConstants.LATEST_TIMESTAMP, kv.getTimestamp());
// Test 2. Now test passing a kv that has explicit ts. It should not be
// changed by call to record write.
kv = new KeyValue(b, b, b, kv.getTimestamp() - 1, b);
original = kv.clone();
writer.write(new ImmutableBytesWritable(), kv);
assertTrue(original.equals(kv));
} finally {
if (writer != null && context != null) writer.close(context);
dir.getFileSystem(conf).delete(dir, true);
}
}
