@Test
public void testSequenceidAdvancesOnTableInfo() throws IOException {
Path testdir = UTIL.getDataTestDir("testSequenceidAdvancesOnTableInfo");
HTableDescriptor htd = new HTableDescriptor("testSequenceidAdvancesOnTableInfo");
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
Path p0 = FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
int i0 = FSTableDescriptors.getTableInfoSequenceid(p0);
Path p1 = FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
// Assert we cleaned up the old file.
assertTrue(!fs.exists(p0));
int i1 = FSTableDescriptors.getTableInfoSequenceid(p1);
assertTrue(i1 == i0 + 1);
Path p2 = FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
// Assert we cleaned up the old file.
assertTrue(!fs.exists(p1));
int i2 = FSTableDescriptors.getTableInfoSequenceid(p2);
assertTrue(i2 == i1 + 1);
}
@Test
public void testHTableDescriptors() throws IOException, InterruptedException {
final String name = "testHTableDescriptors";
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
// Cleanup old tests if any debris laying around.
Path rootdir = new Path(UTIL.getDataTestDir(), name);
final int count = 10;
// Write out table infos.
for (int i = 0; i < count; i++) {
HTableDescriptor htd = new HTableDescriptor(name + i);
createHTDInFS(fs, rootdir, htd);
}
FSTableDescriptors htds =
new FSTableDescriptors(fs, rootdir) {
@Override
public HTableDescriptor get(byte[] tablename)
throws TableExistsException, FileNotFoundException, IOException {
LOG.info(Bytes.toString(tablename) + ", cachehits=" + this.cachehits);
return super.get(tablename);
}
};
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
// Update the table infos
for (int i = 0; i < count; i++) {
HTableDescriptor htd = new HTableDescriptor(name + i);
htd.addFamily(new HColumnDescriptor("" + i));
FSTableDescriptors.updateHTableDescriptor(fs, rootdir, htd);
}
// Wait a while so mod time we write is for sure different.
Thread.sleep(100);
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
for (int i = 0; i < count; i++) {
assertTrue(htds.get(Bytes.toBytes(name + i)) != null);
}
assertEquals(count * 4, htds.invocations);
assertTrue(
"expected=" + (count * 2) + ", actual=" + htds.cachehits, htds.cachehits >= (count * 2));
assertTrue(htds.get(HConstants.ROOT_TABLE_NAME) != null);
assertEquals(htds.invocations, count * 4 + 1);
assertTrue(
"expected=" + ((count * 2) + 1) + ", actual=" + htds.cachehits,
htds.cachehits >= ((count * 2) + 1));
}
@Test
public void testCreateAndUpdate() throws IOException {
Path testdir = UTIL.getDataTestDir("testCreateAndUpdate");
HTableDescriptor htd = new HTableDescriptor("testCreate");
FileSystem fs = FileSystem.get(UTIL.getConfiguration());
assertTrue(FSTableDescriptors.createTableDescriptor(fs, testdir, htd));
assertFalse(FSTableDescriptors.createTableDescriptor(fs, testdir, htd));
FileStatus[] statuses = fs.listStatus(testdir);
assertTrue("statuses.length=" + statuses.length, statuses.length == 1);
for (int i = 0; i < 10; i++) {
FSTableDescriptors.updateHTableDescriptor(fs, testdir, htd);
}
statuses = fs.listStatus(testdir);
assertTrue(statuses.length == 1);
Path tmpTableDir = new Path(FSUtils.getTablePath(testdir, htd.getName()), ".tmp");
statuses = fs.listStatus(tmpTableDir);
assertTrue(statuses.length == 0);
}