Examples with LockResponse org.apache.hadoop.hive.metastore.api.LockResponse used on opensource projects

Example 56 with LockResponse

use of org.apache.hadoop.hive.metastore.api.LockResponse in project hive by apache.

the class TestTxnHandler method testLockESRE.

@Test
public void testLockESRE() throws Exception {
    // Test that exclusive blocks read and exclusive
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition=myvalue");
    comp.setOperationType(DataOperationType.NO_TXN);
    List<LockComponent> components = new ArrayList<LockComponent>(1);
    components.add(comp);
    LockRequest req = new LockRequest(components, "me", "localhost");
    LockResponse res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
    comp = new LockComponent(LockType.SHARED_READ, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition=myvalue");
    comp.setOperationType(DataOperationType.SELECT);
    components.clear();
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.WAITING);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition=myvalue");
    comp.setOperationType(DataOperationType.NO_TXN);
    components.clear();
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.WAITING);
}

Example 57 with LockResponse

use of org.apache.hadoop.hive.metastore.api.LockResponse in project hive by apache.

the class TestTxnHandler method testMultipleLockWait.

@Test
public void testMultipleLockWait() throws Exception {
    // Test that two shared read locks can share a partition
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition=myvalue");
    comp.setOperationType(DataOperationType.NO_TXN);
    List<LockComponent> components = new ArrayList<LockComponent>(2);
    components.add(comp);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("anotherpartition=anothervalue");
    comp.setOperationType(DataOperationType.NO_TXN);
    components.add(comp);
    LockRequest req = new LockRequest(components, "me", "localhost");
    LockResponse res = txnHandler.lock(req);
    long lockid1 = res.getLockid();
    assertTrue(res.getState() == LockState.ACQUIRED);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition=myvalue");
    comp.setOperationType(DataOperationType.NO_TXN);
    components = new ArrayList<LockComponent>(1);
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    res = txnHandler.lock(req);
    long lockid2 = res.getLockid();
    assertTrue(res.getState() == LockState.WAITING);
    txnHandler.unlock(new UnlockRequest(lockid1));
    res = txnHandler.checkLock(new CheckLockRequest(lockid2));
    assertTrue(res.getState() == LockState.ACQUIRED);
}

Example 58 with LockResponse

use of org.apache.hadoop.hive.metastore.api.LockResponse in project hive by apache.

the class TestTxnHandler method testLockDbDoesNotLockTableInDifferentDB.

@Test
public void testLockDbDoesNotLockTableInDifferentDB() throws Exception {
    // Test that locking a database prevents locking of tables in the database
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setOperationType(DataOperationType.NO_TXN);
    List<LockComponent> components = new ArrayList<LockComponent>(1);
    components.add(comp);
    LockRequest req = new LockRequest(components, "me", "localhost");
    LockResponse res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "yourdb");
    comp.setOperationType(DataOperationType.NO_TXN);
    comp.setTablename("mytable");
    components.clear();
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
}

Example 59 with LockResponse

use of org.apache.hadoop.hive.metastore.api.LockResponse in project hive by apache.

the class TestTxnHandler method testLockSameTable.

@Test
public void testLockSameTable() throws Exception {
    // Test that two different tables don't collide on their locks
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setOperationType(DataOperationType.NO_TXN);
    List<LockComponent> components = new ArrayList<LockComponent>(1);
    components.add(comp);
    LockRequest req = new LockRequest(components, "me", "localhost");
    LockResponse res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
    comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setOperationType(DataOperationType.NO_TXN);
    components.clear();
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.WAITING);
}

Example 60 with LockResponse

use of org.apache.hadoop.hive.metastore.api.LockResponse in project hive by apache.

the class TestTxnHandler method testUnlockOnCommit.

@Test
public void testUnlockOnCommit() throws Exception {
    // Test that committing unlocks
    long txnid = openTxn();
    LockComponent comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setOperationType(DataOperationType.DELETE);
    List<LockComponent> components = new ArrayList<LockComponent>(1);
    components.add(comp);
    LockRequest req = new LockRequest(components, "me", "localhost");
    req.setTxnid(txnid);
    LockResponse res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
    txnHandler.commitTxn(new CommitTxnRequest(txnid));
    assertEquals(0, txnHandler.numLocksInLockTable());
}