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

Example 6 with LockComponent

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

the class TestTxnHandler method testLockDifferentPartitions.

@Test
public void testLockDifferentPartitions() throws Exception {
    // Test that two different partitions don't collide on their locks
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    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.setPartitionname("yourpartition");
    comp.setOperationType(DataOperationType.NO_TXN);
    components.clear();
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
}

Example 7 with LockComponent

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

the class TestTxnHandler method testLockSamePartition.

@Test
public void testLockSamePartition() throws Exception {
    // Test that two different partitions don't collide on their locks
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    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.setPartitionname("mypartition");
    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 8 with LockComponent

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

the class TestTxnHandler method testLockDifferentTableDoesntLockPartition.

@Test
public void testLockDifferentTableDoesntLockPartition() throws Exception {
    // Test that locking a table prevents locking of partitions of the table
    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("yourtable");
    comp.setPartitionname("mypartition");
    comp.setOperationType(DataOperationType.NO_TXN);
    components.clear();
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
}

Example 9 with LockComponent

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

the class TestTxnHandler method testLockSRSR.

@Test
public void testLockSRSR() throws Exception {
    // Test that two shared read locks can share a partition
    LockComponent comp = new LockComponent(LockType.SHARED_READ, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    comp.setOperationType(DataOperationType.INSERT);
    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");
    comp.setOperationType(DataOperationType.SELECT);
    components.clear();
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
}

Example 10 with LockComponent

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

the class TestTxnHandler method testLockEESW.

@Test
public void testLockEESW() throws Exception {
    // Test that exclusive blocks exclusive and write
    LockComponent comp = new LockComponent(LockType.EXCLUSIVE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    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.setPartitionname("mypartition");
    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);
    comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    comp.setOperationType(DataOperationType.DELETE);
    components.clear();
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    req.setTxnid(openTxn());
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.WAITING);
}