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

Example 11 with LockRequest

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

the class TestTxnHandler method testLockSWSR.

@Test
public void testLockSWSR() throws Exception {
    // Test that read can acquire after write
    LockComponent comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    comp.setOperationType(DataOperationType.UPDATE);
    List<LockComponent> components = new ArrayList<LockComponent>(1);
    components.add(comp);
    LockRequest req = new LockRequest(components, "me", "localhost");
    req.setTxnid(openTxn());
    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 12 with LockRequest

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

the class TestTxnHandler method testLockSRE.

@Test
public void testLockSRE() throws Exception {
    // Test that read blocks exclusive
    LockComponent comp = new LockComponent(LockType.SHARED_READ, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    comp.setOperationType(DataOperationType.SELECT);
    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 13 with LockRequest

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

the class TestTxnHandler method testLockSWSWSW.

@Test
public void testLockSWSWSW() throws Exception {
    // Test that write blocks two writes
    LockComponent comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setPartitionname("mypartition");
    comp.setOperationType(DataOperationType.DELETE);
    List<LockComponent> components = new ArrayList<LockComponent>(1);
    components.add(comp);
    LockRequest req = new LockRequest(components, "me", "localhost");
    req.setTxnid(openTxn());
    LockResponse res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
    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);
    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);
}

Example 14 with LockRequest

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

the class TestTxnHandler method testLockSRSW.

@Test
public void testLockSRSW() throws Exception {
    // Test that write can acquire after read
    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_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.ACQUIRED);
}

Example 15 with LockRequest

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

the class TestTxnHandler method testLockSameDB.

@Test
public void testLockSameDB() throws Exception {
    // Test that two different databases don't collide on their locks
    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, "mydb");
    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);
}