Esempio n. 1
0
  @Test
  public void cleanEmptyAbortedTxns() throws Exception {
    // Test that we are cleaning aborted transactions with no components left in txn_components.
    // Put one aborted transaction with an entry in txn_components to make sure we don't
    // accidently clean it too.
    Table t = newTable("default", "ceat", false);

    long txnid = openTxn();
    LockComponent comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.TABLE, "default");
    comp.setTablename("ceat");
    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);
    txnHandler.abortTxn(new AbortTxnRequest(txnid));

    for (int i = 0; i < 100; i++) {
      txnid = openTxn();
      txnHandler.abortTxn(new AbortTxnRequest(txnid));
    }
    GetOpenTxnsResponse openTxns = txnHandler.getOpenTxns();
    Assert.assertEquals(101, openTxns.getOpen_txnsSize());

    startInitiator();

    openTxns = txnHandler.getOpenTxns();
    Assert.assertEquals(1, openTxns.getOpen_txnsSize());
  }
  @Test
  public void testMarkCleanedCleansTxnsAndTxnComponents() throws Exception {
    long txnid = openTxn();
    LockComponent comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("mytable");
    comp.setOperationType(DataOperationType.INSERT);
    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.abortTxn(new AbortTxnRequest(txnid));

    txnid = openTxn();
    comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("yourtable");
    comp.setOperationType(DataOperationType.DELETE);
    components = new ArrayList<LockComponent>(1);
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    req.setTxnid(txnid);
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
    txnHandler.abortTxn(new AbortTxnRequest(txnid));

    txnid = openTxn();
    comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("foo");
    comp.setPartitionname("bar");
    comp.setOperationType(DataOperationType.UPDATE);
    components = new ArrayList<LockComponent>(1);
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    req.setTxnid(txnid);
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);

    comp = new LockComponent(LockType.SHARED_WRITE, LockLevel.DB, "mydb");
    comp.setTablename("foo");
    comp.setPartitionname("baz");
    comp.setOperationType(DataOperationType.UPDATE);
    components = new ArrayList<LockComponent>(1);
    components.add(comp);
    req = new LockRequest(components, "me", "localhost");
    req.setTxnid(txnid);
    res = txnHandler.lock(req);
    assertTrue(res.getState() == LockState.ACQUIRED);
    txnHandler.abortTxn(new AbortTxnRequest(txnid));

    CompactionInfo ci = new CompactionInfo();

    // Now clean them and check that they are removed from the count.
    CompactionRequest rqst = new CompactionRequest("mydb", "mytable", CompactionType.MAJOR);
    txnHandler.compact(rqst);
    assertEquals(0, txnHandler.findReadyToClean().size());
    ci = txnHandler.findNextToCompact("fred");
    assertNotNull(ci);
    txnHandler.markCompacted(ci);

    List<CompactionInfo> toClean = txnHandler.findReadyToClean();
    assertEquals(1, toClean.size());
    txnHandler.markCleaned(ci);

    // Check that we are cleaning up the empty aborted transactions
    GetOpenTxnsResponse txnList = txnHandler.getOpenTxns();
    assertEquals(3, txnList.getOpen_txnsSize());
    txnHandler.cleanEmptyAbortedTxns();
    txnList = txnHandler.getOpenTxns();
    assertEquals(2, txnList.getOpen_txnsSize());

    rqst = new CompactionRequest("mydb", "foo", CompactionType.MAJOR);
    rqst.setPartitionname("bar");
    txnHandler.compact(rqst);
    assertEquals(0, txnHandler.findReadyToClean().size());
    ci = txnHandler.findNextToCompact("fred");
    assertNotNull(ci);
    txnHandler.markCompacted(ci);

    toClean = txnHandler.findReadyToClean();
    assertEquals(1, toClean.size());
    txnHandler.markCleaned(ci);

    txnHandler.openTxns(new OpenTxnRequest(1, "me", "localhost"));
    txnHandler.cleanEmptyAbortedTxns();
    txnList = txnHandler.getOpenTxns();
    assertEquals(3, txnList.getOpen_txnsSize());
  }