Examples with RecordList com.arjuna.ats.arjuna.coordinator.RecordList used on opensource projects

Example 1 with RecordList

use of com.arjuna.ats.arjuna.coordinator.RecordList in project narayana by jbosstm.

the class Transaction method end.

// in this version close need to run as blocking code {@link Vertx().executeBlocking}
public int end(boolean compensate) {
    inFlight = false;
    int res = status();
    boolean nested = !isTopLevel();
    if (scheduledAbort != null) {
        scheduledAbort.cancel(false);
        scheduledAbort = null;
    }
    // nested compensators need to be remembered in case the enclosing LRA decides to compensate
    // also save the list so that we can retrieve any response data after committing compensators
    // if (nested)
    savePendingList();
    if ((res != ActionStatus.RUNNING) && (res != ActionStatus.ABORT_ONLY)) {
        if (nested && compensate) {
            /*
                 * Note that we do not hook into ActionType.NESTED because that would mean that after a
                 * nested txn is committed its participants are merged
                 * with the parent and they can then only be aborted if the parent aborts whereas in
                 * the LRA model nested LRAs can be compensated whilst the enclosing LRA is completed
                 */
            // repopulate the pending list TODO it won't neccessarily be present during recovery
            pendingList = new RecordList();
            pending.forEach(r -> pendingList.putRear(r));
            updateState(CompensatorStatus.Compensating);
            super.phase2Abort(true);
            // res = super.Abort();
            res = status();
            status = toLRAStatus(status());
        }
    } else {
        if (compensate || status() == ActionStatus.ABORT_ONLY) {
            // compensators must be called in reverse order so reverse the pending list
            int sz = pendingList == null ? 0 : pendingList.size();
            for (int i = sz - 1; i > 0; i--) pendingList.putRear(pendingList.getFront());
            // tell each participant that the lra canceled
            updateState(CompensatorStatus.Compensating);
            // this route to abort forces a log write on failures and heuristics
            res = super.Abort();
        } else {
            // tell each participant that the lra completed ok
            updateState(CompensatorStatus.Completing);
            res = super.End(true);
        }
    }
    updateState();
    // gather up any response data
    ObjectMapper mapper = new ObjectMapper();
    if (pending != null && pending.size() != 0) {
        if (!nested)
            // TODO we will loose this data if we need recovery
            pending.clear();
    }
    if (getSize(heuristicList) != 0 || getSize(failedList) != 0)
        status = CompensatorStatus.Compensating;
    else if (getSize(pendingList) != 0 || getSize(preparedList) != 0)
        status = CompensatorStatus.Completing;
    else
        status = toLRAStatus(res);
    if (!isRecovering())
        if (lraService != null)
            lraService.finished(this, false);
        else
            LRALogger.logger.warn("null LRAService in LRA#end");
    responseData = status == null ? null : status.name();
    return res;
}

Example 2 with RecordList

use of com.arjuna.ats.arjuna.coordinator.RecordList in project narayana by jbosstm.

the class ActionBean method setStatus.

/**
 * Request a change in status of a participant. For example if a record has a
 * heuristic status then this method could be used to move it back into the
 * prepared state so that the recovery system can replay phase 2 of the
 * commitment protocol
 * @param logrec the record whose status is to be changed
 * @param newStatus the desired status
 * @return true if the status was changed
 */
public boolean setStatus(LogRecordWrapper logrec, ParticipantStatus newStatus) {
    ParticipantStatus lt = logrec.getListType();
    AbstractRecord targRecord = logrec.getRecord();
    RecordList oldList = ra.getRecords(lt);
    RecordList newList = ra.getRecords(newStatus);
    // move the record from currList to targList
    if (oldList.remove(targRecord)) {
        if (newList.insert(targRecord)) {
            if (lt.equals(ParticipantStatus.HEURISTIC)) {
                switch(newStatus) {
                    case FAILED:
                        ra.clearHeuristicDecision(TwoPhaseOutcome.FINISH_ERROR);
                        break;
                    case PENDING:
                        ra.clearHeuristicDecision(TwoPhaseOutcome.NOT_PREPARED);
                        break;
                    case PREPARED:
                        ra.clearHeuristicDecision(TwoPhaseOutcome.PREPARE_OK);
                        break;
                    case READONLY:
                        ra.clearHeuristicDecision(TwoPhaseOutcome.PREPARE_READONLY);
                        break;
                    default:
                        break;
                }
            }
            ra.doUpdateState();
            return true;
        }
    }
    return false;
}

Example 3 with RecordList

use of com.arjuna.ats.arjuna.coordinator.RecordList in project narayana by jbosstm.

the class RecordListUnitTest method test.

@Test
public void test() throws Exception {
    RecordList rl = new RecordList();
    DisposeRecord dr = new DisposeRecord();
    rl.insert(dr);
    assertEquals(rl.getFront(), dr);
    rl.insert(dr);
    assertEquals(rl.getRear(), dr);
    RecordList copy = new RecordList(rl);
    ActivationRecord ar = new ActivationRecord();
    rl.insert(ar);
    rl.print(new PrintWriter(new ByteArrayOutputStream()));
    assertTrue(rl.toString() != null);
    assertEquals(rl.getNext(dr), null);
    assertTrue(rl.peekFront() != null);
    assertTrue(rl.peekRear() != null);
    assertEquals(rl.peekNext(dr), null);
    assertTrue(rl.remove(dr));
}

Example 4 with RecordList

use of com.arjuna.ats.arjuna.coordinator.RecordList in project narayana by jbosstm.

the class CrashRecoveryCommitReturnsXA_RETRYHeuristicRollback method testHeuristicRollback.

@Test
public void testHeuristicRollback() throws Exception {
    // this test is supposed to leave a record around in the log store
    // during a commit long enough
    // that the periodic recovery thread runs and detects it. rather than
    // rely on delays to make
    // this happen (placing us at the mercy of the scheduler) we use a
    // byteman script to enforce
    // the thread sequence we need
    RecoveryEnvironmentBean recoveryEnvironmentBean = BeanPopulator.getDefaultInstance(RecoveryEnvironmentBean.class);
    // JBTM-1354 we need to make sure that a full scan has gone off
    recoveryEnvironmentBean.setRecoveryBackoffPeriod(1);
    recoveryEnvironmentBean.setPeriodicRecoveryPeriod(Integer.MAX_VALUE);
    List<String> recoveryModuleClassNames = new ArrayList<String>();
    recoveryModuleClassNames.add("com.arjuna.ats.internal.arjuna.recovery.AtomicActionRecoveryModule");
    recoveryModuleClassNames.add("com.arjuna.ats.internal.jta.recovery.arjunacore.XARecoveryModule");
    recoveryEnvironmentBean.setRecoveryModuleClassNames(recoveryModuleClassNames);
    List<String> expiryScannerClassNames = new ArrayList<String>();
    expiryScannerClassNames.add("com.arjuna.ats.internal.arjuna.recovery.ExpiredTransactionStatusManagerScanner");
    recoveryEnvironmentBean.setExpiryScannerClassNames(expiryScannerClassNames);
    recoveryEnvironmentBean.setRecoveryActivators(null);
    // start the recovery manager
    RecoveryManager.manager().initialize();
    XARecoveryModule xaRecoveryModule = null;
    for (RecoveryModule recoveryModule : ((Vector<RecoveryModule>) RecoveryManager.manager().getModules())) {
        if (recoveryModule instanceof XARecoveryModule) {
            xaRecoveryModule = (XARecoveryModule) recoveryModule;
            break;
        }
    }
    if (xaRecoveryModule == null) {
        throw new Exception("No XARM");
    }
    // JBTM-1354 Run a scan to make sure that the recovery thread has completed a full run before starting the test
    // The important thing is that replayCompletion is allowed to do a scan of the transactions
    RecoveryManager.manager().scan();
    XAResource firstResource = new SimpleResource();
    Object toWakeUp = new Object();
    final SimpleResourceXA_RETRYHeuristicRollback secondResource = new SimpleResourceXA_RETRYHeuristicRollback();
    xaRecoveryModule.addXAResourceRecoveryHelper(new XAResourceRecoveryHelper() {

        @Override
        public boolean initialise(String p) throws Exception {
            // TODO Auto-generated method stub
            return true;
        }

        @Override
        public XAResource[] getXAResources() throws Exception {
            // TODO Auto-generated method stub
            return new XAResource[] { secondResource };
        }
    });
    // ok, now drive a TX to completion. the script should ensure that the
    // recovery
    javax.transaction.TransactionManager tm = com.arjuna.ats.jta.TransactionManager.transactionManager();
    tm.begin();
    javax.transaction.Transaction theTransaction = tm.getTransaction();
    Uid txUid = ((TransactionImple) theTransaction).get_uid();
    theTransaction.enlistResource(firstResource);
    theTransaction.enlistResource(secondResource);
    assertFalse(secondResource.wasCommitted());
    tm.commit();
    InputObjectState uids = new InputObjectState();
    String type = new AtomicAction().type();
    StoreManager.getRecoveryStore().allObjUids(type, uids);
    boolean moreUids = true;
    boolean found = false;
    while (moreUids) {
        Uid theUid = UidHelper.unpackFrom(uids);
        if (theUid.equals(txUid)) {
            found = true;
            Field heuristicListField = BasicAction.class.getDeclaredField("heuristicList");
            heuristicListField.setAccessible(true);
            ActionStatusService ass = new ActionStatusService();
            {
                int theStatus = ass.getTransactionStatus(type, theUid.stringForm());
                assertTrue(theStatus == ActionStatus.COMMITTED);
                RecoverAtomicAction rcvAtomicAction = new RecoverAtomicAction(theUid, theStatus);
                theStatus = rcvAtomicAction.status();
                rcvAtomicAction.replayPhase2();
                assertTrue(theStatus == ActionStatus.COMMITTED);
                assertTrue(secondResource.wasCommitted());
                RecordList heuristicList = (RecordList) heuristicListField.get(rcvAtomicAction);
                assertTrue("Expected 1 heuristics: " + heuristicList.size(), heuristicList.size() == 1);
            }
            {
                int theStatus = ass.getTransactionStatus(type, theUid.stringForm());
                assertTrue(theStatus == ActionStatus.COMMITTED);
                RecoverAtomicAction rcvAtomicAction = new RecoverAtomicAction(theUid, theStatus);
                theStatus = rcvAtomicAction.status();
                assertTrue(theStatus == ActionStatus.COMMITTED);
                RecordList heuristicList = (RecordList) heuristicListField.get(rcvAtomicAction);
                assertTrue("Expected 1 heuristics: " + heuristicList.size(), heuristicList.size() == 1);
                assertTrue(secondResource.wasCommitted());
            }
        } else if (theUid.equals(Uid.nullUid())) {
            moreUids = false;
        }
    }
    if (!found) {
        throw new Exception("Could not locate the Uid");
    }
}