Examples with ICheckpointManager org.apache.asterix.common.transactions.ICheckpointManager used on opensource projects

Example 1 with ICheckpointManager

use of org.apache.asterix.common.transactions.ICheckpointManager in project asterixdb by apache.

the class CheckpointTask method perform.

@Override
public void perform(IControllerService cs) throws HyracksDataException {
    INcApplicationContext appContext = (INcApplicationContext) cs.getApplicationContext();
    ICheckpointManager checkpointMgr = appContext.getTransactionSubsystem().getCheckpointManager();
    checkpointMgr.doSharpCheckpoint();
}

Example 2 with ICheckpointManager

use of org.apache.asterix.common.transactions.ICheckpointManager in project asterixdb by apache.

the class CheckpointingTest method testDeleteOldLogFiles.

@Test
public void testDeleteOldLogFiles() {
    try {
        TestNodeController nc = new TestNodeController(new File(TEST_CONFIG_FILE_PATH).getAbsolutePath(), false);
        StorageComponentProvider storageManager = new StorageComponentProvider();
        nc.init();
        List<List<String>> partitioningKeys = new ArrayList<>();
        partitioningKeys.add(Collections.singletonList("key"));
        Dataset dataset = new Dataset(DATAVERSE_NAME, DATASET_NAME, DATAVERSE_NAME, DATA_TYPE_NAME, NODE_GROUP_NAME, null, null, new InternalDatasetDetails(null, PartitioningStrategy.HASH, partitioningKeys, null, null, null, false, null, false), null, DatasetType.INTERNAL, DATASET_ID, 0);
        try {
            nc.createPrimaryIndex(dataset, KEY_TYPES, RECORD_TYPE, META_TYPE, new NoMergePolicyFactory(), null, null, storageManager, KEY_INDEXES, KEY_INDICATOR_LIST);
            IHyracksTaskContext ctx = nc.createTestContext(false);
            nc.newJobId();
            ITransactionContext txnCtx = nc.getTransactionManager().getTransactionContext(nc.getTxnJobId(), true);
            // Prepare insert operation
            LSMInsertDeleteOperatorNodePushable insertOp = nc.getInsertPipeline(ctx, dataset, KEY_TYPES, RECORD_TYPE, META_TYPE, new NoMergePolicyFactory(), null, null, KEY_INDEXES, KEY_INDICATOR_LIST, storageManager).getLeft();
            insertOp.open();
            TupleGenerator tupleGenerator = new TupleGenerator(RECORD_TYPE, META_TYPE, KEY_INDEXES, KEY_INDICATOR, RECORD_GEN_FUNCTION, UNIQUE_RECORD_FIELDS, META_GEN_FUNCTION, UNIQUE_META_FIELDS);
            VSizeFrame frame = new VSizeFrame(ctx);
            FrameTupleAppender tupleAppender = new FrameTupleAppender(frame);
            IRecoveryManager recoveryManager = nc.getTransactionSubsystem().getRecoveryManager();
            ICheckpointManager checkpointManager = nc.getTransactionSubsystem().getCheckpointManager();
            LogManager logManager = (LogManager) nc.getTransactionSubsystem().getLogManager();
            // Number of log files after node startup should be one
            int numberOfLogFiles = logManager.getLogFileIds().size();
            Assert.assertEquals(1, numberOfLogFiles);
            // Low-water mark LSN
            long lowWaterMarkLSN = recoveryManager.getMinFirstLSN();
            // Low-water mark log file id
            long initialLowWaterMarkFileId = logManager.getLogFileId(lowWaterMarkLSN);
            // Initial Low-water mark should be in the only available log file
            Assert.assertEquals(initialLowWaterMarkFileId, logManager.getLogFileIds().get(0).longValue());
            // Insert records until a new log file is created
            while (logManager.getLogFileIds().size() == 1) {
                ITupleReference tuple = tupleGenerator.next();
                DataflowUtils.addTupleToFrame(tupleAppender, tuple, insertOp);
            }
            // Check if the new low-water mark is still in the initial low-water mark log file
            lowWaterMarkLSN = recoveryManager.getMinFirstLSN();
            long currentLowWaterMarkLogFileId = logManager.getLogFileId(lowWaterMarkLSN);
            if (currentLowWaterMarkLogFileId == initialLowWaterMarkFileId) {
                /*
                     * Make sure checkpoint will not delete the initial log file since
                     * the low-water mark is still in it (i.e. it is still required for
                     * recovery)
                     */
                int numberOfLogFilesBeforeCheckpoint = logManager.getLogFileIds().size();
                checkpointManager.tryCheckpoint(logManager.getAppendLSN());
                int numberOfLogFilesAfterCheckpoint = logManager.getLogFileIds().size();
                Assert.assertEquals(numberOfLogFilesBeforeCheckpoint, numberOfLogFilesAfterCheckpoint);
                /*
                     * Insert records until the low-water mark is not in the initialLowWaterMarkFileId
                     * either because of the asynchronous flush caused by the previous checkpoint or a flush
                     * due to the dataset memory budget getting full.
                     */
                while (currentLowWaterMarkLogFileId == initialLowWaterMarkFileId) {
                    ITupleReference tuple = tupleGenerator.next();
                    DataflowUtils.addTupleToFrame(tupleAppender, tuple, insertOp);
                    lowWaterMarkLSN = recoveryManager.getMinFirstLSN();
                    currentLowWaterMarkLogFileId = logManager.getLogFileId(lowWaterMarkLSN);
                }
            }
            /*
                 * At this point, the low-water mark is not in the initialLowWaterMarkFileId, so
                 * a checkpoint should delete it.
                 */
            checkpointManager.tryCheckpoint(recoveryManager.getMinFirstLSN());
            // Validate initialLowWaterMarkFileId was deleted
            for (Long fileId : logManager.getLogFileIds()) {
                Assert.assertNotEquals(initialLowWaterMarkFileId, fileId.longValue());
            }
            if (tupleAppender.getTupleCount() > 0) {
                tupleAppender.write(insertOp, true);
            }
            insertOp.close();
            nc.getTransactionManager().completedTransaction(txnCtx, DatasetId.NULL, -1, true);
        } finally {
            nc.deInit();
        }
    } catch (Throwable e) {
        e.printStackTrace();
        Assert.fail(e.getMessage());
    }
}