Java CheckpointConfig.setMinimizeRecoveryTime方法代码示例

import com.sleepycat.je.CheckpointConfig; //导入方法依赖的package包/类
private void setupSplitData(Database db)
    throws DatabaseException {

    setStepwiseStart();

    int max = 12;

    DatabaseEntry key = new DatabaseEntry();
    DatabaseEntry data = new DatabaseEntry();

    /* Populate a tree so it grows to 3 levels, then checkpoint. */
    for (int i = 0; i < max; i ++) {
        IntegerBinding.intToEntry(i*10, key);
        IntegerBinding.intToEntry(i*10, data);
        assertEquals(OperationStatus.SUCCESS, db.put(null, key, data));
    }

    CheckpointConfig ckptConfig = new CheckpointConfig();
    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "First sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Second sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Third sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Fourth sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Fifth sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Sync6");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "After sync");

    /* Add a key to dirty the left hand branch. */
    IntegerBinding.intToEntry(5, key);
    IntegerBinding.intToEntry(5, data);
    assertEquals(OperationStatus.SUCCESS, db.put(null, key, data));
    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "After single key insert");

    ckptConfig.setForce(true);
    ckptConfig.setMinimizeRecoveryTime(true);
    env.checkpoint(ckptConfig);

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "before split");


    /* Add enough keys to split the right hand branch. */
    for (int i = 51; i < 57; i ++) {
        IntegerBinding.intToEntry(i, key);
        IntegerBinding.intToEntry(i, data);
        assertEquals(OperationStatus.SUCCESS, db.put(null, key, data));
    }

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "after split");
}
 

import com.sleepycat.je.CheckpointConfig; //导入方法依赖的package包/类
private void doTestBinDelta(boolean useDeltas)
throws Throwable {

createEnvAndDbs(1 << 20, false, NUM_DBS);

       StatsConfig statsConfig = new StatsConfig();
       statsConfig.setClear(true);

       CheckpointConfig deltaConfig = new CheckpointConfig();
       deltaConfig.setForce(true);
       deltaConfig.setMinimizeRecoveryTime(!useDeltas);

       try {

           /*
            * Insert 4 records (nodeMax is 6), checkpoint, then insert 1
            * record.  The 1 record insertion will qualify for a delta,
            * because the threshold percentage is 25%, and 25% of 4 is 1.
            */
           int numRecs = 4;
           Hashtable expectedData = new Hashtable();
           Transaction txn = env.beginTransaction(null, null);
           insertData(txn, 0, numRecs, expectedData, 1, true, NUM_DBS);
           env.checkpoint(forceConfig);
           insertData(txn, numRecs+1, numRecs+2, expectedData,
	       1, true, NUM_DBS);
           txn.commit();

           /*
            * If useDeltas is true, this next checkpoint will end up using a
            * BINDelta to log the last inserted record. It will have
            * practically nothing but the root in the checkpoint.
            */
           EnvironmentStats stats = env.getStats(statsConfig);
           env.checkpoint(deltaConfig);
           stats = env.getStats(statsConfig);
           if (useDeltas) {
               assertTrue(stats.getNDeltaINFlush() > 0);
           } else {
               assertTrue(stats.getNDeltaINFlush() == 0);
           }

           /* Shutdown, recover from a checkpoint that uses BINDeltas. */
           closeEnv();
           recoverAndVerify(expectedData, NUM_DBS);
       } catch (Throwable t) {
           t.printStackTrace();
           throw t;
       }
   }
 

import com.sleepycat.je.CheckpointConfig; //导入方法依赖的package包/类
private void setupSplitData(Database db) 
    throws DatabaseException {

    setStepwiseStart();

    int max = 12;

    DatabaseEntry key = new DatabaseEntry();
    DatabaseEntry data = new DatabaseEntry();

    /* Populate a tree so it grows to 3 levels, then checkpoint. */
    for (int i = 0; i < max; i ++) {
        IntegerBinding.intToEntry(i*10, key);
        IntegerBinding.intToEntry(i*10, data);
        assertEquals(OperationStatus.SUCCESS, db.put(null, key, data));
    }

    CheckpointConfig ckptConfig = new CheckpointConfig();
    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "First sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Second sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Third sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Fourth sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Fifth sync");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "Sync6");
    env.sync();

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "After sync");

    /* Add a key to dirty the left hand branch. */
    IntegerBinding.intToEntry(5, key);
    IntegerBinding.intToEntry(5, data);
    assertEquals(OperationStatus.SUCCESS, db.put(null, key, data));
    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "After single key insert");

    ckptConfig.setForce(true);
    ckptConfig.setMinimizeRecoveryTime(true);
    env.checkpoint(ckptConfig);       

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "before split");


    /* Add enough keys to split the right hand branch. */
    for (int i = 51; i < 57; i ++) {
        IntegerBinding.intToEntry(i, key);
        IntegerBinding.intToEntry(i, data);
        assertEquals(OperationStatus.SUCCESS, db.put(null, key, data));
    }

    Tracer.trace(Level.SEVERE, DbInternal.envGetEnvironmentImpl(env),
                 "after split");
}
 

import com.sleepycat.je.CheckpointConfig; //导入方法依赖的package包/类
private void doTestBinDelta(boolean useDeltas)
throws Throwable {

createEnvAndDbs(1 << 20, false, NUM_DBS);

       StatsConfig statsConfig = new StatsConfig();
       statsConfig.setClear(true);

       CheckpointConfig deltaConfig = new CheckpointConfig();
       deltaConfig.setForce(true);
       deltaConfig.setMinimizeRecoveryTime(!useDeltas);

       try {
           
           /*
            * Insert 4 records (nodeMax is 6), checkpoint, then insert 1
            * record.  The 1 record insertion will qualify for a delta,
            * because the threshold percentage is 25%, and 25% of 4 is 1.
            */
           int numRecs = 4;
           Hashtable expectedData = new Hashtable();
           Transaction txn = env.beginTransaction(null, null);
           insertData(txn, 0, numRecs, expectedData, 1, true, NUM_DBS);
           env.checkpoint(forceConfig);
           insertData(txn, numRecs+1, numRecs+2, expectedData,
	       1, true, NUM_DBS);
           txn.commit();
           
           /* 
            * If useDeltas is true, this next checkpoint will end up using a
            * BINDelta to log the last inserted record. It will have
            * practically nothing but the root in the checkpoint.
            */
           EnvironmentStats stats = env.getStats(statsConfig);
           env.checkpoint(deltaConfig);
           stats = env.getStats(statsConfig);
           if (useDeltas) {
               assertTrue(stats.getNDeltaINFlush() > 0);
           } else {
               assertTrue(stats.getNDeltaINFlush() == 0);
           }

           /* Shutdown, recover from a checkpoint that uses BINDeltas. */
           closeEnv();
           recoverAndVerify(expectedData, NUM_DBS);
       } catch (Throwable t) {
           t.printStackTrace();
           throw t;
       }
   }
 

import com.sleepycat.je.CheckpointConfig; //导入方法依赖的package包/类
/**
 * Process the shutdown message from the master and return the
 * GroupShutdownException that must be thrown to exit the Replica loop.
 *
 * @return the GroupShutdownException
 */
private GroupShutdownException processShutdown(ShutdownRequest shutdown)
    throws IOException {

    /*
     * Acknowledge the shutdown message right away, since the checkpoint
     * operation can take a long time to complete. Long enough to exceed
     * the feeder timeout on the master. The master only needs to know that
     * the replica has received the message.
     */
    protocol.write(protocol.new ShutdownResponse(), replicaFeederChannel);

    /*
     * Turn off network timeouts on the replica, since we don't want the
     * replica to timeout the connection. The connection itself is no
     * longer used past this point and will be reclaimed as part of normal
     * replica exit cleanup.
     */
    replicaFeederChannel.setTimeoutMs(Integer.MAX_VALUE);

    /*
     * TODO: Share the following code with the standalone Environment
     * shutdown, or better yet, call EnvironmentImpl.doClose here.
     */

    /*
     * Begin shutdown of the deamons before checkpointing.  Cleaning during
     * the checkpoint is wasted and slows down the checkpoint, plus it may
     * cause additional checkpoints.
     */
    repNode.getRepImpl().requestShutdownDaemons();

    /*
     * Now start a potentially long running checkpoint.
     */
    LoggerUtils.info(logger, repImpl, "Checkpoint initiated.");
    CheckpointConfig config = new CheckpointConfig();
    config.setForce(true);
    config.setMinimizeRecoveryTime(true);
    repNode.getRepImpl().invokeCheckpoint(config, "Group Shutdown");
    /* Force final shutdown of the daemons. */
    repNode.getRepImpl().shutdownDaemons();
    LoggerUtils.info(logger, repImpl, "Checkpoint completed.");

    return new GroupShutdownException(logger,
                                      repNode,
                                      shutdown.getShutdownTimeMs());
}
 

import com.sleepycat.je.CheckpointConfig; //导入方法依赖的package包/类
/**
 * @see EnvironmentImpl#setupClose
 *
 * Note: this conversion process will iterate over all user created
 * databases in the environment, which could be potentially be a costly
 * affair. However, let's opt for simplicity and defer any optimizations
 * until we see whether this is an important use case.
 */
@Override
protected void postRecoveryConversion() {

    super.postRecoveryConversion();

    if (needRepConvert) {
        /* Set NameDb to replicated. */
        DatabaseImpl nameDb = null;
        try {
            nameDb = dbMapTree.getDb(DbTree.NAME_DB_ID);
            if (!nameDb.isReplicated()) {
                nameDb.setIsReplicatedBit();
                nameDb.setDirtyUtilization();
            }
        } finally {
            if (nameDb != null) {
                dbMapTree.releaseDb(nameDb);
            }
        }

        /* Set user defined databases to replicated. */
        Map<DatabaseId, String> idNameMap = dbMapTree.getDbNamesAndIds();
        for (DatabaseId id : idNameMap.keySet()) {
            DatabaseImpl db = null;
            try {
                db = dbMapTree.getDb(id);
                if (db != null &&
                    !DbTree.isReservedDbName(idNameMap.get(id))) {

                    db.setIsReplicatedBit();
                    db.setDirtyUtilization();
                }
            } finally {
                if (db != null) {
                    dbMapTree.releaseDb(db);
                }
            }
        }

        /*
         * Do a checkpointer to flush dirty datbaseImpls that are converted
         * to replicated and write the current VLSNRange to the log.
         */
        CheckpointConfig ckptConfig = new CheckpointConfig();
        ckptConfig.setForce(true);
        ckptConfig.setMinimizeRecoveryTime(true);
        invokeCheckpoint(ckptConfig, "Environment conversion");
    }
}