public void checkMinVersion() throws Exception {
// For this test to make sense, we must be at version 4.7 or higher
//
int major = Environment.getVersionMajor();
int minor = Environment.getVersionMinor();
assertTrue(major > 4 || (major == 4 && minor >= 7));
}
/** Opens the database and creates the Map. */
private void open() throws Exception {
// use a generic database configuration
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setTransactional(true);
if (create) {
dbConfig.setAllowCreate(true);
dbConfig.setType(DatabaseType.BTREE);
}
// catalog is needed for serial bindings (java serialization)
Database catalogDb = env.openDatabase(null, "catalog", null, dbConfig);
catalog = new StoredClassCatalog(catalogDb);
// use Integer tuple binding for key entries
TupleBinding keyBinding = TupleBinding.getPrimitiveBinding(Integer.class);
// use String serial binding for data entries
SerialBinding dataBinding = new SerialBinding(catalog, String.class);
this.db = env.openDatabase(null, "helloworld", null, dbConfig);
// create a map view of the database
this.map = new StoredSortedMap(db, keyBinding, dataBinding, true);
}
public void restart(int siteId) throws Exception {
EnvironmentConfig ec = makeBasicConfig();
int p = config.getMyPort(siteId);
ReplicationManagerSiteConfig dbsite = new ReplicationManagerSiteConfig("localhost", p);
dbsite.setLocalSite(true);
dbsite.setLegacy(true);
ec.addReplicationManagerSite(dbsite);
p = config.getOtherPort(siteId);
dbsite = new ReplicationManagerSiteConfig("localhost", p);
dbsite.setLegacy(true);
ec.addReplicationManagerSite(dbsite);
MyEventHandler monitor = new MyEventHandler();
ec.setEventHandler(monitor);
File clientDir = new File(config.getBaseDir(), "dir" + siteId);
assertTrue(clientDir.exists());
Environment client = new Environment(clientDir, ec);
client.setReplicationConfig(ReplicationConfig.STRICT_2SITE, false);
envs[siteId] = client;
monitors[siteId] = monitor;
// we want to make sure we don't retry from here after the
// initial failure, because we want to make the old master
// connect to us.
client.setReplicationTimeout(ReplicationTimeoutType.CONNECTION_RETRY, Integer.MAX_VALUE);
client.replicationManagerStart(3, ReplicationManagerStartPolicy.REP_CLIENT);
}
public void checkpoint(int site) throws Exception {
assertNull(envs[site]);
EnvironmentConfig ec = makeBasicConfig();
File dir = new File(config.getBaseDir(), "dir" + site);
assertTrue(dir.exists());
Environment e = new Environment(dir, ec);
e.setReplicationConfig(ReplicationConfig.STRICT_2SITE, false);
CheckpointConfig cc = new CheckpointConfig();
cc.setForce(true);
e.checkpoint(cc);
e.close();
}
/**
* Inserts an entity and returns null, or updates it if the primary key already exists and returns
* the existing entity.
*
* <p>If a {@link PrimaryKey#sequence} is used and the primary key field of the given entity is
* null or zero, this method will assign the next value from the sequence to the primary key field
* of the given entity.
*
* @param txn the transaction used to protect this operation, null to use auto-commit, or null if
* the store is non-transactional.
* @param entity the entity to be inserted or updated.
* @return the existing entity that was updated, or null if the entity was inserted.
* @throws DatabaseException the base class for all BDB exceptions.
*/
public E put(Transaction txn, E entity) throws DatabaseException {
DatabaseEntry keyEntry = new DatabaseEntry();
DatabaseEntry dataEntry = new DatabaseEntry();
assignKey(entity, keyEntry);
boolean autoCommit = false;
Environment env = db.getEnvironment();
if (transactional && txn == null && DbCompat.getThreadTransaction(env) == null) {
txn = env.beginTransaction(null, getAutoCommitTransactionConfig());
autoCommit = true;
}
CursorConfig cursorConfig = null;
if (concurrentDB) {
cursorConfig = new CursorConfig();
DbCompat.setWriteCursor(cursorConfig, true);
}
boolean failed = true;
Cursor cursor = db.openCursor(txn, cursorConfig);
LockMode lockMode = locking ? LockMode.RMW : null;
try {
while (true) {
OperationStatus status = cursor.getSearchKey(keyEntry, dataEntry, lockMode);
if (status == OperationStatus.SUCCESS) {
E existing = entityBinding.entryToObject(keyEntry, dataEntry);
entityBinding.objectToData(entity, dataEntry);
cursor.put(keyEntry, dataEntry);
failed = false;
return existing;
} else {
entityBinding.objectToData(entity, dataEntry);
status = cursor.putNoOverwrite(keyEntry, dataEntry);
if (status != OperationStatus.KEYEXIST) {
failed = false;
return null;
}
}
}
} finally {
cursor.close();
if (autoCommit) {
if (failed) {
txn.abort();
} else {
txn.commit();
}
}
}
}
void closeEnv() throws DatabaseException {
if (env != null) {
env.close();
env = null;
}
}
public void close() throws DatabaseException {
try {
if (dbenv != null) dbenv.close();
} finally {
dbenv = null;
}
}
public void joinExistingClient(int site, boolean useHB) throws Exception {
EnvironmentConfig ec = makeBasicConfig();
int p = config.getMyPort(site);
ReplicationManagerSiteConfig dbsite = new ReplicationManagerSiteConfig("localhost", p);
dbsite.setLocalSite(true);
dbsite.setLegacy(true);
ec.addReplicationManagerSite(dbsite);
p = config.getOtherPort(site);
dbsite = new ReplicationManagerSiteConfig("localhost", p);
dbsite.setLegacy(true);
ec.addReplicationManagerSite(dbsite);
MyEventHandler monitor = new MyEventHandler();
monitors[site] = monitor;
ec.setEventHandler(monitor);
File clientDir = new File(config.getBaseDir(), "dir" + site);
assertTrue(clientDir.exists());
Environment client = new Environment(clientDir, ec);
client.setReplicationConfig(ReplicationConfig.STRICT_2SITE, false);
if (useHB) {
client.setReplicationTimeout(ReplicationTimeoutType.HEARTBEAT_SEND, 3000000);
client.setReplicationTimeout(ReplicationTimeoutType.HEARTBEAT_MONITOR, 6000000);
}
envs[site] = client;
client.setReplicationTimeout(ReplicationTimeoutType.CONNECTION_RETRY, 1000000); // be impatient
client.replicationManagerStart(3, ReplicationManagerStartPolicy.REP_CLIENT);
monitor.await();
assertTrue(client.getReplicationStats(StatsConfig.DEFAULT).getStartupComplete());
}
/** Close all stores (closing a store automatically closes its indices). */
public void close() throws DatabaseException {
// Close secondary databases, then primary databases.
supplierByCityDb.close();
shipmentByPartDb.close();
shipmentBySupplierDb.close();
partDb.close();
supplierDb.close();
shipmentDb.close();
// And don't forget to close the catalog and the environment.
javaCatalog.close();
env.close();
}
/**
* Creates an instance of this class.
*
* @param env the Berkeley DB environment
* @param timeout the number of milliseconds the transaction should be allowed to run
* @throws IllegalArgumentException if timeout is less than {@code 1}
* @throws DbDatabaseException if an unexpected database problem occurs
*/
BdbTransaction(Environment env, long timeout) {
if (timeout <= 0) {
throw new IllegalArgumentException("Timeout must be greater than 0");
}
try {
txn = env.beginTransaction(null, null);
/* Avoid overflow -- BDB treats 0 as unlimited */
long timeoutMicros = (timeout < (Long.MAX_VALUE / 1000)) ? 1000 * timeout : 0;
txn.setTxnTimeout(timeoutMicros);
} catch (DatabaseException e) {
throw BdbEnvironment.convertException(e, false);
}
}
@Override
public void tearDown() {
try {
if (env != null) {
env.close();
}
} catch (Exception e) {
System.out.println("Ignored exception during tearDown: " + e);
} finally {
/* Ensure that GC can cleanup. */
env = null;
}
}
/** Closes the database. */
private void close() throws Exception {
if (catalog != null) {
catalog.close();
catalog = null;
}
if (db != null) {
db.close();
db = null;
}
if (env != null) {
env.close();
env = null;
}
}
private void run() throws DatabaseException {
Random rand = new Random();
/*
* Create a set of events. Each insertion is a separate, auto-commit
* transaction.
*/
System.out.println("-> Inserting 4 events");
eventByTime.put(new Event(makeDate(1), 100, "Company_A"));
eventByTime.put(new Event(makeDate(2), 2, "Company_B"));
eventByTime.put(new Event(makeDate(3), 20, "Company_C"));
eventByTime.put(new Event(makeDate(4), 40, "CompanyD"));
/* Load a whole set of events transactionally. */
Transaction txn = env.beginTransaction(null, null);
int maxPrice = 50;
System.out.println("-> Inserting some randomly generated events");
for (int i = 0; i < 25; i++) {
Event e = new Event(makeDate(rand.nextInt(365)), rand.nextInt(maxPrice), "Company_X");
if ((i % 2) == 0) {
e.addRep("Bob");
e.addRep("Nikunj");
} else {
e.addRep("Yongmin");
}
eventByTime.put(e);
}
txn.commitWriteNoSync();
/*
* Windows of events - display the events between June 1 and Aug 31
*/
System.out.println("\n-> Display the events between June 1 and Aug 31");
Date startDate = makeDate(Calendar.JUNE, 1);
Date endDate = makeDate(Calendar.AUGUST, 31);
EntityCursor<Event> eventWindow = eventByTime.entities(startDate, true, endDate, true);
printEvents(eventWindow);
/*
* Display all events, ordered by a secondary index on price.
*/
System.out.println("\n-> Display all events, ordered by price");
EntityCursor<Event> byPriceEvents = eventByPrice.entities();
printEvents(byPriceEvents);
}
synchronized void awaitNewmaster(Environment site, long deadline) throws Exception {
long now;
for (; ; ) {
ReplicationStats s = site.getReplicationStats(StatsConfig.DEFAULT);
// am I the master?
//
if (s.getEnvId() == s.getMaster()) {
break;
}
if ((now = System.currentTimeMillis()) >= deadline)
throw new Exception("aborted by timeout");
long waitTime = deadline - now;
wait(waitTime);
if (panic) throw new Exception("aborted by panic in DB");
}
}
@After
public void tearDown() {
try {
if (index1 != null) {
index1.close();
}
if (index2 != null) {
index2.close();
}
if (store1 != null) {
store1.close();
}
if (store2 != null) {
store2.close();
}
if (catalog != null) {
catalog.close();
}
if (env != null) {
env.close();
}
} catch (Exception e) {
System.out.println("Ignored exception during tearDown: " + e);
} finally {
/* Ensure that GC can cleanup. */
env = null;
testEnv = null;
catalog = null;
store1 = null;
store2 = null;
index1 = null;
index2 = null;
factory = null;
storeMap1 = null;
storeMap2 = null;
indexMap1 = null;
indexMap2 = null;
}
}
private void setTimeouts(Environment e) throws Exception {
e.setReplicationTimeout(ReplicationTimeoutType.ACK_TIMEOUT, 30000000);
}
private void close() throws DatabaseException {
store.close();
env.close();
}
public void run() {
String homedirName = baseDirName + threadNumber;
TestUtils.removeDir(homedirName);
try {
homedir = new File(homedirName);
homedir.mkdir();
} catch (Exception e) {
TestUtils.DEBUGOUT(
2, "Warning: initialization had a problem creating a clean directory.\n" + e);
}
try {
homedir = new File(homedirName);
} catch (NullPointerException npe) {
// can't really happen :)
}
TestUtils.DEBUGOUT(1, "Creating worker: " + threadNumber);
envConfig = new EnvironmentConfig();
envConfig.setErrorStream(TestUtils.getErrorStream());
envConfig.setErrorPrefix("RepmgrElectionTest test(" + threadNumber + ")");
envConfig.setAllowCreate(true);
envConfig.setRunRecovery(true);
envConfig.setThreaded(true);
envConfig.setInitializeLocking(true);
envConfig.setInitializeLogging(true);
envConfig.setInitializeCache(true);
envConfig.setTransactional(true);
envConfig.setTxnNoSync(true);
envConfig.setInitializeReplication(true);
envConfig.setVerboseReplication(false);
ReplicationManagerSiteConfig localConfig =
new ReplicationManagerSiteConfig(address, basePort + threadNumber);
localConfig.setLocalSite(true);
envConfig.addReplicationManagerSite(localConfig);
envConfig.setReplicationPriority(priorities[threadNumber]);
envConfig.setEventHandler(this);
envConfig.setReplicationManagerAckPolicy(ReplicationManagerAckPolicy.ALL);
if (masterThreadIndex >= 0) {
// If we already have the master, then set it as the bootstrap helper,
// otherwise, set local site as new master.
ReplicationManagerSiteConfig remoteConfig =
new ReplicationManagerSiteConfig(address, basePort + masterThreadIndex);
remoteConfig.setBootstrapHelper(true);
envConfig.addReplicationManagerSite(remoteConfig);
}
try {
dbenv = new Environment(homedir, envConfig);
} catch (FileNotFoundException e) {
fail("Unexpected FNFE in standard environment creation." + e);
} catch (DatabaseException dbe) {
fail("Unexpected database exception came from environment create." + dbe);
}
try {
// If we do not have master, then set local site as new master.
if (masterThreadIndex == -1)
dbenv.replicationManagerStart(NUM_WORKER_THREADS, ReplicationManagerStartPolicy.REP_MASTER);
else
dbenv.replicationManagerStart(NUM_WORKER_THREADS, ReplicationManagerStartPolicy.REP_CLIENT);
} catch (DatabaseException dbe) {
fail("Unexpected database exception came from replicationManagerStart." + dbe);
}
TestUtils.DEBUGOUT(1, "Started replication site: " + threadNumber);
lastSiteStarted = true;
try {
java.lang.Thread.sleep(1000 * (1 + threadNumber));
} catch (InterruptedException ie) {
}
if (masterThreadIndex != -1) {
// Wait for "Start-up done" for each client, then add next client.
ReplicationStats rs = null;
int i = 0;
do {
try {
java.lang.Thread.sleep(2000);
} catch (InterruptedException e) {
}
try {
rs = dbenv.getReplicationStats(StatsConfig.DEFAULT);
} catch (DatabaseException dbe) {
dbe.printStackTrace();
fail("Unexpected database exception came from getReplicationStats." + dbe);
}
} while (!rs.getStartupComplete() && i++ < maxLoopWait);
assertTrue(rs.getStartupComplete());
}
}
/** Passively waits to be chosen as new master in an election. */
public void becomeMaster(int siteId) throws Exception {
Environment site = envs[siteId];
MyEventHandler monitor = (MyEventHandler) site.getConfig().getEventHandler();
long deadline = System.currentTimeMillis() + 5000;
monitor.awaitNewmaster(site, deadline);
}
ObjectStore(
String facet,
String facetType,
boolean createDb,
EvictorI evictor,
java.util.List<Index> indices,
boolean populateEmptyIndices) {
_cache = new Cache(this);
_facet = facet;
_evictor = evictor;
_indices = indices;
_communicator = evictor.communicator();
_encoding = evictor.encoding();
_keepStats = false;
if (facet.equals("")) {
_dbName = EvictorI.defaultDb;
} else {
_dbName = facet;
}
if (facetType != null) {
//
// Create a sample servant with this type
//
Ice.ValueFactory factory = _communicator.getValueFactoryManager().find(facetType);
if (factory == null) {
throw new DatabaseException(
_evictor.errorPrefix() + "No value factory registered for type-id '" + facetType + "'");
}
_sampleServant = factory.create(facetType);
}
Connection connection = Util.createConnection(_communicator, evictor.dbEnv().getEnvName());
try {
Catalog catalog = new Catalog(connection, Util.catalogName(), true);
CatalogData catalogData = catalog.get(evictor.filename());
if (catalogData != null) {
if (catalogData.evictor) {
_keepStats = catalogData.value.isEmpty();
} else {
DatabaseException ex = new DatabaseException();
ex.message = _evictor.errorPrefix() + evictor.filename() + " is not an evictor database";
throw ex;
}
}
com.sleepycat.db.Environment dbEnv = evictor.dbEnv().getEnv();
//
// TODO: FREEZE_DB_MODE
//
com.sleepycat.db.DatabaseConfig config = new com.sleepycat.db.DatabaseConfig();
config.setType(com.sleepycat.db.DatabaseType.BTREE);
config.setAllowCreate(createDb);
Ice.Properties properties = _evictor.communicator().getProperties();
String propPrefix = "Freeze.Evictor." + _evictor.filename() + ".";
int btreeMinKey = properties.getPropertyAsInt(propPrefix + _dbName + ".BtreeMinKey");
if (btreeMinKey > 2) {
if (_evictor.trace() >= 1) {
_evictor
.communicator()
.getLogger()
.trace(
"Freeze.Evictor",
"Setting \""
+ _evictor.filename()
+ "."
+ _dbName
+ "\"'s btree minkey to "
+ btreeMinKey);
}
config.setBtreeMinKey(btreeMinKey);
}
boolean checksum = properties.getPropertyAsInt(propPrefix + "Checksum") > 0;
if (checksum) {
if (_evictor.trace() >= 1) {
_evictor
.communicator()
.getLogger()
.trace("Freeze.Evictor", "Turning checksum on for \"" + _evictor.filename() + "\"");
}
config.setChecksum(true);
}
int pageSize = properties.getPropertyAsInt(propPrefix + "PageSize");
if (pageSize > 0) {
if (_evictor.trace() >= 1) {
_evictor
.communicator()
.getLogger()
.trace(
"Freeze.Evictor",
"Setting \"" + _evictor.filename() + "\"'s pagesize to " + pageSize);
}
config.setPageSize(pageSize);
}
try {
Transaction tx = connection.beginTransaction();
com.sleepycat.db.Transaction txn = Util.getTxn(tx);
_db = dbEnv.openDatabase(txn, evictor.filename(), _dbName, config);
for (Index index : _indices) {
index.associate(this, txn, createDb, populateEmptyIndices);
}
if (catalogData == null) {
catalogData = new CatalogData(true, "::Ice::Identity", "Object");
catalog.put(evictor.filename(), catalogData);
}
tx.commit();
} catch (java.io.FileNotFoundException dx) {
throw new NotFoundException(_evictor.errorPrefix() + "Db.open: " + dx.getMessage(), dx);
} catch (com.sleepycat.db.DatabaseException dx) {
throw new DatabaseException(_evictor.errorPrefix() + "Db.open: " + dx.getMessage(), dx);
} finally {
Transaction tx = connection.currentTransaction();
if (tx != null) {
try {
tx.rollback();
} catch (DatabaseException de) {
}
}
}
} finally {
connection.close();
}
}
protected Ice.Identity[] untypedFindFirst(byte[] k, int firstN) {
EvictorI.DeactivateController deactivateController = _store.evictor().deactivateController();
deactivateController.lock();
try {
com.sleepycat.db.DatabaseEntry key = new com.sleepycat.db.DatabaseEntry(k);
//
// When we have a custom-comparison function, Berkeley DB returns
// the key on-disk (when it finds one). We disable this behavior:
// (ref Oracle SR 5925672.992)
//
// In DB > 5.1.x we can not set DB_DBT_PARTIAL in the key Dbt when calling
// getSearchKey.
//
if (com.sleepycat.db.Environment.getVersionMajor() < 5
|| (com.sleepycat.db.Environment.getVersionMajor() == 5
&& com.sleepycat.db.Environment.getVersionMinor() <= 1)) {
key.setPartial(true);
}
com.sleepycat.db.DatabaseEntry pkey = new com.sleepycat.db.DatabaseEntry();
com.sleepycat.db.DatabaseEntry value = new com.sleepycat.db.DatabaseEntry();
//
// dlen is 0, so we should not retrieve any value
//
value.setPartial(true);
Ice.Communicator communicator = _store.communicator();
Ice.EncodingVersion encoding = _store.encoding();
TransactionI transaction = _store.evictor().beforeQuery();
com.sleepycat.db.Transaction tx = transaction == null ? null : transaction.dbTxn();
java.util.List<Ice.Identity> identities;
for (; ; ) {
com.sleepycat.db.SecondaryCursor dbc = null;
identities = new java.util.ArrayList<Ice.Identity>();
try {
//
// Move to the first record
//
dbc = _db.openSecondaryCursor(tx, null);
boolean first = true;
boolean found;
do {
com.sleepycat.db.OperationStatus status;
if (first) {
status = dbc.getSearchKey(key, pkey, value, null);
} else {
status = dbc.getNextDup(key, pkey, value, null);
}
found = status == com.sleepycat.db.OperationStatus.SUCCESS;
if (found) {
Ice.Identity ident = ObjectStore.unmarshalKey(pkey, communicator, encoding);
identities.add(ident);
first = false;
}
} while ((firstN <= 0 || identities.size() < firstN) && found);
break; // for(;;)
} catch (com.sleepycat.db.DeadlockException dx) {
if (_store.evictor().deadlockWarning()) {
communicator
.getLogger()
.warning(
"Deadlock in Freeze.Index.untypedFindFirst while "
+ "iterating over Db \""
+ _store.evictor().filename()
+ "/"
+ _dbName
+ "\"");
}
if (tx != null) {
throw new DeadlockException(
_store.evictor().errorPrefix() + "Db.cursor: " + dx.getMessage(), transaction, dx);
}
//
// Otherwise retry
//
} catch (com.sleepycat.db.DatabaseException dx) {
throw new DatabaseException(
_store.evictor().errorPrefix() + "Db.cursor: " + dx.getMessage(), dx);
} finally {
if (dbc != null) {
try {
dbc.close();
} catch (com.sleepycat.db.DeadlockException dx) {
if (tx != null) {
throw new DeadlockException(
_store.evictor().errorPrefix() + "Db.cursor: " + dx.getMessage(),
transaction,
dx);
}
} catch (com.sleepycat.db.DatabaseException dx) {
//
// Ignored
//
}
}
}
}
if (identities.size() != 0) {
Ice.Identity[] result = new Ice.Identity[identities.size()];
return identities.toArray(result);
} else {
return new Ice.Identity[0];
}
} finally {
deactivateController.unlock();
}
}
protected int untypedCount(byte[] k) {
EvictorI.DeactivateController deactivateController = _store.evictor().deactivateController();
deactivateController.lock();
try {
com.sleepycat.db.DatabaseEntry key = new com.sleepycat.db.DatabaseEntry(k);
//
// When we have a custom-comparison function, Berkeley DB returns
// the key on-disk (when it finds one). We disable this behavior:
// (ref Oracle SR 5925672.992)
//
// In DB > 5.1.x we can not set DB_DBT_PARTIAL in the key Dbt when calling
// getSearchKey.
//
if (com.sleepycat.db.Environment.getVersionMajor() < 5
|| (com.sleepycat.db.Environment.getVersionMajor() == 5
&& com.sleepycat.db.Environment.getVersionMinor() <= 1)) {
key.setPartial(true);
}
com.sleepycat.db.DatabaseEntry value = new com.sleepycat.db.DatabaseEntry();
//
// dlen is 0, so we should not retrieve any value
//
value.setPartial(true);
TransactionI transaction = _store.evictor().beforeQuery();
com.sleepycat.db.Transaction tx = transaction == null ? null : transaction.dbTxn();
for (; ; ) {
com.sleepycat.db.Cursor dbc = null;
try {
dbc = _db.openCursor(tx, null);
if (dbc.getSearchKey(key, value, null) == com.sleepycat.db.OperationStatus.SUCCESS) {
return dbc.count();
} else {
return 0;
}
} catch (com.sleepycat.db.DeadlockException dx) {
if (_store.evictor().deadlockWarning()) {
_store
.communicator()
.getLogger()
.warning(
"Deadlock in Freeze.Index.untypedCount while "
+ "iterating over Db \""
+ _store.evictor().filename()
+ "/"
+ _dbName
+ "\"");
}
if (tx != null) {
throw new DeadlockException(
_store.evictor().errorPrefix() + "Db.cursor: " + dx.getMessage(), transaction, dx);
}
//
// Otherwise retry
//
} catch (com.sleepycat.db.DatabaseException dx) {
throw new DatabaseException(
_store.evictor().errorPrefix() + "Db.cursor: " + dx.getMessage(), dx);
} finally {
if (dbc != null) {
try {
dbc.close();
} catch (com.sleepycat.db.DeadlockException dx) {
if (tx != null) {
throw new DeadlockException(
_store.evictor().errorPrefix() + "Db.cursor: " + dx.getMessage(),
transaction,
dx);
}
} catch (com.sleepycat.db.DatabaseException dx) {
//
// Ignored
//
}
}
}
}
} finally {
deactivateController.unlock();
}
}
//
// Initialize the database to the number of accounts, branches,
// history records, and tellers given to the constructor.
//
public void populate() {
Database dbp = null;
int err;
int balance, idnum;
int end_anum, end_bnum, end_tnum;
int start_anum, start_bnum, start_tnum;
int h_nelem;
idnum = BEGID;
balance = 500000;
h_nelem = accounts;
try {
DatabaseConfig config = new DatabaseConfig();
config.setType(DatabaseType.HASH);
config.setHashNumElements(h_nelem);
config.setAllowCreate(true);
dbp = dbenv.openDatabase(null, "account", null, config);
} catch (Exception e1) {
// can be DatabaseException or FileNotFoundException
errExit(e1, "Open of account file failed");
}
start_anum = idnum;
populateTable(dbp, idnum, balance, h_nelem, "account");
idnum += h_nelem;
end_anum = idnum - 1;
try {
dbp.close();
} catch (DatabaseException e2) {
errExit(e2, "Account file close failed");
}
if (verbose)
System.out.println(
"Populated accounts: " + String.valueOf(start_anum) + " - " + String.valueOf(end_anum));
//
// Since the number of branches is very small, we want to use very
// small pages and only 1 key per page. This is the poor-man's way
// of getting key locking instead of page locking.
//
h_nelem = (int) branches;
try {
DatabaseConfig config = new DatabaseConfig();
config.setType(DatabaseType.HASH);
config.setHashNumElements(h_nelem);
config.setHashFillFactor(1);
config.setPageSize(512);
config.setAllowCreate(true);
dbp = dbenv.openDatabase(null, "branch", null, config);
} catch (Exception e3) {
// can be DatabaseException or FileNotFoundException
errExit(e3, "Branch file create failed");
}
start_bnum = idnum;
populateTable(dbp, idnum, balance, h_nelem, "branch");
idnum += h_nelem;
end_bnum = idnum - 1;
try {
dbp.close();
} catch (DatabaseException dbe4) {
errExit(dbe4, "Close of branch file failed");
}
if (verbose)
System.out.println(
"Populated branches: " + String.valueOf(start_bnum) + " - " + String.valueOf(end_bnum));
//
// In the case of tellers, we also want small pages, but we'll let
// the fill factor dynamically adjust itself.
//
h_nelem = (int) tellers;
try {
DatabaseConfig config = new DatabaseConfig();
config.setType(DatabaseType.HASH);
config.setHashNumElements(h_nelem);
config.setHashFillFactor(0);
config.setPageSize(512);
config.setAllowCreate(true);
dbp = dbenv.openDatabase(null, "teller", null, config);
} catch (Exception e5) {
// can be DatabaseException or FileNotFoundException
errExit(e5, "Teller file create failed");
}
start_tnum = idnum;
populateTable(dbp, idnum, balance, h_nelem, "teller");
idnum += h_nelem;
end_tnum = idnum - 1;
try {
dbp.close();
} catch (DatabaseException e6) {
errExit(e6, "Close of teller file failed");
}
if (verbose)
System.out.println(
"Populated tellers: " + String.valueOf(start_tnum) + " - " + String.valueOf(end_tnum));
try {
DatabaseConfig config = new DatabaseConfig();
config.setType(DatabaseType.RECNO);
config.setRecordLength(HISTORY_LEN);
config.setAllowCreate(true);
dbp = dbenv.openDatabase(null, "history", null, config);
} catch (Exception e7) {
// can be DatabaseException or FileNotFoundException
errExit(e7, "Create of history file failed");
}
populateHistory(dbp);
try {
dbp.close();
} catch (DatabaseException e8) {
errExit(e8, "Close of history file failed");
}
}
/** Open all storage containers, indices, and catalogs. */
public SampleDatabase(String homeDirectory) throws DatabaseException, FileNotFoundException {
// Open the Berkeley DB environment in transactional mode.
//
System.out.println("Opening environment in: " + homeDirectory);
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setTransactional(true);
envConfig.setAllowCreate(true);
envConfig.setInitializeCache(true);
envConfig.setInitializeLocking(true);
env = new Environment(new File(homeDirectory), envConfig);
// Set the Berkeley DB config for opening all stores.
//
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setTransactional(true);
dbConfig.setAllowCreate(true);
dbConfig.setType(DatabaseType.BTREE);
// Create the Serial class catalog. This holds the serialized class
// format for all database records of serial format.
//
Database catalogDb = env.openDatabase(null, CLASS_CATALOG, null, dbConfig);
javaCatalog = new StoredClassCatalog(catalogDb);
// Open the Berkeley DB database for the part, supplier and shipment
// stores. The stores are opened with no duplicate keys allowed.
//
partDb = env.openDatabase(null, PART_STORE, null, dbConfig);
supplierDb = env.openDatabase(null, SUPPLIER_STORE, null, dbConfig);
shipmentDb = env.openDatabase(null, SHIPMENT_STORE, null, dbConfig);
// Open the SecondaryDatabase for the city index of the supplier store,
// and for the part and supplier indices of the shipment store.
// Duplicate keys are allowed since more than one supplier may be in
// the same city, and more than one shipment may exist for the same
// supplier or part. A foreign key constraint is defined for the
// supplier and part indices to ensure that a shipment only refers to
// existing part and supplier keys. The CASCADE delete action means
// that shipments will be deleted if their associated part or supplier
// is deleted.
//
SecondaryConfig secConfig = new SecondaryConfig();
secConfig.setTransactional(true);
secConfig.setAllowCreate(true);
secConfig.setType(DatabaseType.BTREE);
secConfig.setSortedDuplicates(true);
secConfig.setKeyCreator(
new SupplierByCityKeyCreator(
javaCatalog, SupplierKey.class, SupplierData.class, String.class));
supplierByCityDb =
env.openSecondaryDatabase(null, SUPPLIER_CITY_INDEX, null, supplierDb, secConfig);
secConfig.setForeignKeyDatabase(partDb);
secConfig.setForeignKeyDeleteAction(ForeignKeyDeleteAction.CASCADE);
secConfig.setKeyCreator(
new ShipmentByPartKeyCreator(
javaCatalog, ShipmentKey.class, ShipmentData.class, PartKey.class));
shipmentByPartDb =
env.openSecondaryDatabase(null, SHIPMENT_PART_INDEX, null, shipmentDb, secConfig);
secConfig.setForeignKeyDatabase(supplierDb);
secConfig.setForeignKeyDeleteAction(ForeignKeyDeleteAction.CASCADE);
secConfig.setKeyCreator(
new ShipmentBySupplierKeyCreator(
javaCatalog, ShipmentKey.class, ShipmentData.class, SupplierKey.class));
shipmentBySupplierDb =
env.openSecondaryDatabase(null, SHIPMENT_SUPPLIER_INDEX, null, shipmentDb, secConfig);
}
@Test
public void testDraining() throws Exception {
EnvironmentConfig masterConfig = makeBasicConfig();
masterConfig.setReplicationLimit(100000000);
ReplicationManagerSiteConfig site = new ReplicationManagerSiteConfig("localhost", masterPort);
site.setLocalSite(true);
site.setLegacy(true);
masterConfig.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", clientPort);
site.setLegacy(true);
masterConfig.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", client2Port);
site.setLegacy(true);
masterConfig.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", client3Port);
site.setLegacy(true);
masterConfig.addReplicationManagerSite(site);
Environment master = new Environment(mkdir("master"), masterConfig);
setTimeouts(master);
// Prevent connection retries, so that all connections
// originate from clients
master.setReplicationTimeout(ReplicationTimeoutType.CONNECTION_RETRY, Integer.MAX_VALUE);
master.replicationManagerStart(2, ReplicationManagerStartPolicy.REP_MASTER);
DatabaseConfig dc = new DatabaseConfig();
dc.setTransactional(true);
dc.setAllowCreate(true);
dc.setType(DatabaseType.BTREE);
dc.setPageSize(4096);
Database db = master.openDatabase(null, "test.db", null, dc);
DatabaseEntry key = new DatabaseEntry();
DatabaseEntry value = new DatabaseEntry();
value.setData(data);
for (int i = 0; ((BtreeStats) db.getStats(null, null)).getPageCount() < 500; i++) {
String k = "The record number is: " + i;
key.setData(k.getBytes());
db.put(null, key, value);
}
// tell fiddler to stop reading once it sees a PAGE message
Socket s = new Socket("localhost", mgrPort);
OutputStreamWriter w = new OutputStreamWriter(s.getOutputStream());
String path1 = "{" + masterPort + "," + clientPort + "}"; // looks like {6000,6001}
w.write("{init," + path1 + ",page_clog}\r\n");
w.flush();
BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
br.readLine();
assertEquals("ok", br.readLine());
// create client
//
EnvironmentConfig ec = makeBasicConfig();
site = new ReplicationManagerSiteConfig("localhost", clientPort);
site.setLocalSite(true);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", masterPort);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", client2Port);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", client3Port);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
Environment client = new Environment(mkdir("client"), ec);
setTimeouts(client);
client.replicationManagerStart(1, ReplicationManagerStartPolicy.REP_CLIENT);
// wait til it gets stuck
Thread.sleep(5000); // FIXME
// Do the same for another client, because the master has 2
// msg processing threads. (It's no longer possible to
// configure just 1.)
String path2 = "{" + masterPort + "," + client2Port + "}";
w.write("{init," + path2 + ",page_clog}\r\n");
w.flush();
br = new BufferedReader(new InputStreamReader(s.getInputStream()));
br.readLine();
assertEquals("ok", br.readLine());
ec = makeBasicConfig();
site = new ReplicationManagerSiteConfig("localhost", client2Port);
site.setLocalSite(true);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", masterPort);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", clientPort);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", client3Port);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
Environment client2 = new Environment(mkdir("client2"), ec);
setTimeouts(client2);
client2.replicationManagerStart(1, ReplicationManagerStartPolicy.REP_CLIENT);
// wait til it gets stuck
Thread.sleep(5000);
// With the connection stuck, the master cannot write out log
// records for new "live" transactions. Knowing we didn't
// write the record, we should not bother waiting for an ack
// that cannot possibly arrive; so we should simply return
// quickly. The duration should be very quick, but anything
// less than the ack timeout indicates correct behavior (in
// case this test runs on a slow, overloaded system).
//
long startTime = System.currentTimeMillis();
key.setData("one extra record".getBytes());
db.put(null, key, value);
long duration = System.currentTimeMillis() - startTime;
assertTrue("txn duration: " + duration, duration < 29000);
System.out.println("txn duration: " + duration);
db.close();
// Tell fiddler to close the connections. That should trigger
// us to abandon the timeout. Then create another client and
// see that it can complete its internal init quickly. Since
// we have limited threads at the master, this demonstrates
// that they were abandoned.
//
path1 = "{" + clientPort + "," + masterPort + "}"; // looks like {6001,6000}
w.write("{" + path1 + ",shutdown}\r\n");
w.flush();
assertEquals("ok", br.readLine());
path2 = "{" + client2Port + "," + masterPort + "}"; // looks like {6001,6000}
w.write("{" + path2 + ",shutdown}\r\n");
w.flush();
assertEquals("ok", br.readLine());
ec = makeBasicConfig();
site = new ReplicationManagerSiteConfig("localhost", client3Port);
site.setLocalSite(true);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", masterPort);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", clientPort);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
site = new ReplicationManagerSiteConfig("localhost", client2Port);
site.setLegacy(true);
ec.addReplicationManagerSite(site);
EventHandler clientMonitor = new EventHandler();
ec.setEventHandler(clientMonitor);
Environment client3 = new Environment(mkdir("client3"), ec);
setTimeouts(client3);
startTime = System.currentTimeMillis();
client3.replicationManagerStart(2, ReplicationManagerStartPolicy.REP_CLIENT);
clientMonitor.await();
duration = System.currentTimeMillis() - startTime;
assertTrue("sync duration: " + duration, duration < 20000); // 20 seconds should be plenty
client3.close();
master.close();
w.write("shutdown\r\n");
w.flush();
assertEquals("ok", br.readLine());
s.close();
}