/*
* Test the API: RepImpl.setBackupProhibited would disable the DbBackup in
* DbBackup.startBackup, may be caused by Replay.rollback().
*/
@Test
public void testRollingBackDbBackupAPI() throws Throwable {
RepEnvInfo[] repEnvInfo = RepTestUtils.setupEnvInfos(envRoot, 1);
ReplicatedEnvironment master = RepTestUtils.joinGroup(repEnvInfo);
RepImpl repImpl = RepInternal.getRepImpl(master);
DbBackup backupHelper = new DbBackup(master);
repImpl.setBackupProhibited(true);
try {
backupHelper.startBackup();
fail("Should throw out a LogOverwriteException here.");
} catch (LogOverwriteException e) {
/* Expect a LogOverwriteException here. */
}
repImpl.setBackupProhibited(false);
try {
backupHelper.startBackup();
backupHelper.endBackup();
} catch (Exception e) {
fail("Shouldn't get an exception here.");
} finally {
RepTestUtils.shutdownRepEnvs(repEnvInfo);
}
}
public void run() {
try {
/* Get FileLocks. */
FileChannel channel = lockFile.getChannel();
FileLock lockA = channel.lock(1, 1, false);
FileLock lockC = channel.lock(3, 1, false);
ReplicatedEnvironment master = getMaster();
doWork(master, dbName, 1);
/* Release lock A so that read process can do reads. */
lockA.release();
/* Make sure read process get lock B before this process. */
Thread.sleep(sleepTime);
/* Get lock B means read process finish reading, do updates. */
FileLock lockB = getLockWithReTry(channel, 2, 1);
doWork(master, dbName, 101);
/* Release lock B and lock C. */
lockB.release();
lockC.release();
} catch (Exception e) {
/* Dump exceptions and exit with value 6. */
e.printStackTrace();
System.exit(7);
} finally {
RepTestUtils.shutdownRepEnvs(repEnvInfo);
closeLockFile(lockFile);
}
}
private void doReplicaHasGapNetworkRestore(boolean multiGaps) throws Throwable {
Durability noAck =
new Durability(SyncPolicy.NO_SYNC, SyncPolicy.NO_SYNC, ReplicaAckPolicy.NONE);
db = null;
try {
Environment master = setupLogWithCleanedGaps(multiGaps);
int masterIdx = findMasterIndex(master);
/*
* Write a record, so that we are sure that there will be a
* network restore, because we have to cross a checkpoint.
*/
generateData(master, 1, noAck, false);
CheckpointConfig cc = new CheckpointConfig();
master.checkpoint(cc);
EnvironmentStats stats = master.getStats(clearConfig);
assertEquals(0, stats.getCleanerBacklog());
if (multiGaps) {
logger.info("Multigap: deletion backlog = " + stats.getFileDeletionBacklog());
} else {
assertEquals(0, stats.getFileDeletionBacklog());
}
db.close();
db = null;
repEnvInfo[masterIdx].closeEnv();
/* Start up the two replicas */
openReplicas(masterIdx);
/* Start the node that had been the master */
try {
repEnvInfo[masterIdx].openEnv();
fail("Should be a network restore");
} catch (InsufficientLogException ile) {
repEnvInfo[masterIdx].closeEnv();
NetworkRestore restore = new NetworkRestore();
NetworkRestoreConfig config = new NetworkRestoreConfig();
config.setRetainLogFiles(true);
restore.execute(ile, config);
repEnvInfo[masterIdx].openEnv();
}
/* Check its last VLSN and size. */
} catch (Throwable t) {
t.printStackTrace();
throw t;
} finally {
if (db != null) {
db.close();
}
RepTestUtils.shutdownRepEnvs(repEnvInfo);
}
}
/*
* Test the API: RepImpl.invalidateDbBackups would disable the DbBackup
* at endBackup, may be caused by Replay.rollback().
*/
@Test
public void testRollBackInvalidateDbBackup() throws Exception {
RepEnvInfo[] repEnvInfo = RepTestUtils.setupEnvInfos(envRoot, 1);
ReplicatedEnvironment master = RepTestUtils.joinGroup(repEnvInfo);
final RepImpl repImpl = RepInternal.getRepImpl(master);
DbBackup backupHelper = new DbBackup(master);
backupHelper.startBackup();
backupHelper.setTestHook(
new TestHook<Object>() {
public void doHook() {
repImpl.invalidateBackups(8L);
}
public Object getHookValue() {
throw new UnsupportedOperationException();
}
public void doIOHook() {
throw new UnsupportedOperationException();
}
public void hookSetup() {
throw new UnsupportedOperationException();
}
public void doHook(Object obj) {
throw new UnsupportedOperationException();
}
});
try {
backupHelper.endBackup();
fail("Should throw out a LogOverwriteException here.");
} catch (LogOverwriteException e) {
/* Expect to get a LogOverwriteException here. */
} finally {
RepTestUtils.shutdownRepEnvs(repEnvInfo);
}
}
/**
* On the master, generate a log that has section A: a lot of records packed together section B: a
* lot of junk that gets cleaned away, creating a gap in the log section C: a new section of data
*
* <p>Bring the replicas down after A is replicated, but before C is written. When the replicas
* come up, they will have to be fed by the feeder from point A.
*/
@Test
public void testFeederHasGap() throws Throwable {
Durability noAck =
new Durability(SyncPolicy.NO_SYNC, SyncPolicy.NO_SYNC, ReplicaAckPolicy.NONE);
db = null;
try {
Environment master = setupLogWithCleanedGaps(false);
int masterIdx = findMasterIndex(master);
/*
* Write a single record, and then junk, so that we are sure there
* is a new VLSN, and that the replicas will have to sync up to
* this point, across the gap of cleaned junk.
*/
generateData(master, 1, noAck, false);
EnvironmentStats stats = master.getStats(clearConfig);
assertEquals(0, stats.getCleanerBacklog());
assertEquals(0, stats.getFileDeletionBacklog());
/* Start up the two replicas */
for (int i = 0; i < repEnvInfo.length; i++) {
if (i != masterIdx) {
repEnvInfo[i].openEnv();
/* make sure we have up to date data */
readData(repEnvInfo[i].getEnv(), 50);
}
}
} catch (Throwable t) {
t.printStackTrace();
throw t;
} finally {
if (db != null) {
db.close();
}
RepTestUtils.shutdownRepEnvs(repEnvInfo);
}
}
private void close(boolean normalShutdown) {
try {
if (normalShutdown) {
replicaApp1.close();
replicaApp2.close();
masterApp.close();
RepTestUtils.shutdownRepEnvs(repEnvInfo);
} else {
for (RepEnvInfo info : repEnvInfo) {
info.abnormalCloseEnv();
}
}
} finally {
repEnvInfo = null;
masterEnv = null;
replicaEnv1 = null;
replicaEnv2 = null;
masterApp = null;
replicaApp1 = null;
replicaApp2 = null;
}
}
@Test
public void testReplicaHasGap() throws Throwable {
db = null;
try {
Environment master = setupLogWithCleanedGaps(false);
int masterIdx = findMasterIndex(master);
db.close();
db = null;
repEnvInfo[masterIdx].closeEnv();
/* Start up the two replicas */
openReplicas(masterIdx);
/* Start the master */
try {
repEnvInfo[masterIdx].openEnv();
} catch (InsufficientLogException ile) {
repEnvInfo[masterIdx].closeEnv();
NetworkRestore restore = new NetworkRestore();
NetworkRestoreConfig config = new NetworkRestoreConfig();
config.setRetainLogFiles(true);
restore.execute(ile, config);
repEnvInfo[masterIdx].openEnv();
}
} catch (Throwable t) {
t.printStackTrace();
throw t;
} finally {
if (db != null) {
db.close();
}
RepTestUtils.shutdownRepEnvs(repEnvInfo);
}
}
/** Test the basic configuration of LogFlusher. */
@Test
public void testBasicConfig() throws Throwable {
try {
EnvironmentConfig envConfig = RepTestUtils.createEnvConfig(Durability.COMMIT_NO_SYNC);
ReplicationConfig repConfig = new ReplicationConfig();
repConfig.setConfigParam(ReplicationMutableConfig.LOG_FLUSH_TASK_INTERVAL, "30 s");
repEnvInfo = RepTestUtils.setupEnvInfos(envRoot, 3, envConfig, repConfig);
RepTestUtils.joinGroup(repEnvInfo);
assertTrue(repEnvInfo[0].isMaster());
/* Check the LogFlusher configuration. */
TimerTask[] oldTasks = new TimerTask[repEnvInfo.length];
for (int i = 0; i < repEnvInfo.length; i++) {
LogFlusher flusher = repEnvInfo[i].getRepNode().getLogFlusher();
oldTasks[i] = flusher.getFlushTask();
assertTrue(flusher != null);
assertTrue(flusher.getFlushTask() != null);
assertTrue(flusher.getFlushInterval() == 30000);
}
/* Check that those configuratins are mutable. */
repConfig.setConfigParam(ReplicationMutableConfig.LOG_FLUSH_TASK_INTERVAL, "50 s");
for (int i = 0; i < repEnvInfo.length; i++) {
repEnvInfo[i].getEnv().setRepMutableConfig(repConfig);
}
for (int i = 0; i < repEnvInfo.length; i++) {
LogFlusher flusher = repEnvInfo[i].getRepNode().getLogFlusher();
assertTrue(flusher != null);
assertTrue(flusher.getFlushTask() != null);
assertTrue(flusher.getFlushTask() != oldTasks[i]);
assertTrue(flusher.getFlushInterval() == 50000);
}
repConfig.setConfigParam(ReplicationMutableConfig.RUN_LOG_FLUSH_TASK, "false");
for (int i = 0; i < repEnvInfo.length; i++) {
repEnvInfo[i].getEnv().setRepMutableConfig(repConfig);
}
for (int i = 0; i < repEnvInfo.length; i++) {
LogFlusher flusher = repEnvInfo[i].getRepNode().getLogFlusher();
assertTrue(flusher != null);
assertTrue(flusher.getFlushTask() == null);
}
RepTestUtils.shutdownRepEnvs(repEnvInfo);
RepTestUtils.removeRepEnvironments(envRoot);
repConfig.setConfigParam(ReplicationConfig.RUN_LOG_FLUSH_TASK, "false");
repEnvInfo = RepTestUtils.setupEnvInfos(envRoot, 3, envConfig, repConfig);
RepTestUtils.joinGroup(repEnvInfo);
/* Check that the task is disabled. */
for (int i = 0; i < repEnvInfo.length; i++) {
assertTrue(repEnvInfo[i].getRepNode().getLogFlusher() == null);
}
} catch (Throwable t) {
t.printStackTrace();
throw t;
} finally {
RepTestUtils.shutdownRepEnvs(repEnvInfo);
}
}
private void closeGroup() {
store.close();
RepTestUtils.shutdownRepEnvs(repEnvInfo);
}