private void createBackgroundOperationPool() {
int poolSize = hiveConf.getIntVar(ConfVars.HIVE_SERVER2_ASYNC_EXEC_THREADS);
LOG.info("HiveServer2: Background operation thread pool size: " + poolSize);
int poolQueueSize = hiveConf.getIntVar(ConfVars.HIVE_SERVER2_ASYNC_EXEC_WAIT_QUEUE_SIZE);
LOG.info("HiveServer2: Background operation thread wait queue size: " + poolQueueSize);
long keepAliveTime =
HiveConf.getTimeVar(
hiveConf, ConfVars.HIVE_SERVER2_ASYNC_EXEC_KEEPALIVE_TIME, TimeUnit.SECONDS);
LOG.info(
"HiveServer2: Background operation thread keepalive time: " + keepAliveTime + " seconds");
// Create a thread pool with #poolSize threads
// Threads terminate when they are idle for more than the keepAliveTime
// A bounded blocking queue is used to queue incoming operations, if #operations > poolSize
String threadPoolName = "HiveServer2-Background-Pool";
backgroundOperationPool =
new ThreadPoolExecutor(
poolSize,
poolSize,
keepAliveTime,
TimeUnit.SECONDS,
new LinkedBlockingQueue<Runnable>(poolQueueSize),
new ThreadFactoryWithGarbageCleanup(threadPoolName));
backgroundOperationPool.allowCoreThreadTimeOut(true);
checkInterval =
HiveConf.getTimeVar(
hiveConf, ConfVars.HIVE_SERVER2_SESSION_CHECK_INTERVAL, TimeUnit.MILLISECONDS);
sessionTimeout =
HiveConf.getTimeVar(
hiveConf, ConfVars.HIVE_SERVER2_IDLE_SESSION_TIMEOUT, TimeUnit.MILLISECONDS);
}
public void preTest(HiveConf conf) throws Exception {
if (zooKeeperCluster == null) {
// create temp dir
String tmpBaseDir = System.getProperty("test.tmp.dir");
File tmpDir = Utilities.createTempDir(tmpBaseDir);
zooKeeperCluster = new MiniZooKeeperCluster();
zkPort = zooKeeperCluster.startup(tmpDir);
}
if (zooKeeper != null) {
zooKeeper.close();
}
int sessionTimeout =
(int)
conf.getTimeVar(
HiveConf.ConfVars.HIVE_ZOOKEEPER_SESSION_TIMEOUT, TimeUnit.MILLISECONDS);
zooKeeper =
new ZooKeeper(
"localhost:" + zkPort,
sessionTimeout,
new Watcher() {
@Override
public void process(WatchedEvent arg0) {}
});
String zkServer = "localhost";
conf.set("hive.zookeeper.quorum", zkServer);
conf.set("hive.zookeeper.client.port", "" + zkPort);
}
/**
* Send a heartbeat to the metastore for locks and transactions.
*
* @throws IOException
*/
public void heartbeat() throws IOException {
if (dontHeartbeat) return;
if (txnMgr == null) {
LOG.debug("txnMgr null, not heartbeating");
dontHeartbeat = true;
return;
}
if (heartbeatInterval == 0) {
// Multiply the heartbeat interval by 1000 to convert to milliseconds,
// but divide by 2 to give us a safety factor.
heartbeatInterval =
HiveConf.getTimeVar(conf, HiveConf.ConfVars.HIVE_TXN_TIMEOUT, TimeUnit.MILLISECONDS) / 2;
if (heartbeatInterval == 0) {
LOG.warn(
HiveConf.ConfVars.HIVE_TXN_MANAGER.toString() + " not set, heartbeats won't be sent");
dontHeartbeat = true;
LOG.debug("heartbeat interval 0, not heartbeating");
return;
}
}
long now = System.currentTimeMillis();
if (now - lastHeartbeat > heartbeatInterval) {
try {
LOG.debug("heartbeating");
txnMgr.heartbeat();
} catch (LockException e) {
LOG.warn("Failed trying to heartbeat " + e.getMessage());
throw new IOException(e);
}
lastHeartbeat = now;
}
}
public ThriftHttpServlet(
TProcessor processor,
TProtocolFactory protocolFactory,
String authType,
UserGroupInformation serviceUGI,
UserGroupInformation httpUGI,
HiveAuthFactory hiveAuthFactory) {
super(processor, protocolFactory);
this.authType = authType;
this.serviceUGI = serviceUGI;
this.httpUGI = httpUGI;
this.hiveAuthFactory = hiveAuthFactory;
this.isCookieAuthEnabled =
hiveConf.getBoolVar(ConfVars.HIVE_SERVER2_THRIFT_HTTP_COOKIE_AUTH_ENABLED);
// Initialize the cookie based authentication related variables.
if (isCookieAuthEnabled) {
// Generate the signer with secret.
String secret = Long.toString(RAN.nextLong());
LOG.debug("Using the random number as the secret for cookie generation " + secret);
this.signer = new CookieSigner(secret.getBytes());
this.cookieMaxAge =
(int)
hiveConf.getTimeVar(
ConfVars.HIVE_SERVER2_THRIFT_HTTP_COOKIE_MAX_AGE, TimeUnit.SECONDS);
this.cookieDomain = hiveConf.getVar(ConfVars.HIVE_SERVER2_THRIFT_HTTP_COOKIE_DOMAIN);
this.cookiePath = hiveConf.getVar(ConfVars.HIVE_SERVER2_THRIFT_HTTP_COOKIE_PATH);
// always send secure cookies for SSL mode
this.isCookieSecure = hiveConf.getBoolVar(ConfVars.HIVE_SERVER2_USE_SSL);
this.isHttpOnlyCookie =
hiveConf.getBoolVar(ConfVars.HIVE_SERVER2_THRIFT_HTTP_COOKIE_IS_HTTPONLY);
}
}
protected RawStoreProxy(
HiveConf hiveConf, Configuration conf, Class<? extends RawStore> rawStoreClass, int id)
throws MetaException {
this.conf = conf;
this.hiveConf = hiveConf;
this.socketTimeout =
HiveConf.getTimeVar(
hiveConf, HiveConf.ConfVars.METASTORE_CLIENT_SOCKET_TIMEOUT, TimeUnit.MILLISECONDS);
// This has to be called before initializing the instance of RawStore
init();
this.base = ReflectionUtils.newInstance(rawStoreClass, conf);
}
public QueryTracker(Configuration conf, String[] localDirsBase) {
super("QueryTracker");
this.localDirsBase = localDirsBase;
try {
localFs = FileSystem.getLocal(conf);
} catch (IOException e) {
throw new RuntimeException("Failed to setup local filesystem instance", e);
}
this.defaultDeleteDelaySeconds =
HiveConf.getTimeVar(conf, ConfVars.LLAP_FILE_CLEANUP_DELAY_SECONDS, TimeUnit.SECONDS);
int numCleanerThreads = HiveConf.getIntVar(conf, ConfVars.LLAP_DAEMON_NUM_FILE_CLEANER_THREADS);
this.executorService =
Executors.newScheduledThreadPool(
numCleanerThreads,
new ThreadFactoryBuilder()
.setDaemon(true)
.setNameFormat("QueryFileCleaner %d")
.build());
}
@Override
public synchronized void stop() {
super.stop();
shutdown = true;
if (backgroundOperationPool != null) {
backgroundOperationPool.shutdown();
long timeout =
hiveConf.getTimeVar(ConfVars.HIVE_SERVER2_ASYNC_EXEC_SHUTDOWN_TIMEOUT, TimeUnit.SECONDS);
try {
backgroundOperationPool.awaitTermination(timeout, TimeUnit.SECONDS);
} catch (InterruptedException e) {
LOG.warn(
"HIVE_SERVER2_ASYNC_EXEC_SHUTDOWN_TIMEOUT = "
+ timeout
+ " seconds has been exceeded. RUNNING background operations will be shut down",
e);
}
backgroundOperationPool = null;
}
cleanupLoggingRootDir();
}
/* (non-Javadoc)
* @see org.apache.hive.service.cli.ICLIService#getOperationStatus(org.apache.hive.service.cli.OperationHandle)
*/
@Override
public OperationStatus getOperationStatus(OperationHandle opHandle) throws HiveSQLException {
Operation operation = sessionManager.getOperationManager().getOperation(opHandle);
/**
* If this is a background operation run asynchronously, we block for a duration determined by a
* step function, before we return However, if the background operation is complete, we return
* immediately.
*/
if (operation.shouldRunAsync()) {
HiveConf conf = operation.getParentSession().getHiveConf();
long maxTimeout =
HiveConf.getTimeVar(
conf, HiveConf.ConfVars.HIVE_SERVER2_LONG_POLLING_TIMEOUT, TimeUnit.MILLISECONDS);
final long elapsed = System.currentTimeMillis() - operation.getBeginTime();
// A step function to increase the polling timeout by 500 ms every 10 sec,
// starting from 500 ms up to HIVE_SERVER2_LONG_POLLING_TIMEOUT
final long timeout =
Math.min(maxTimeout, (elapsed / TimeUnit.SECONDS.toMillis(10) + 1) * 500);
try {
operation.getBackgroundHandle().get(timeout, TimeUnit.MILLISECONDS);
} catch (TimeoutException e) {
// No Op, return to the caller since long polling timeout has expired
LOG.trace(opHandle + ": Long polling timed out");
} catch (CancellationException e) {
// The background operation thread was cancelled
LOG.trace(opHandle + ": The background operation was cancelled", e);
} catch (ExecutionException e) {
// The background operation thread was aborted
LOG.warn(opHandle + ": The background operation was aborted", e);
} catch (InterruptedException e) {
// No op, this thread was interrupted
// In this case, the call might return sooner than long polling timeout
}
}
OperationStatus opStatus = operation.getStatus();
LOG.debug(opHandle + ": getOperationStatus()");
return opStatus;
}
public LlapTaskUmbilicalExternalClient(
Configuration conf,
String tokenIdentifier,
Token<JobTokenIdentifier> sessionToken,
LlapTaskUmbilicalExternalResponder responder,
Token<LlapTokenIdentifier> llapToken) {
super(LlapTaskUmbilicalExternalClient.class.getName());
this.conf = conf;
this.umbilical = new LlapTaskUmbilicalExternalImpl();
this.tokenIdentifier = tokenIdentifier;
this.sessionToken = sessionToken;
this.responder = responder;
this.timer = new ScheduledThreadPoolExecutor(1);
this.connectionTimeout =
3
* HiveConf.getTimeVar(
conf,
HiveConf.ConfVars.LLAP_DAEMON_AM_LIVENESS_CONNECTION_TIMEOUT_MS,
TimeUnit.MILLISECONDS);
// Add support for configurable threads, however 1 should always be enough.
this.communicator = new LlapProtocolClientProxy(1, conf, llapToken);
this.communicator.init(conf);
}
public Result invokeInternal(final Object proxy, final Method method, final Object[] args)
throws Throwable {
boolean gotNewConnectUrl = false;
boolean reloadConf = HiveConf.getBoolVar(origConf, HiveConf.ConfVars.HMSHANDLERFORCERELOADCONF);
long retryInterval =
HiveConf.getTimeVar(origConf, HiveConf.ConfVars.HMSHANDLERINTERVAL, TimeUnit.MILLISECONDS);
int retryLimit = HiveConf.getIntVar(origConf, HiveConf.ConfVars.HMSHANDLERATTEMPTS);
long timeout =
HiveConf.getTimeVar(
origConf, HiveConf.ConfVars.METASTORE_CLIENT_SOCKET_TIMEOUT, TimeUnit.MILLISECONDS);
Deadline.registerIfNot(timeout);
if (reloadConf) {
MetaStoreInit.updateConnectionURL(origConf, getActiveConf(), null, metaStoreInitData);
}
int retryCount = 0;
Throwable caughtException = null;
while (true) {
try {
if (reloadConf || gotNewConnectUrl) {
baseHandler.setConf(getActiveConf());
}
Object object = null;
boolean isStarted = Deadline.startTimer(method.getName());
try {
object = method.invoke(baseHandler, args);
} finally {
if (isStarted) {
Deadline.stopTimer();
}
}
return new Result(object, retryCount);
} catch (javax.jdo.JDOException e) {
caughtException = e;
} catch (UndeclaredThrowableException e) {
if (e.getCause() != null) {
if (e.getCause() instanceof javax.jdo.JDOException) {
// Due to reflection, the jdo exception is wrapped in
// invocationTargetException
caughtException = e.getCause();
} else if (e.getCause() instanceof MetaException
&& e.getCause().getCause() != null
&& e.getCause().getCause() instanceof javax.jdo.JDOException) {
// The JDOException may be wrapped further in a MetaException
caughtException = e.getCause().getCause();
} else {
LOG.error(ExceptionUtils.getStackTrace(e.getCause()));
throw e.getCause();
}
} else {
LOG.error(ExceptionUtils.getStackTrace(e));
throw e;
}
} catch (InvocationTargetException e) {
if (e.getCause() instanceof javax.jdo.JDOException) {
// Due to reflection, the jdo exception is wrapped in
// invocationTargetException
caughtException = e.getCause();
} else if (e.getCause() instanceof NoSuchObjectException
|| e.getTargetException().getCause() instanceof NoSuchObjectException) {
String methodName = method.getName();
if (!methodName.startsWith("get_database")
&& !methodName.startsWith("get_table")
&& !methodName.startsWith("get_partition")
&& !methodName.startsWith("get_function")) {
LOG.error(ExceptionUtils.getStackTrace(e.getCause()));
}
throw e.getCause();
} else if (e.getCause() instanceof MetaException && e.getCause().getCause() != null) {
if (e.getCause().getCause() instanceof javax.jdo.JDOException
|| e.getCause().getCause() instanceof NucleusException) {
// The JDOException or the Nucleus Exception may be wrapped further in a MetaException
caughtException = e.getCause().getCause();
} else if (e.getCause().getCause() instanceof DeadlineException) {
// The Deadline Exception needs no retry and be thrown immediately.
Deadline.clear();
LOG.error(
"Error happens in method "
+ method.getName()
+ ": "
+ ExceptionUtils.getStackTrace(e.getCause()));
throw e.getCause();
} else {
LOG.error(ExceptionUtils.getStackTrace(e.getCause()));
throw e.getCause();
}
} else {
LOG.error(ExceptionUtils.getStackTrace(e.getCause()));
throw e.getCause();
}
}
if (retryCount >= retryLimit) {
LOG.error("HMSHandler Fatal error: " + ExceptionUtils.getStackTrace(caughtException));
// Since returning exceptions with a nested "cause" can be a problem in
// Thrift, we are stuffing the stack trace into the message itself.
throw new MetaException(ExceptionUtils.getStackTrace(caughtException));
}
assert (retryInterval >= 0);
retryCount++;
LOG.error(
String.format(
"Retrying HMSHandler after %d ms (attempt %d of %d)",
retryInterval, retryCount, retryLimit)
+ " with error: "
+ ExceptionUtils.getStackTrace(caughtException));
Thread.sleep(retryInterval);
// If we have a connection error, the JDO connection URL hook might
// provide us with a new URL to access the datastore.
String lastUrl = MetaStoreInit.getConnectionURL(getActiveConf());
gotNewConnectUrl =
MetaStoreInit.updateConnectionURL(origConf, getActiveConf(), lastUrl, metaStoreInitData);
}
}
