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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hive.service.cli.thrift;
import java.util.Arrays;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.TimeUnit;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.ws.rs.HttpMethod;
import org.apache.hadoop.hive.common.metrics.common.Metrics;
import org.apache.hadoop.hive.common.metrics.common.MetricsConstant;
import org.apache.hadoop.hive.common.metrics.common.MetricsFactory;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.conf.HiveConf.ConfVars;
import org.apache.hadoop.hive.shims.ShimLoader;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hive.service.auth.HiveAuthFactory;
import org.apache.hive.service.cli.CLIService;
import org.apache.hive.service.rpc.thrift.TCLIService;
import org.apache.hive.service.rpc.thrift.TCLIService.Iface;
import org.apache.hive.service.server.ThreadFactoryWithGarbageCleanup;
import org.apache.thrift.TProcessor;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocolFactory;
import org.apache.thrift.server.TServlet;
import org.eclipse.jetty.server.HttpConfiguration;
import org.eclipse.jetty.server.HttpConnectionFactory;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.server.handler.gzip.GzipHandler;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.eclipse.jetty.util.ssl.SslContextFactory;
import org.eclipse.jetty.util.thread.ExecutorThreadPool;
public class ThriftHttpCLIService extends ThriftCLIService {
private static final String APPLICATION_THRIFT = "application/x-thrift";
private final Runnable oomHook;
public ThriftHttpCLIService(CLIService cliService, Runnable oomHook) {
super(cliService, ThriftHttpCLIService.class.getSimpleName());
this.oomHook = oomHook;
}
/**
* Configure Jetty to serve http requests. Example of a client connection URL:
* http://localhost:10000/servlets/thrifths2/ A gateway may cause actual target URL to differ,
* e.g. http://gateway:port/hive2/servlets/thrifths2/
*/
@Override
public void run() {
try {
// Server thread pool
// Start with minWorkerThreads, expand till maxWorkerThreads and reject subsequent requests
String threadPoolName = "HiveServer2-HttpHandler-Pool";
ExecutorService executorService = new ThreadPoolExecutorWithOomHook(minWorkerThreads,
maxWorkerThreads, workerKeepAliveTime, TimeUnit.SECONDS, new SynchronousQueue(),
new ThreadFactoryWithGarbageCleanup(threadPoolName), oomHook);
ExecutorThreadPool threadPool = new ExecutorThreadPool(executorService);
// HTTP Server
httpServer = new Server(threadPool);
ServerConnector connector;
final HttpConfiguration conf = new HttpConfiguration();
// Configure header size
int requestHeaderSize =
hiveConf.getIntVar(ConfVars.HIVE_SERVER2_THRIFT_HTTP_REQUEST_HEADER_SIZE);
int responseHeaderSize =
hiveConf.getIntVar(ConfVars.HIVE_SERVER2_THRIFT_HTTP_RESPONSE_HEADER_SIZE);
conf.setRequestHeaderSize(requestHeaderSize);
conf.setResponseHeaderSize(responseHeaderSize);
final HttpConnectionFactory http = new HttpConnectionFactory(conf);
boolean useSsl = hiveConf.getBoolVar(ConfVars.HIVE_SERVER2_USE_SSL);
String schemeName = useSsl ? "https" : "http";
// Change connector if SSL is used
if (useSsl) {
String keyStorePath = hiveConf.getVar(ConfVars.HIVE_SERVER2_SSL_KEYSTORE_PATH).trim();
String keyStorePassword = ShimLoader.getHadoopShims().getPassword(hiveConf,
HiveConf.ConfVars.HIVE_SERVER2_SSL_KEYSTORE_PASSWORD.varname);
if (keyStorePath.isEmpty()) {
throw new IllegalArgumentException(ConfVars.HIVE_SERVER2_SSL_KEYSTORE_PATH.varname
+ " Not configured for SSL connection");
}
SslContextFactory sslContextFactory = new SslContextFactory();
String[] excludedProtocols = hiveConf.getVar(ConfVars.HIVE_SSL_PROTOCOL_BLACKLIST).split(",");
LOG.info("HTTP Server SSL: adding excluded protocols: " + Arrays.toString(excludedProtocols));
sslContextFactory.addExcludeProtocols(excludedProtocols);
LOG.info("HTTP Server SSL: SslContextFactory.getExcludeProtocols = " +
Arrays.toString(sslContextFactory.getExcludeProtocols()));
sslContextFactory.setKeyStorePath(keyStorePath);
sslContextFactory.setKeyStorePassword(keyStorePassword);
connector = new ServerConnector(httpServer, sslContextFactory, http);
} else {
connector = new ServerConnector(httpServer, http);
}
connector.setPort(portNum);
// Linux:yes, Windows:no
connector.setReuseAddress(true);
int maxIdleTime = (int) hiveConf.getTimeVar(ConfVars.HIVE_SERVER2_THRIFT_HTTP_MAX_IDLE_TIME,
TimeUnit.MILLISECONDS);
connector.setIdleTimeout(maxIdleTime);
httpServer.addConnector(connector);
// Thrift configs
hiveAuthFactory = new HiveAuthFactory(hiveConf);
TProcessor processor = new TCLIService.Processor(this);
TProtocolFactory protocolFactory = new TBinaryProtocol.Factory();
// Set during the init phase of HiveServer2 if auth mode is kerberos
// UGI for the hive/_HOST (kerberos) principal
UserGroupInformation serviceUGI = cliService.getServiceUGI();
// UGI for the http/_HOST (SPNego) principal
UserGroupInformation httpUGI = cliService.getHttpUGI();
String authType = hiveConf.getVar(ConfVars.HIVE_SERVER2_AUTHENTICATION);
TServlet thriftHttpServlet = new ThriftHttpServlet(processor, protocolFactory, authType,
serviceUGI, httpUGI, hiveAuthFactory);
// Context handler
final ServletContextHandler context = new ServletContextHandler(
ServletContextHandler.SESSIONS);
context.setContextPath("/");
if (hiveConf.getBoolean(ConfVars.HIVE_SERVER2_XSRF_FILTER_ENABLED.varname, false)){
// context.addFilter(Utils.getXSRFFilterHolder(null, null), "/" ,
// FilterMapping.REQUEST);
// Filtering does not work here currently, doing filter in ThriftHttpServlet
LOG.debug("XSRF filter enabled");
} else {
LOG.warn("XSRF filter disabled");
}
context.addEventListener(new ServletContextListener() {
@Override
public void contextInitialized(ServletContextEvent servletContextEvent) {
Metrics metrics = MetricsFactory.getInstance();
if (metrics != null) {
try {
metrics.incrementCounter(MetricsConstant.OPEN_CONNECTIONS);
metrics.incrementCounter(MetricsConstant.CUMULATIVE_CONNECTION_COUNT);
} catch (Exception e) {
LOG.warn("Error reporting HS2 open connection operation to Metrics system", e);
}
}
}
@Override
public void contextDestroyed(ServletContextEvent servletContextEvent) {
Metrics metrics = MetricsFactory.getInstance();
if (metrics != null) {
try {
metrics.decrementCounter(MetricsConstant.OPEN_CONNECTIONS);
} catch (Exception e) {
LOG.warn("Error reporting HS2 close connection operation to Metrics system", e);
}
}
}
});
final String httpPath = getHttpPath(hiveConf
.getVar(HiveConf.ConfVars.HIVE_SERVER2_THRIFT_HTTP_PATH));
if (HiveConf.getBoolVar(hiveConf, ConfVars.HIVE_SERVER2_THRIFT_HTTP_COMPRESSION_ENABLED)) {
final GzipHandler gzipHandler = new GzipHandler();
gzipHandler.setHandler(context);
gzipHandler.addIncludedMethods(HttpMethod.POST);
gzipHandler.addIncludedMimeTypes(APPLICATION_THRIFT);
httpServer.setHandler(gzipHandler);
} else {
httpServer.setHandler(context);
}
context.addServlet(new ServletHolder(thriftHttpServlet), httpPath);
// TODO: check defaults: maxTimeout, keepalive, maxBodySize, bodyRecieveDuration, etc.
// Finally, start the server
httpServer.start();
String msg = "Started " + ThriftHttpCLIService.class.getSimpleName() + " in " + schemeName
+ " mode on port " + portNum + " path=" + httpPath + " with " + minWorkerThreads + "..."
+ maxWorkerThreads + " worker threads";
LOG.info(msg);
httpServer.join();
} catch (Throwable t) {
LOG.error(
"Error starting HiveServer2: could not start "
+ ThriftHttpCLIService.class.getSimpleName(), t);
System.exit(-1);
}
}
/**
* The config parameter can be like "path", "/path", "/path/", "path/*", "/path1/path2/*" and so on.
* httpPath should end up as "/*", "/path/*" or "/path1/../pathN/*"
* @param httpPath
* @return
*/
private String getHttpPath(String httpPath) {
if(httpPath == null || httpPath.equals("")) {
httpPath = "/*";
}
else {
if(!httpPath.startsWith("/")) {
httpPath = "/" + httpPath;
}
if(httpPath.endsWith("/")) {
httpPath = httpPath + "*";
}
if(!httpPath.endsWith("/*")) {
httpPath = httpPath + "/*";
}
}
return httpPath;
}
}
