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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.hadoop.hive.ql.log;
import java.util.regex.Pattern;
import org.apache.hadoop.hive.common.LogUtils;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.Driver;
import org.apache.hadoop.hive.ql.exec.Task;
import org.apache.hadoop.hive.ql.session.OperationLog;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.LoggerContext;
import org.apache.logging.log4j.core.appender.routing.Route;
import org.apache.logging.log4j.core.appender.routing.Routes;
import org.apache.logging.log4j.core.appender.routing.RoutingAppender;
import org.apache.logging.log4j.core.config.Configuration;
import org.apache.logging.log4j.core.config.LoggerConfig;
import org.apache.logging.log4j.core.config.Node;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
import org.apache.logging.log4j.core.config.plugins.PluginFactory;
import org.apache.logging.log4j.core.config.plugins.processor.PluginEntry;
import org.apache.logging.log4j.core.config.plugins.util.PluginType;
import org.apache.logging.log4j.core.filter.AbstractFilter;
import org.apache.logging.log4j.core.layout.PatternLayout;
import org.slf4j.LoggerFactory;
import com.google.common.base.Joiner;
import com.google.common.base.Preconditions;
/**
* Divert appender to redirect operation logs to separate files.
*/
public class LogDivertAppender {
private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(LogDivertAppender.class.getName());
public static final String verboseLayout = "%d{yy/MM/dd HH:mm:ss} %p %c{2}: %m%n";
public static final String nonVerboseLayout = "%-5p : %m%n";
/**
* Name of the query routine appender.
*/
public static final String QUERY_ROUTING_APPENDER = "query-routing";
/**
* A log filter that filters messages coming from the logger with the given names.
* It be used as a white list filter or a black list filter.
* We apply black list filter on the Loggers used by the log diversion stuff, so that
* they don't generate more logs for themselves when they process logs.
* White list filter is used for less verbose log collection
*/
@Plugin(name = "NameFilter", category = "Core", elementType="filter", printObject = true)
private static class NameFilter extends AbstractFilter {
private Pattern namePattern;
private OperationLog.LoggingLevel loggingMode;
/* Patterns that are excluded in verbose logging level.
* Filter out messages coming from log processing classes, or we'll run an infinite loop.
*/
private static final Pattern verboseExcludeNamePattern = Pattern.compile(Joiner.on("|").
join(new String[]{LOG.getName(), OperationLog.class.getName()}));
/* Patterns that are included in execution logging level.
* In execution mode, show only select logger messages.
*/
private static final Pattern executionIncludeNamePattern = Pattern.compile(Joiner.on("|").
join(new String[]{"org.apache.hadoop.mapreduce.JobSubmitter",
"org.apache.hadoop.mapreduce.Job", "SessionState", "ReplState", Task.class.getName(),
Driver.class.getName(), "org.apache.hadoop.hive.ql.exec.spark.status.SparkJobMonitor"}));
/* Patterns that are included in performance logging level.
* In performance mode, show execution and performance logger messages.
*/
private static final Pattern performanceIncludeNamePattern = Pattern.compile(
executionIncludeNamePattern.pattern() + "|" + PerfLogger.class.getName());
private void setCurrentNamePattern(OperationLog.LoggingLevel mode) {
if (mode == OperationLog.LoggingLevel.VERBOSE) {
this.namePattern = verboseExcludeNamePattern;
} else if (mode == OperationLog.LoggingLevel.EXECUTION) {
this.namePattern = executionIncludeNamePattern;
} else if (mode == OperationLog.LoggingLevel.PERFORMANCE) {
this.namePattern = performanceIncludeNamePattern;
}
}
public NameFilter(OperationLog.LoggingLevel loggingMode) {
this.loggingMode = loggingMode;
setCurrentNamePattern(loggingMode);
}
@Override
public Result filter(LogEvent event) {
boolean excludeMatches = (loggingMode == OperationLog.LoggingLevel.VERBOSE);
String logLevel = event.getContextMap().get(LogUtils.OPERATIONLOG_LEVEL_KEY);
logLevel = logLevel == null ? "" : logLevel;
OperationLog.LoggingLevel currentLoggingMode = OperationLog.getLoggingLevel(logLevel);
// If logging is disabled, deny everything.
if (currentLoggingMode == OperationLog.LoggingLevel.NONE) {
return Result.DENY;
}
// Look at the current session's setting
// and set the pattern and excludeMatches accordingly.
if (currentLoggingMode != loggingMode) {
loggingMode = currentLoggingMode;
excludeMatches = (loggingMode == OperationLog.LoggingLevel.VERBOSE);
setCurrentNamePattern(loggingMode);
}
boolean isMatch = namePattern.matcher(event.getLoggerName()).matches();
if (excludeMatches == isMatch) {
// Deny if this is black-list filter (excludeMatches = true) and it
// matched or if this is whitelist filter and it didn't match
return Result.DENY;
}
return Result.NEUTRAL;
}
@PluginFactory
public static NameFilter createFilter(
@PluginAttribute("loggingLevel") final String loggingLevel) {
// Name required for routing. Error out if it is not set.
Preconditions.checkNotNull(loggingLevel,
"loggingLevel must be specified for " + NameFilter.class.getName());
return new NameFilter(OperationLog.getLoggingLevel(loggingLevel));
}
}
/**
* Programmatically register a routing appender to Log4J configuration, which
* automatically writes the log of each query to an individual file.
* The equivalent property configuration is as follows:
* # queryId based routing file appender
appender.query-routing.type = Routing
appender.query-routing.name = query-routing
appender.query-routing.routes.type = Routes
appender.query-routing.routes.pattern = $${ctx:queryId}
# default route
appender.query-routing.routes.route-default.type = Route
appender.query-routing.routes.route-default.key = $${ctx:queryId}
appender.query-routing.routes.route-default.app.type = null
appender.query-routing.routes.route-default.app.name = Null
# queryId based route
appender.query-routing.routes.route-mdc.type = Route
appender.query-routing.routes.route-mdc.name = IrrelevantName-query-routing
appender.query-routing.routes.route-mdc.app.type = RandomAccessFile
appender.query-routing.routes.route-mdc.app.name = query-file-appender
appender.query-routing.routes.route-mdc.app.fileName = ${sys:hive.log.dir}/${ctx:sessionId}/${ctx:queryId}
appender.query-routing.routes.route-mdc.app.layout.type = PatternLayout
appender.query-routing.routes.route-mdc.app.layout.pattern = %d{ISO8601} %5p %c{2}: %m%n
* @param conf the configuration for HiveServer2 instance
*/
public static void registerRoutingAppender(org.apache.hadoop.conf.Configuration conf) {
String loggingLevel = HiveConf.getVar(conf, HiveConf.ConfVars.HIVE_SERVER2_LOGGING_OPERATION_LEVEL);
OperationLog.LoggingLevel loggingMode = OperationLog.getLoggingLevel(loggingLevel);
String layout = loggingMode == OperationLog.LoggingLevel.VERBOSE ? verboseLayout : nonVerboseLayout;
String logLocation = HiveConf.getVar(conf, HiveConf.ConfVars.HIVE_SERVER2_LOGGING_OPERATION_LOG_LOCATION);
// Create NullAppender
PluginEntry nullEntry = new PluginEntry();
nullEntry.setClassName(NullAppender.class.getName());
nullEntry.setKey("null");
nullEntry.setName("appender");
PluginType nullChildType = new PluginType(nullEntry, NullAppender.class, "appender");
Node nullChildNode = new Node(null, "Null", nullChildType);
// Create default route
PluginEntry defaultEntry = new PluginEntry();
defaultEntry.setClassName(Route.class.getName());
defaultEntry.setKey("route");
defaultEntry.setName("Route");
PluginType defaultType = new PluginType(defaultEntry, Route.class, "Route");
Node nullNode = new Node(null, "Route", defaultType);
nullNode.getChildren().add(nullChildNode);
Route defaultRoute = Route.createRoute(null, "${ctx:queryId}", nullNode);
// Create queryId based route
PluginEntry entry = new PluginEntry();
entry.setClassName(Route.class.getName());
entry.setKey("route");
entry.setName("Route");
PluginType type = new PluginType(entry, Route.class, "Route");
Node node = new Node(null, "Route", type);
PluginEntry childEntry = new PluginEntry();
childEntry.setClassName(HushableRandomAccessFileAppender.class.getName());
childEntry.setKey("HushableMutableRandomAccess");
childEntry.setName("appender");
PluginType childType = new PluginType<>(childEntry, HushableRandomAccessFileAppender.class, "appender");
Node childNode = new Node(node, "HushableMutableRandomAccess", childType);
childNode.getAttributes().put("name", "query-file-appender");
childNode.getAttributes().put("fileName", logLocation + "/${ctx:sessionId}/${ctx:queryId}");
node.getChildren().add(childNode);
PluginEntry filterEntry = new PluginEntry();
filterEntry.setClassName(NameFilter.class.getName());
filterEntry.setKey("namefilter");
filterEntry.setName("namefilter");
PluginType filterType = new PluginType<>(filterEntry, NameFilter.class, "filter");
Node filterNode = new Node(childNode, "NameFilter", filterType);
filterNode.getAttributes().put("loggingLevel", loggingMode.name());
childNode.getChildren().add(filterNode);
PluginEntry layoutEntry = new PluginEntry();
layoutEntry.setClassName(PatternLayout.class.getName());
layoutEntry.setKey("patternlayout");
layoutEntry.setName("layout");
PluginType layoutType = new PluginType<>(layoutEntry, PatternLayout.class, "layout");
Node layoutNode = new Node(childNode, "PatternLayout", layoutType);
layoutNode.getAttributes().put("pattern", layout);
childNode.getChildren().add(layoutNode);
Route mdcRoute = Route.createRoute(null, null, node);
Routes routes = Routes.createRoutes("${ctx:queryId}", defaultRoute, mdcRoute);
LoggerContext context = (LoggerContext) LogManager.getContext(false);
Configuration configuration = context.getConfiguration();
RoutingAppender routingAppender = RoutingAppender.createAppender(QUERY_ROUTING_APPENDER,
"true",
routes,
configuration,
null,
null,
null);
LoggerConfig loggerConfig = configuration.getRootLogger();
loggerConfig.addAppender(routingAppender, null, null);
context.updateLoggers();
routingAppender.start();
}
}
