org.apache.hadoop.hive.ql.log

Class LogDivertAppender

java.lang.Object

org.apache.hadoop.hive.ql.log.LogDivertAppender

public class LogDivertAppender
extends Object

Divert appender to redirect operation logs to separate files.

Field Summary

Fields

Modifier and Type	Field and Description
static String	nonVerboseLayout
static String	QUERY_ROUTING_APPENDER Name of the query routine appender.
static String	verboseLayout

Constructor Summary

Constructors

Constructor and Description
LogDivertAppender()

Method Summary

Modifier and Type	Method and Description
static void	registerRoutingAppender(org.apache.hadoop.conf.Configuration conf) Programmatically register a routing appender to Log4J configuration, which automatically writes the log of each query to an individual file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

verboseLayout

public static final String verboseLayout

See Also:

Constant Field Values

nonVerboseLayout

public static final String nonVerboseLayout

See Also:

Constant Field Values

QUERY_ROUTING_APPENDER

public static final String QUERY_ROUTING_APPENDER

Name of the query routine appender.

See Also:

Constant Field Values

Constructor Detail

LogDivertAppender

public LogDivertAppender()

Method Detail

registerRoutingAppender

public static void registerRoutingAppender(org.apache.hadoop.conf.Configuration conf)

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

Parameters:

conf - the configuration for HiveServer2 instance