org.apache.hadoop.hbase.util

Class InfoServer

java.lang.Object

org.apache.hadoop.http.HttpServer

org.apache.hadoop.hbase.util.InfoServer

All Implemented Interfaces:

org.apache.hadoop.http.FilterContainer

@InterfaceAudience.Private
public class InfoServer
extends org.apache.hadoop.http.HttpServer

Create a Jetty embedded server to answer http requests. The primary goal is to serve up status information for the server. There are three contexts: "/stacks/" -> points to stack trace "/static/" -> points to common static files (src/hbase-webapps/static) "/" -> the jsp server code from (src/hbase-webapps/)

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.http.HttpServer

org.apache.hadoop.http.HttpServer.QuotingInputFilter, org.apache.hadoop.http.HttpServer.StackServlet

Field Summary

Fields inherited from class org.apache.hadoop.http.HttpServer

CONF_CONTEXT_ATTRIBUTE, defaultContexts, filterNames, findPort, KRB5_FILTER, listener, LOG, SPNEGO_FILTER, webAppContext, webServer

Constructor Summary

Constructors

Constructor and Description
InfoServer(String name, String bindAddress, int port, boolean findPort, org.apache.hadoop.conf.Configuration c) Create a status server on the given port.

Method Summary

Methods

Modifier and Type	Method and Description
protected String	getWebAppsPath() Get the pathname to the path files.
protected String	getWebAppsPath(String appName) Get the pathname to the webapps files.

Methods inherited from class org.apache.hadoop.http.HttpServer

addContext, addContext, addDefaultApps, addDefaultServlets, addFilter, addFilterPathMapping, addGlobalFilter, addInternalServlet, addInternalServlet, addJerseyResourcePackage, addServlet, addSslListener, addSslListener, addSslListener, createBaseListener, createDefaultChannelConnector, defineFilter, getAttribute, getPort, hasAdministratorAccess, isInstrumentationAccessAllowed, join, setAttribute, setAttribute, setThreads, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

InfoServer

public InfoServer(String name,
          String bindAddress,
          int port,
          boolean findPort,
          org.apache.hadoop.conf.Configuration c)
           throws IOException

Create a status server on the given port. The jsp scripts are taken from src/hbase-webapps/name.

Parameters:

name - The name of the server

bindAddress - address to bind to

port - The port to use on the server

findPort - whether the server should start at the given port and increment by 1 until it finds a free port.

Throws:

IOException - e

Method Detail

getWebAppsPath

protected String getWebAppsPath(String appName)
                         throws FileNotFoundException

Get the pathname to the webapps files.

Parameters:

appName - eg "secondary" or "datanode"

Returns:

the pathname as a URL

Throws:

FileNotFoundException - if 'webapps' directory cannot be found on CLASSPATH.

getWebAppsPath

protected String getWebAppsPath()
                         throws IOException

Get the pathname to the path files.

Overrides:

getWebAppsPath in class org.apache.hadoop.http.HttpServer

Returns:

the pathname as a URL

Throws:

IOException