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10org.apache.hadoop.mapred.JobTracker
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40CONSTRUCTORS&nbsp;|&nbsp;
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48<H2>
49Class org.apache.hadoop.mapred.<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html" target="_top"><tt>JobTracker</tt></A>
50</H2>
51<p><font size="+1">Added interface <code>org.apache.hadoop.security.authorize.RefreshAuthorizationPolicyProtocol</code>.<br></font>
52<a NAME="constructors"></a>
53<a NAME="methods"></a>
54<p>
55<a NAME="Added"></a>
56<TABLE summary="Added Methods" BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
57<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
58  <TD VALIGN="TOP" COLSPAN=2><FONT SIZE="+1"><B>Added Methods</B></FONT></TD>
59</TR>
60<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
61  <TD VALIGN="TOP" WIDTH="25%">
62  <A NAME="org.apache.hadoop.mapred.JobTracker.activeTaskTrackers_added()"></A>
63  <nobr><code>Collection</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#activeTaskTrackers()" target="_top"><tt>activeTaskTrackers</tt></A>()</nobr>
64  </TD>
65  <TD VALIGN="TOP">Get the active task tracker statuses in the cluster </TD>
66</TR>
67<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
68  <TD VALIGN="TOP" WIDTH="25%">
69  <A NAME="org.apache.hadoop.mapred.JobTracker.blacklistedTaskTrackers_added()"></A>
70  <nobr><code>Collection</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#blacklistedTaskTrackers()" target="_top"><tt>blacklistedTaskTrackers</tt></A>()</nobr>
71  </TD>
72  <TD VALIGN="TOP">Get the blacklisted task tracker statuses in the cluster </TD>
73</TR>
74<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
75  <TD VALIGN="TOP" WIDTH="25%">
76  <A NAME="org.apache.hadoop.mapred.JobTracker.failJob_added(org.apache.hadoop.mapred.JobInProgress)"></A>
77  <nobr><code>void</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#failJob(org.apache.hadoop.mapred.JobInProgress)" target="_top"><tt>failJob</tt></A>(<code>JobInProgress</code>)</nobr>
78  </TD>
79  <TD VALIGN="TOP">Fail a job and inform the listeners.</TD>
80</TR>
81<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
82  <TD VALIGN="TOP" WIDTH="25%">
83  <A NAME="org.apache.hadoop.mapred.JobTracker.getClusterStatus_added(boolean)"></A>
84  <nobr><code>ClusterStatus</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#getClusterStatus(boolean)" target="_top"><tt>getClusterStatus</tt></A>(<code>boolean</code>)</nobr>
85  </TD>
86  <TD>&nbsp;</TD>
87</TR>
88<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
89  <TD VALIGN="TOP" WIDTH="25%">
90  <A NAME="org.apache.hadoop.mapred.JobTracker.initJob_added(org.apache.hadoop.mapred.JobInProgress)"></A>
91  <nobr><code>void</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#initJob(org.apache.hadoop.mapred.JobInProgress)" target="_top"><tt>initJob</tt></A>(<code>JobInProgress</code>)</nobr>
92  </TD>
93  <TD>&nbsp;</TD>
94</TR>
95<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
96  <TD VALIGN="TOP" WIDTH="25%">
97  <A NAME="org.apache.hadoop.mapred.JobTracker.isBlacklisted_added(java.lang.String)"></A>
98  <nobr><code>boolean</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#isBlacklisted(java.lang.String)" target="_top"><tt>isBlacklisted</tt></A>(<code>String</code>)</nobr>
99  </TD>
100  <TD VALIGN="TOP">Whether the tracker is blacklisted or not </TD>
101</TR>
102<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
103  <TD VALIGN="TOP" WIDTH="25%">
104  <A NAME="org.apache.hadoop.mapred.JobTracker.refreshServiceAcl_added()"></A>
105  <nobr><code>void</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#refreshServiceAcl()" target="_top"><tt>refreshServiceAcl</tt></A>()</nobr>
106  </TD>
107  <TD>&nbsp;</TD>
108</TR>
109<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
110  <TD VALIGN="TOP" WIDTH="25%">
111  <A NAME="org.apache.hadoop.mapred.JobTracker.startTracker_added(org.apache.hadoop.mapred.JobConf, java.lang.String)"></A>
112  <nobr><code>JobTracker</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#startTracker(org.apache.hadoop.mapred.JobConf, java.lang.String)" target="_top"><tt>startTracker</tt></A>(<code>JobConf,</nobr> String<nobr><nobr></code>)</nobr>
113  </TD>
114  <TD>&nbsp;</TD>
115</TR>
116<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
117  <TD VALIGN="TOP" WIDTH="25%">
118  <A NAME="org.apache.hadoop.mapred.JobTracker.taskTrackerNames_added()"></A>
119  <nobr><code>List</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#taskTrackerNames()" target="_top"><tt>taskTrackerNames</tt></A>()</nobr>
120  </TD>
121  <TD VALIGN="TOP">Get the active and blacklisted task tracker names in the cluster.</TD>
122</TR>
123</TABLE>
124&nbsp;
125<p>
126<a NAME="Changed"></a>
127<TABLE summary="Changed Methods" BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">
128<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
129  <TD VALIGN="TOP" COLSPAN=3><FONT SIZE="+1"><B>Changed Methods</B></FONT></TD>
130</TR>
131<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
132  <TD VALIGN="TOP" WIDTH="25%">
133  <A NAME="org.apache.hadoop.mapred.JobTracker.completedJobs_changed()"></A>
134  <nobr><code>Vector</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#completedJobs()" target="_top"><tt>completedJobs</tt></A>()  </nobr>
135  </TD>
136  <TD VALIGN="TOP" WIDTH="30%">
137Change in return type from <code>JobInProgress></code> to <code>Vector</code>.<br>
138  </TD>
139  <TD>&nbsp;</TD>
140</TR>
141<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
142  <TD VALIGN="TOP" WIDTH="25%">
143  <A NAME="org.apache.hadoop.mapred.JobTracker.failedJobs_changed()"></A>
144  <nobr><code>Vector</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#failedJobs()" target="_top"><tt>failedJobs</tt></A>()  </nobr>
145  </TD>
146  <TD VALIGN="TOP" WIDTH="30%">
147Change in return type from <code>JobInProgress></code> to <code>Vector</code>.<br>
148  </TD>
149  <TD>&nbsp;</TD>
150</TR>
151<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
152  <TD VALIGN="TOP" WIDTH="25%">
153  <A NAME="org.apache.hadoop.mapred.JobTracker.getInstrumentationClass_changed(org.apache.hadoop.conf.Configuration)"></A>
154  <nobr><code>Class</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#getInstrumentationClass(org.apache.hadoop.conf.Configuration)" target="_top"><tt>getInstrumentationClass</tt></A>(<code>Configuration</code>)  </nobr>
155  </TD>
156  <TD VALIGN="TOP" WIDTH="30%">
157Change in return type from (<code>Class<?, extends, JobTrackerInstrumentation></code>) to <code>Class</code>.<br>
158  </TD>
159  <TD>&nbsp;</TD>
160</TR>
161<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
162  <TD VALIGN="TOP" WIDTH="25%">
163  <A NAME="org.apache.hadoop.mapred.JobTracker.getNodesAtMaxLevel_changed()"></A>
164  <nobr><code>Collection</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#getNodesAtMaxLevel()" target="_top"><tt>getNodesAtMaxLevel</tt></A>()  </nobr>
165  </TD>
166  <TD VALIGN="TOP" WIDTH="30%">
167Change in return type from <code>Node></code> to <code>Collection</code>.<br>
168  </TD>
169  <TD VALIGN="TOP">Returns a collection of nodes at the max level</TD>
170</TR>
171<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
172  <TD VALIGN="TOP" WIDTH="25%">
173  <A NAME="org.apache.hadoop.mapred.JobTracker.getRunningJobs_changed()"></A>
174  <nobr><code>List</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#getRunningJobs()" target="_top"><tt>getRunningJobs</tt></A>()  </nobr>
175  </TD>
176  <TD VALIGN="TOP" WIDTH="30%">
177Change in return type from <code>JobInProgress></code> to <code>List</code>.<br>
178  </TD>
179  <TD VALIGN="TOP">Version that is called from a timer thread and therefore needs to be careful to synchronize.</TD>
180</TR>
181<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
182  <TD VALIGN="TOP" WIDTH="25%">
183  <A NAME="org.apache.hadoop.mapred.JobTracker.heartbeat_changed(org.apache.hadoop.mapred.TaskTrackerStatus, boolean, boolean, boolean, short)"></A>
184  <nobr><code>HeartbeatResponse</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#heartbeat(org.apache.hadoop.mapred.TaskTrackerStatus, boolean, boolean, boolean, short)" target="_top"><tt>heartbeat</tt></A>(<code>TaskTrackerStatus,</nobr> boolean<nobr>,</nobr> boolean<nobr>,</nobr> boolean<nobr>,</nobr> short<nobr><nobr></code>)  </nobr>
185  </TD>
186  <TD VALIGN="TOP" WIDTH="30%">
187Change in signature from (<code>TaskTrackerStatus, boolean, boolean, short</code>) to (<code>TaskTrackerStatus, boolean, boolean, boolean, short</code>).<br>
188  </TD>
189  <TD VALIGN="TOP">The periodic heartbeat mechanism between the <A HREF="../../api/TaskTracker.html" target="_top">TaskTracker</A> and the <A HREF="../../api/JobTracker.html" target="_top">JobTracker</A> The <A HREF="../../api/JobTracker.html" target="_top">JobTracker</A> processes the status information sent by the <A HREF="../../api/TaskTracker.html" target="_top">TaskTracker</A> and responds with instructions to start/stop tasks or jobs and also 'reset' instructions during contingencies.</TD>
190</TR>
191<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
192  <TD VALIGN="TOP" WIDTH="25%">
193  <A NAME="org.apache.hadoop.mapred.JobTracker.runningJobs_changed()"></A>
194  <nobr><code>Vector</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#runningJobs()" target="_top"><tt>runningJobs</tt></A>()  </nobr>
195  </TD>
196  <TD VALIGN="TOP" WIDTH="30%">
197Change in return type from <code>JobInProgress></code> to <code>Vector</code>.<br>
198  </TD>
199  <TD>&nbsp;</TD>
200</TR>
201<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
202  <TD VALIGN="TOP" WIDTH="25%">
203  <A NAME="org.apache.hadoop.mapred.JobTracker.setInstrumentationClass_changed(org.apache.hadoop.conf.Configuration, java.lang.Class)"></A>
204  <nobr><code>void</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#setInstrumentationClass(org.apache.hadoop.conf.Configuration, java.lang.Class)" target="_top"><tt>setInstrumentationClass</tt></A>(<code>Configuration,</nobr> Class<nobr><nobr></code>)  </nobr>
205  </TD>
206  <TD VALIGN="TOP" WIDTH="30%">
207Change in signature from (<code>Configuration, Class<?, extends, JobTrackerInstrumentation></code>) to (<code>Configuration, Class</code>).<br>
208  </TD>
209  <TD>&nbsp;</TD>
210</TR>
211<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
212  <TD VALIGN="TOP" WIDTH="25%">
213  <A NAME="org.apache.hadoop.mapred.JobTracker.taskTrackers_changed()"></A>
214  <nobr><code>Collection</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#taskTrackers()" target="_top"><tt>taskTrackers</tt></A>()  </nobr>
215  </TD>
216  <TD VALIGN="TOP" WIDTH="30%">
217Change in return type from <code>TaskTrackerStatus></code> to <code>Collection</code>.<br>
218  </TD>
219  <TD VALIGN="TOP">Get all the task trackers in the cluster </TD>
220</TR>
221<TR BGCOLOR="#FFFFFF" CLASS="TableRowColor">
222  <TD VALIGN="TOP" WIDTH="25%">
223  <A NAME="org.apache.hadoop.mapred.JobTracker.getClusterStatus_changed()"></A>
224  <nobr><code>ClusterStatus</code>&nbsp;<A HREF="../../api/org/apache/hadoop/mapred/JobTracker.html#getClusterStatus()" target="_top"><tt>getClusterStatus</tt></A>()  </nobr>
225  </TD>
226  <TD VALIGN="TOP" WIDTH="30%">
227<b>Now deprecated</b>.<br>
228  </TD>
229  <TD VALIGN="TOP">use {@link #getClusterStatus(boolean)}</TD>
230</TR>
231</TABLE>
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