Index: src/docs/src/documentation/content/xdocs/configuration.xml
===================================================================
--- src/docs/src/documentation/content/xdocs/configuration.xml (revision 1434461)
+++ src/docs/src/documentation/content/xdocs/configuration.xml (working copy)
@@ -188,6 +188,12 @@
+ | templeton.controller.mr.child.opts |
+ -server -Xmx256m -Djava.net.preferIPv4Stack=true |
+ Java options to be passed to templeton controller map task. |
+
+
+
| templeton.exec.envs |
HADOOP_PREFIX,HADOOP_HOME,JAVA_HOME |
The environment variables passed through to exec. |
Index: webhcat/svr/src/main/java/org/apache/hcatalog/templeton/LauncherDelegator.java
===================================================================
--- webhcat/svr/src/main/java/org/apache/hcatalog/templeton/LauncherDelegator.java (revision 1434461)
+++ webhcat/svr/src/main/java/org/apache/hcatalog/templeton/LauncherDelegator.java (working copy)
@@ -116,6 +116,8 @@
// Hadoop vars
addDef(args, "user.name", runAs);
addDef(args, AppConfig.HADOOP_SPECULATIVE_NAME, "false");
+ addDef(args, AppConfig.HADOOP_CHILD_JAVA_OPTS,
+ appConf.get(AppConfig.TEMPLETON_CONTROLLER_MR_CHILD_OPTS));
// Internal vars
addDef(args, TempletonControllerJob.STATUSDIR_NAME, statusdir);
Index: webhcat/svr/src/main/java/org/apache/hcatalog/templeton/AppConfig.java
===================================================================
--- webhcat/svr/src/main/java/org/apache/hcatalog/templeton/AppConfig.java (revision 1434461)
+++ webhcat/svr/src/main/java/org/apache/hcatalog/templeton/AppConfig.java (working copy)
@@ -21,6 +21,7 @@
import java.io.File;
import java.net.URL;
import java.util.Map;
+
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
@@ -95,6 +96,9 @@
public static final String TEMPLETON_JAR_NAME = "templeton.jar";
public static final String OVERRIDE_JARS_NAME = "templeton.override.jars";
public static final String OVERRIDE_JARS_ENABLED = "templeton.override.enabled";
+ public static final String TEMPLETON_CONTROLLER_MR_CHILD_OPTS
+ = "templeton.controller.mr.child.opts";
+
public static final String KERBEROS_SECRET = "templeton.kerberos.secret";
public static final String KERBEROS_PRINCIPAL = "templeton.kerberos.principal";
public static final String KERBEROS_KEYTAB = "templeton.kerberos.keytab";
@@ -103,12 +107,16 @@
= "templeton.callback.retry.interval";
public static final String CALLBACK_RETRY_NAME
= "templeton.callback.retry.attempts";
+
+ //Hadoop property names (set by templeton logic)
public static final String HADOOP_END_INTERVAL_NAME = "job.end.retry.interval";
public static final String HADOOP_END_RETRY_NAME = "job.end.retry.attempts";
public static final String HADOOP_END_URL_NAME = "job.end.notification.url";
public static final String HADOOP_SPECULATIVE_NAME
= "mapred.map.tasks.speculative.execution";
+ public static final String HADOOP_CHILD_JAVA_OPTS = "mapred.child.java.opts";
+
private static final Log LOG = LogFactory.getLog(AppConfig.class);
public AppConfig() {
@@ -177,7 +185,12 @@
public String kerberosSecret() { return get(KERBEROS_SECRET); }
public String kerberosPrincipal(){ return get(KERBEROS_PRINCIPAL); }
public String kerberosKeytab() { return get(KERBEROS_KEYTAB); }
+ public String controllerMRChildOpts() {
+ return get(TEMPLETON_CONTROLLER_MR_CHILD_OPTS);
+ }
+
+
public String[] overrideJars() {
if (getBoolean(OVERRIDE_JARS_ENABLED, true))
return getStrings(OVERRIDE_JARS_NAME);
Index: webhcat/svr/src/main/config/webhcat-default.xml
===================================================================
--- webhcat/svr/src/main/config/webhcat-default.xml (revision 1434461)
+++ webhcat/svr/src/main/config/webhcat-default.xml (working copy)
@@ -145,6 +145,21 @@
+ templeton.controller.mr.child.opts
+ -server -Xmx256m -Djava.net.preferIPv4Stack=true
+ Java options to be passed to templeton controller map task.
+ The default value of mapreduce child "-Xmx" (heap memory limit)
+ might be close to what is allowed for a map task.
+ Even if templeton controller map task does not need much
+ memory, the jvm (with -server option?)
+ allocates the max memory when it starts. This along with the
+ memory used by pig/hive client it starts can end up exceeding
+ the max memory configured to be allowed for a map task
+ Use this option to set -Xmx to lower value
+
+
+
+
templeton.exec.envs
HADOOP_PREFIX,HADOOP_HOME,JAVA_HOME
The environment variables passed through to exec.