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YARN-538. RM address DNS lookup can cause unnecessary slowness on every JHS page load. (sandyr via tucu)

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1464197 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Alejandro Abdelnur 2013-04-03 20:41:57 +00:00
parent 0e9f61addc
commit 2100e93b04
2 changed files with 7 additions and 9 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -185,6 +185,9 @@ Release 2.0.5-beta - UNRELEASED
YARN-101. Fix NodeManager heartbeat processing to not lose track of completed
containers in case of dropped heartbeats. (Xuan Gong via vinodkv)
YARN-538. RM address DNS lookup can cause unnecessary slowness on every JHS
page load. (sandyr via tucu)
Release 2.0.4-alpha - UNRELEASED
INCOMPATIBLE CHANGES

13
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
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@ -717,21 +717,16 @@ public static String getProxyHostAndPort(Configuration conf) {
}
public static String getRMWebAppHostAndPort(Configuration conf) {
int port = conf.getSocketAddr(
InetSocketAddress address = conf.getSocketAddr(
YarnConfiguration.RM_WEBAPP_ADDRESS,
YarnConfiguration.DEFAULT_RM_WEBAPP_ADDRESS,
YarnConfiguration.DEFAULT_RM_WEBAPP_PORT).getPort();
// Use apps manager address to figure out the host for webapp
String host = conf.getSocketAddr(
YarnConfiguration.RM_ADDRESS,
YarnConfiguration.DEFAULT_RM_ADDRESS,
YarnConfiguration.DEFAULT_RM_PORT).getHostName();
InetSocketAddress address = NetUtils.createSocketAddrForHost(host, port);
YarnConfiguration.DEFAULT_RM_WEBAPP_PORT);
address = NetUtils.getConnectAddress(address);
StringBuffer sb = new StringBuffer();
InetAddress resolved = address.getAddress();
if (resolved == null || resolved.isAnyLocalAddress() ||
resolved.isLoopbackAddress()) {
String lh = host;
String lh = address.getHostName();
try {
lh = InetAddress.getLocalHost().getCanonicalHostName();
} catch (UnknownHostException e) {