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SOLR-4088: when host is null, fall back to interface iteration (heuristic 2) if resolving the system hostname (heuristic 1) fails 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1425971 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Muir 2012-12-26 17:18:46 +00:00
parent 0c86e24407
commit aa00eb2e70
1 changed files with 7 additions and 1 deletions
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8
solr/core/src/java/org/apache/solr/cloud/ZkController.java
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@ -23,6 +23,7 @@ import java.io.UnsupportedEncodingException;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.URLEncoder;
import java.net.UnknownHostException;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
@ -372,7 +373,12 @@ public final class ZkController {
private String getHostAddress(String host) throws IOException {
if (host == null) {
String hostaddress = InetAddress.getLocalHost().getHostAddress();
String hostaddress;
try {
hostaddress = InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
hostaddress = "127.0.0.1"; // cannot resolve system hostname, fall through
}
// Re-get the IP again for "127.0.0.1", the other case we trust the hosts
// file is right.
if ("127.0.0.1".equals(hostaddress)) {