Author: cutting
Date: Wed Jun 7 14:09:40 2006
New Revision: 412545
URL: http://svn.apache.org/viewvc?rev=412545&view=rev
Log:
HADOOP-282. Fix datanode to retry registration, rather than permanently fail
if the namenode is down when it starts. Contributed by Owen.
Modified:
lucene/hadoop/trunk/src/java/org/apache/hadoop/dfs/DataNode.java
Modified: lucene/hadoop/trunk/src/java/org/apache/hadoop/dfs/DataNode.java
URL:
http://svn.apache.org/viewvc/lucene/hadoop/trunk/src/java/org/apache/hadoop/dfs/DataNode.java?rev=412545&r1=412544&r2=412545&view=diff
==============================================================================
--- lucene/hadoop/trunk/src/java/org/apache/hadoop/dfs/DataNode.java (original)
+++ lucene/hadoop/trunk/src/java/org/apache/hadoop/dfs/DataNode.java Wed Jun 7
14:09:40 2006
@@ -24,7 +24,6 @@
import java.io.*;
import java.net.*;
-import java.nio.channels.FileLock;
import java.util.*;
/**********************************************************
@@ -106,7 +105,17 @@
new File(datadir),
createSocketAddr(conf.get("fs.default.name", "local")), conf);
// register datanode
- register();
+ while (shouldRun) {
+ try {
+ register();
+ break;
+ } catch (ConnectException ce) {
+ LOG.info("Namenode not available yet, Zzzzz...");
+ try {
+ Thread.sleep(10 * 1000);
+ } catch (InterruptedException ie) {}
+ }
+ }
}
/**
