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HDFS-3129. NetworkTopology: add test that getLeaf should check for invalid topologies. Contributed by Colin Patrick McCabe 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1305628 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Eli Collins 2012-03-26 22:07:30 +00:00
parent 1650a49993
commit 99a321419f
2 changed files with 22 additions and 0 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -282,6 +282,9 @@ Release 0.23.3 - UNRELEASED
HADOOP-8159. NetworkTopology: getLeaf should check for invalid topologies.
(Colin Patrick McCabe via eli)
HDFS-3129. NetworkTopology: add test that getLeaf should check for
invalid topologies (Colin Patrick McCabe via eli)
HADOOP-8204. TestHealthMonitor fails occasionally (todd)
BREAKDOWN OF HADOOP-7454 SUBTASKS

19
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/net/TestNetworkTopology.java
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@ -58,6 +58,25 @@ public class TestNetworkTopology extends TestCase {
assertEquals(cluster.getNumOfLeaves(), dataNodes.length);
}
public void testCreateInvalidTopology() throws Exception {
NetworkTopology invalCluster = new NetworkTopology();
DatanodeDescriptor invalDataNodes[] = new DatanodeDescriptor[] {
new DatanodeDescriptor(new DatanodeID("h1:5020"), "/d1/r1"),
new DatanodeDescriptor(new DatanodeID("h2:5020"), "/d1/r1"),
new DatanodeDescriptor(new DatanodeID("h3:5020"), "/d1")
};
invalCluster.add(invalDataNodes[0]);
invalCluster.add(invalDataNodes[1]);
try {
invalCluster.add(invalDataNodes[2]);
fail("expected InvalidTopologyException");
} catch (NetworkTopology.InvalidTopologyException e) {
assertEquals(e.getMessage(), "Invalid network topology. " +
"You cannot have a rack and a non-rack node at the same " +
"level of the network topology.");
}
}
public void testRacks() throws Exception {
assertEquals(cluster.getNumOfRacks(), 3);
assertTrue(cluster.isOnSameRack(dataNodes[0], dataNodes[1]));