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HDFS-3158. LiveNodes member of NameNodeMXBean should list non-DFS used space and capacity per DN. Contributed by Aaron T. Myers. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1306635 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2012-03-28 22:59:52 +00:00
parent 99a68a1423
commit 17d22e6dc4
3 changed files with 14 additions and 0 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -279,6 +279,9 @@ Release 2.0.0 - UNRELEASED
HDFS-3155. Clean up FSDataset implemenation related code. (szetszwo)
HDFS-3158. LiveNodes member of NameNodeMXBean should list non-DFS used
space and capacity per DN. (atm)
OPTIMIZATIONS
HDFS-3024. Improve performance of stringification in addStoredBlock (todd)

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -5072,6 +5072,8 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
innerinfo.put("lastContact", getLastContact(node));
innerinfo.put("usedSpace", getDfsUsed(node));
innerinfo.put("adminState", node.getAdminState().toString());
innerinfo.put("nonDfsUsedSpace", node.getNonDfsUsed());
innerinfo.put("capacity", node.getCapacity());
info.put(node.getHostName(), innerinfo);
}
return JSON.toString(info);

9
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java
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@ -93,6 +93,15 @@ public class TestNameNodeMXBean {
// get attribute alivenodeinfo
String alivenodeinfo = (String) (mbs.getAttribute(mxbeanName,
"LiveNodes"));
Map<String, Map<String, Object>> liveNodes =
(Map<String, Map<String, Object>>) JSON.parse(alivenodeinfo);
assertTrue(liveNodes.size() > 0);
for (Map<String, Object> liveNode : liveNodes.values()) {
assertTrue(liveNode.containsKey("nonDfsUsedSpace"));
assertTrue(((Long)liveNode.get("nonDfsUsedSpace")) > 0);
assertTrue(liveNode.containsKey("capacity"));
assertTrue(((Long)liveNode.get("capacity")) > 0);
}
Assert.assertEquals(fsn.getLiveNodes(), alivenodeinfo);
// get attribute deadnodeinfo
String deadnodeinfo = (String) (mbs.getAttribute(mxbeanName,