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HDFS-2708. Stats for the # of blocks per DN. Contributed by Aaron T. Myers.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1326039 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2012-04-14 01:51:03 +00:00
parent 841fdc5628
commit 15fe3ae61b
3 changed files with 5 additions and 0 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -377,6 +377,8 @@ Release 2.0.0 - UNRELEASED
HDFS-3259. NameNode#initializeSharedEdits should populate shared edits dir
with edit log segments. (atm)
HDFS-2708. Stats for the # of blocks per DN. (atm)
OPTIMIZATIONS
HDFS-3024. Improve performance of stringification in addStoredBlock (todd)

1
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -5051,6 +5051,7 @@ public String getLiveNodes() {
innerinfo.put("adminState", node.getAdminState().toString());
innerinfo.put("nonDfsUsedSpace", node.getNonDfsUsed());
innerinfo.put("capacity", node.getCapacity());
innerinfo.put("numBlocks", node.numBlocks());
info.put(node.getHostName(), innerinfo);
}
return JSON.toString(info);

2
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java
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@ -101,6 +101,8 @@ public void testNameNodeMXBeanInfo() throws Exception {
assertTrue(((Long)liveNode.get("nonDfsUsedSpace")) > 0);
assertTrue(liveNode.containsKey("capacity"));
assertTrue(((Long)liveNode.get("capacity")) > 0);
assertTrue(liveNode.containsKey("numBlocks"));
assertTrue(((Long)liveNode.get("numBlocks")) == 0);
}
Assert.assertEquals(fsn.getLiveNodes(), alivenodeinfo);
// get attribute deadnodeinfo