hadoop-common-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From e..@apache.org
Subject svn commit: r1152972 - in /hadoop/common/branches/branch-0.20-security: CHANGES.txt src/hdfs/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java src/test/org/apache/hadoop/hdfs/TestQuota.java
Date Mon, 01 Aug 2011 23:59:57 GMT
Author: eli
Date: Mon Aug  1 23:59:56 2011
New Revision: 1152972

URL: http://svn.apache.org/viewvc?rev=1152972&view=rev
Log:
HDFS-2053. Bug in INodeDirectory#computeContentSummary warning. Contributed by Michael Noll

Modified:
    hadoop/common/branches/branch-0.20-security/CHANGES.txt
    hadoop/common/branches/branch-0.20-security/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
    hadoop/common/branches/branch-0.20-security/src/test/org/apache/hadoop/hdfs/TestQuota.java

Modified: hadoop/common/branches/branch-0.20-security/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-security/CHANGES.txt?rev=1152972&r1=1152971&r2=1152972&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.20-security/CHANGES.txt (original)
+++ hadoop/common/branches/branch-0.20-security/CHANGES.txt Mon Aug  1 23:59:56 2011
@@ -21,6 +21,9 @@ Release 0.20.205.0 - unreleased
     MAPREDUCE-2650. back-port MAPREDUCE-2238 to 0.20-security. 
     (Sherry Chen via mahadev)
 
+    HDFS-2053. Bug in INodeDirectory#computeContentSummary warning
+    (Michael Noll via eli)
+
   IMPROVEMENTS
 
     MAPREDUCE-7343. Make the number of warnings accepted by test-patch

Modified: hadoop/common/branches/branch-0.20-security/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-security/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java?rev=1152972&r1=1152971&r2=1152972&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.20-security/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
(original)
+++ hadoop/common/branches/branch-0.20-security/src/hdfs/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java
Mon Aug  1 23:59:56 2011
@@ -333,20 +333,31 @@ class INodeDirectory extends INode {
 
   /** {@inheritDoc} */
   long[] computeContentSummary(long[] summary) {
+    // Walk through the children of this node, using a new summary array
+    // for the (sub)tree rooted at this node
+    assert 4 == summary.length;
+    long[] subtreeSummary = new long[]{0,0,0,0};
     if (children != null) {
       for (INode child : children) {
-        child.computeContentSummary(summary);
+        child.computeContentSummary(subtreeSummary);
       }
     }
     if (this instanceof INodeDirectoryWithQuota) {
       // Warn if the cached and computed diskspace values differ
       INodeDirectoryWithQuota node = (INodeDirectoryWithQuota)this;
       long space = node.diskspaceConsumed();
-      if (-1 != node.getDsQuota() && space != summary[3]) {
+      assert -1 == node.getDsQuota() || space == subtreeSummary[3];
+      if (-1 != node.getDsQuota() && space != subtreeSummary[3]) {
         NameNode.LOG.warn("Inconsistent diskspace for directory "
-          +getLocalName()+". Cached: "+space+" Computed: "+summary[3]);
+          +getLocalName()+". Cached: "+space+" Computed: "+subtreeSummary[3]);
       }
     }
+
+    // update the passed summary array with the values for this node's subtree
+    for (int i = 0; i < summary.length; i++) {
+      summary[i] += subtreeSummary[i];
+    }
+
     summary[2]++;
     return summary;
   }

Modified: hadoop/common/branches/branch-0.20-security/src/test/org/apache/hadoop/hdfs/TestQuota.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-0.20-security/src/test/org/apache/hadoop/hdfs/TestQuota.java?rev=1152972&r1=1152971&r2=1152972&view=diff
==============================================================================
--- hadoop/common/branches/branch-0.20-security/src/test/org/apache/hadoop/hdfs/TestQuota.java
(original)
+++ hadoop/common/branches/branch-0.20-security/src/test/org/apache/hadoop/hdfs/TestQuota.java
Mon Aug  1 23:59:56 2011
@@ -690,7 +690,57 @@ public class TestQuota extends TestCase 
       // verify increase in space
       c = dfs.getContentSummary(dstPath);
       assertEquals(c.getSpaceConsumed(), 5 * fileSpace + file2Len);
-      
+
+      // Test HDFS-2053 :
+
+      // Create directory /hdfs-2053
+      final Path quotaDir2053 = new Path("/hdfs-2053");
+      assertTrue(dfs.mkdirs(quotaDir2053));
+
+      // Create subdirectories /hdfs-2053/{A,B,C}
+      final Path quotaDir2053_A = new Path(quotaDir2053, "A");
+      assertTrue(dfs.mkdirs(quotaDir2053_A));
+      final Path quotaDir2053_B = new Path(quotaDir2053, "B");
+      assertTrue(dfs.mkdirs(quotaDir2053_B));
+      final Path quotaDir2053_C = new Path(quotaDir2053, "C");
+      assertTrue(dfs.mkdirs(quotaDir2053_C));
+
+      // Factors to vary the sizes of test files created in each subdir.
+      // The actual factors are not really important but they allow us to create
+      // identifiable file sizes per subdir, which helps during debugging.
+      int sizeFactorA = 1;
+      int sizeFactorB = 2;
+      int sizeFactorC = 4;
+
+      // Set space quota for subdirectory C
+      dfs.setQuota(quotaDir2053_C, FSConstants.QUOTA_DONT_SET,
+          (sizeFactorC + 1) * fileSpace);
+      c = dfs.getContentSummary(quotaDir2053_C);
+      assertEquals(c.getSpaceQuota(), (sizeFactorC + 1) * fileSpace);
+
+      // Create a file under subdirectory A
+      DFSTestUtil.createFile(dfs, new Path(quotaDir2053_A, "fileA"),
+          sizeFactorA * fileLen, replication, 0);
+      c = dfs.getContentSummary(quotaDir2053_A);
+      assertEquals(c.getSpaceConsumed(), sizeFactorA * fileSpace);
+
+      // Create a file under subdirectory B
+      DFSTestUtil.createFile(dfs, new Path(quotaDir2053_B, "fileB"),
+          sizeFactorB * fileLen, replication, 0);
+      c = dfs.getContentSummary(quotaDir2053_B);
+      assertEquals(c.getSpaceConsumed(), sizeFactorB * fileSpace);
+
+      // Create a file under subdirectory C (which has a space quota)
+      DFSTestUtil.createFile(dfs, new Path(quotaDir2053_C, "fileC"),
+          sizeFactorC * fileLen, replication, 0);
+      c = dfs.getContentSummary(quotaDir2053_C);
+      assertEquals(c.getSpaceConsumed(), sizeFactorC * fileSpace);
+
+      // Check space consumed for /hdfs-2053
+      c = dfs.getContentSummary(quotaDir2053);
+      assertEquals(c.getSpaceConsumed(),
+          (sizeFactorA + sizeFactorB + sizeFactorC) * fileSpace);
+
     } finally {
       cluster.shutdown();
     }



Mime
View raw message