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JDiff

JDiff Statistics

The percent change statistic reported for all elements in each API is defined recursively as follows:
Percentage difference = 100 * (added + removed + 2*changed)
                        -----------------------------------
                        sum of public elements in BOTH APIs
Where added is the number of packages added, removed is the number of packages removed, and changed is the number of packages changed. This definition is applied recursively for the classes and their program elements, so the value for a changed package will be less than 1, unless every class in that package has changed. The definition ensures that if all packages are removed and all new packages are added, the change will be 100%. Values are rounded here, so a value of 0% indicates a percentage difference of less than 0.5%.

The overall difference between the two APIs is approximately 49%.

Sections

Packages sorted by percentage difference
Classes and Interfaces sorted by percentage difference
Differences by number and type

Packages Sorted By Percentage Difference

Percentage
Difference
Package
63 org.apache.hadoop.hdfs.tools
54 org.apache.hadoop.hdfs
52 org.apache.hadoop.hdfs.server.namenode.metrics
49 org.apache.hadoop.hdfs.protocol
45 org.apache.hadoop.hdfs.server.protocol
43 org.apache.hadoop.hdfs.server.datanode
41 org.apache.hadoop.hdfs.server.namenode
17 org.apache.hadoop.hdfs.server.common
5 org.apache.hadoop.hdfs.server.datanode.metrics

Percentage
Difference
Frequency Percentage Frequency
5 0.1111111111111111 |
17 0.1111111111111111 |
41 0.1111111111111111 |
43 0.1111111111111111 |
45 0.1111111111111111 |
49 0.1111111111111111 |
52 0.1111111111111111 |
54 0.1111111111111111 |
63 0.1111111111111111 |


Classes and Interfaces Sorted By Percentage Difference

Percentage
Difference
Class or Interface
81 org.apache.hadoop.hdfs.server.namenode.metrics.FSNamesystemMetrics
74 org.apache.hadoop.hdfs.server.protocol.NamenodeProtocol
69 org.apache.hadoop.hdfs.protocol.QuotaExceededException
60 org.apache.hadoop.hdfs.DFSUtil
57 org.apache.hadoop.hdfs.tools.DFSck
53 org.apache.hadoop.hdfs.server.namenode.FSEditLog
51 org.apache.hadoop.hdfs.server.namenode.FSImage
50 org.apache.hadoop.hdfs.server.protocol.InterDatanodeProtocol
48 org.apache.hadoop.hdfs.protocol.DataTransferProtocol
43 org.apache.hadoop.hdfs.protocol.ClientProtocol
42 org.apache.hadoop.hdfs.DistributedFileSystem.DiskStatus
42 org.apache.hadoop.hdfs.server.common.Util
39 org.apache.hadoop.hdfs.server.namenode.DatanodeDescriptor
37 org.apache.hadoop.hdfs.protocol.BlockListAsLongs
36 org.apache.hadoop.hdfs.server.datanode.FSDatasetInterface
36 org.apache.hadoop.hdfs.server.namenode.FSNamesystem
34 org.apache.hadoop.hdfs.DFSClient
33 org.apache.hadoop.hdfs.protocol.ClientDatanodeProtocol
33 org.apache.hadoop.hdfs.server.datanode.DataNode
33 org.apache.hadoop.hdfs.server.namenode.SafeModeException
33 org.apache.hadoop.hdfs.server.protocol.DatanodeCommand
32 org.apache.hadoop.hdfs.server.namenode.NameNode
29 org.apache.hadoop.hdfs.server.datanode.FSDataset
28 org.apache.hadoop.hdfs.server.namenode.StreamFile
27 org.apache.hadoop.hdfs.server.common.GenerationStamp
27 org.apache.hadoop.hdfs.server.datanode.DataStorage
25 org.apache.hadoop.hdfs.server.common.HdfsConstants
25 org.apache.hadoop.hdfs.server.namenode.FsckServlet
24 org.apache.hadoop.hdfs.HftpFileSystem
23 org.apache.hadoop.hdfs.protocol.LocatedBlocks
23 org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode
22 org.apache.hadoop.hdfs.DistributedFileSystem
21 org.apache.hadoop.hdfs.protocol.Block
20 org.apache.hadoop.hdfs.server.namenode.GetImageServlet
16 org.apache.hadoop.hdfs.server.namenode.FileDataServlet
16 org.apache.hadoop.hdfs.server.namenode.metrics.FSNamesystemMBean
15 org.apache.hadoop.hdfs.protocol.LocatedBlock
15 org.apache.hadoop.hdfs.server.namenode.NamenodeFsck
14 org.apache.hadoop.hdfs.server.common.HdfsConstants.StartupOption
14 org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration
14 org.apache.hadoop.hdfs.tools.DFSAdmin
13 org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol
13 org.apache.hadoop.hdfs.server.namenode.metrics.NameNodeMetrics
12 org.apache.hadoop.hdfs.server.namenode.ListPathsServlet
12 org.apache.hadoop.hdfs.protocol.FSConstants
11 org.apache.hadoop.hdfs.server.common.Storage
11 org.apache.hadoop.hdfs.server.datanode.metrics.FSDatasetMBean
9 org.apache.hadoop.hdfs.server.common.StorageInfo
9 org.apache.hadoop.hdfs.server.namenode.UpgradeObjectNamenode
8 org.apache.hadoop.hdfs.server.protocol.NamespaceInfo
7 org.apache.hadoop.hdfs.server.namenode.CheckpointSignature
4 org.apache.hadoop.hdfs.server.datanode.metrics.DataNodeMetrics
3 org.apache.hadoop.hdfs.protocol.DatanodeInfo
3 org.apache.hadoop.hdfs.server.common.UpgradeManager

Percentage
Difference
Frequency Percentage Frequency
3 0.037037037037037035 |
4 0.018518518518518517 |
7 0.018518518518518517 |
8 0.018518518518518517 |
9 0.037037037037037035 |
11 0.037037037037037035 |
12 0.037037037037037035 |
13 0.037037037037037035 |
14 0.05555555555555555 |
15 0.037037037037037035 |
16 0.037037037037037035 |
20 0.018518518518518517 |
21 0.018518518518518517 |
22 0.018518518518518517 |
23 0.037037037037037035 |
24 0.018518518518518517 |
25 0.037037037037037035 |
27 0.037037037037037035 |
28 0.018518518518518517 |
29 0.018518518518518517 |
32 0.018518518518518517 |
33 0.07407407407407407 |
34 0.018518518518518517 |
36 0.037037037037037035 |
37 0.018518518518518517 |
39 0.018518518518518517 |
42 0.037037037037037035 |
43 0.018518518518518517 |
48 0.018518518518518517 |
50 0.018518518518518517 |
51 0.018518518518518517 |
53 0.018518518518518517 |
57 0.018518518518518517 |
60 0.018518518518518517 |
69 0.018518518518518517 |
74 0.018518518518518517 |
81 0.018518518518518517 |


Differences By Number and Type

The numbers of program elements (packages, classes. constructors, methods and fields) which are recorded as removed, added or changed includes only the highest-level program elements. That is, if a class with two methods was added, the number of methods added does not include those two methods, but the number of classes added does include that class.
Number of Differences
  Removals Additions Changes Total
Packages 0 5 9 14
Classes and Interfaces 7 70 54 131
Constructors 6 13 6 25
Methods 68 236 77 381
Fields 19 58 15 92
Total 100 382 161 643