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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 29%.

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
94 org.apache.hadoop.security
81 org.apache.hadoop.mapreduce.lib.partition
76 org.apache.hadoop.metrics.ganglia
66 org.apache.hadoop.filecache
59 org.apache.hadoop.mapreduce.lib.input
42 org.apache.hadoop.http
40 org.apache.hadoop.mapred.tools
39 org.apache.hadoop.mapreduce.lib.output
39 org.apache.hadoop.security.authorize
38 org.apache.hadoop.mapred.lib.db
38 org.apache.hadoop.ipc.metrics
25 org.apache.hadoop.ipc
22 org.apache.hadoop.conf
21 org.apache.hadoop.mapred
21 org.apache.hadoop.io.compress
21 org.apache.hadoop.io.compress.bzip2
19 org.apache.hadoop.util
18 org.apache.hadoop.metrics.spi
16 org.apache.hadoop
14 org.apache.hadoop.tools
14 org.apache.hadoop.mapreduce.lib.map
13 org.apache.hadoop.net
13 org.apache.hadoop.mapreduce
12 org.apache.hadoop.fs.permission
9 org.apache.hadoop.metrics
7 org.apache.hadoop.fs
6 org.apache.hadoop.mapred.lib
5 org.apache.hadoop.fs.s3
5 org.apache.hadoop.io.compress.zlib
3 org.apache.hadoop.io
3 org.apache.hadoop.fs.s3native
2 org.apache.hadoop.io.file.tfile

Percentage
Difference
Frequency Percentage Frequency
2 0.03125 |
3 0.0625 |
5 0.0625 |
6 0.03125 |
7 0.03125 |
9 0.03125 |
12 0.03125 |
13 0.0625 |
14 0.0625 |
16 0.03125 |
18 0.03125 |
19 0.03125 |
21 0.09375 |
22 0.03125 |
25 0.03125 |
38 0.0625 |
39 0.0625 |
40 0.03125 |
42 0.03125 |
59 0.03125 |
66 0.03125 |
76 0.03125 |
81 0.03125 |
94 0.03125 |


Classes and Interfaces Sorted By Percentage Difference

Percentage
Difference
Class or Interface
100 org.apache.hadoop.mapred.lib.db.DBWritable
95 org.apache.hadoop.security.UserGroupInformation
90 org.apache.hadoop.security.SecurityUtil
66 org.apache.hadoop.mapred.lib.db.DBInputFormat.NullDBWritable
64 org.apache.hadoop.metrics.ganglia.GangliaContext
60 org.apache.hadoop.mapred.lib.db.DBInputFormat.DBInputSplit
58 org.apache.hadoop.mapred.TaskLog
52 org.apache.hadoop.io.compress.bzip2.CBZip2InputStream
52 org.apache.hadoop.ipc.metrics.RpcMetrics
50 org.apache.hadoop.fs.s3.S3Exception
50 org.apache.hadoop.io.compress.BlockDecompressorStream
50 org.apache.hadoop.mapred.MapRunnable
50 org.apache.hadoop.mapred.Mapper
50 org.apache.hadoop.mapred.Partitioner
50 org.apache.hadoop.mapred.Reducer
50 org.apache.hadoop.mapreduce.Reducer.Context
44 org.apache.hadoop.util.GenericOptionsParser
44 org.apache.hadoop.util.ProcfsBasedProcessTree
44 org.apache.hadoop.ipc.Client
43 org.apache.hadoop.mapred.TaskTracker
42 org.apache.hadoop.ipc.RPC.Server
42 org.apache.hadoop.security.authorize.ServiceAuthorizationManager
35 org.apache.hadoop.io.compress.CompressionInputStream
33 org.apache.hadoop.filecache.DistributedCache
33 org.apache.hadoop.http.FilterInitializer
33 org.apache.hadoop.mapred.InvalidJobConfException
33 org.apache.hadoop.mapred.LineRecordReader.LineReader
33 org.apache.hadoop.security.authorize.Service
30 org.apache.hadoop.mapred.lib.db.DBInputFormat.DBRecordReader
30 org.apache.hadoop.ipc.RPC
29 org.apache.hadoop.io.file.tfile.TFile.Reader
27 org.apache.hadoop.fs.FileSystem.Statistics
26 org.apache.hadoop.mapred.JobHistory
25 org.apache.hadoop.mapred.JobTracker
25 org.apache.hadoop.io.compress.zlib.ZlibFactory
25 org.apache.hadoop.mapred.InputFormat
25 org.apache.hadoop.mapred.InputSplit
25 org.apache.hadoop.mapred.JobContext
25 org.apache.hadoop.mapred.OutputFormat
25 org.apache.hadoop.mapred.OutputLogFilter
25 org.apache.hadoop.mapred.TextOutputFormat
25 org.apache.hadoop.mapred.lib.IdentityMapper
25 org.apache.hadoop.mapred.lib.IdentityReducer
25 org.apache.hadoop.mapred.lib.InverseMapper
25 org.apache.hadoop.mapred.lib.LongSumReducer
25 org.apache.hadoop.mapred.lib.TokenCountMapper
25 org.apache.hadoop.util.DiskChecker
25 org.apache.hadoop.util.RunJar
23 org.apache.hadoop.util.Shell
22 org.apache.hadoop.mapreduce.JobContext
22 org.apache.hadoop.util.ServletUtil
21 org.apache.hadoop.io.IOUtils
20 org.apache.hadoop.mapred.OutputCommitter
20 org.apache.hadoop.mapred.TaskTracker.MapOutputServlet
20 org.apache.hadoop.mapred.lib.db.DBOutputFormat
20 org.apache.hadoop.mapred.lib.db.DBOutputFormat.DBRecordWriter
20 org.apache.hadoop.metrics.spi.OutputRecord
19 org.apache.hadoop.http.HttpServer
19 org.apache.hadoop.net.NetUtils
18 org.apache.hadoop.mapreduce.OutputCommitter
17 org.apache.hadoop.fs.LocalDirAllocator
17 org.apache.hadoop.util.LineReader
16 org.apache.hadoop.HadoopVersionAnnotation
16 org.apache.hadoop.mapred.SequenceFileInputFormat
16 org.apache.hadoop.mapred.lib.HashPartitioner
16 org.apache.hadoop.mapred.lib.NullOutputFormat
16 org.apache.hadoop.tools.HadoopArchives
15 org.apache.hadoop.io.compress.CompressionCodecFactory
15 org.apache.hadoop.io.compress.DecompressorStream
15 org.apache.hadoop.ipc.Server
14 org.apache.hadoop.fs.DF
14 org.apache.hadoop.mapred.FileOutputCommitter
14 org.apache.hadoop.mapred.LineRecordReader
14 org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter
14 org.apache.hadoop.util.LinuxMemoryCalculatorPlugin
12 org.apache.hadoop.io.compress.GzipCodec.GzipInputStream
12 org.apache.hadoop.mapred.TaskAttemptContext
12 org.apache.hadoop.mapred.TextInputFormat
12 org.apache.hadoop.mapreduce.lib.output.FileOutputFormat
12 org.apache.hadoop.util.MemoryCalculatorPlugin
11 org.apache.hadoop.conf.Configuration
11 org.apache.hadoop.fs.FileSystem
11 org.apache.hadoop.io.compress.zlib.BuiltInZlibDeflater
11 org.apache.hadoop.io.compress.zlib.ZlibCompressor
11 org.apache.hadoop.mapred.JobQueueInfo
11 org.apache.hadoop.mapred.tools.MRAdmin
11 org.apache.hadoop.net.DNS
11 org.apache.hadoop.util.VersionInfo
10 org.apache.hadoop.mapred.SequenceFileOutputFormat
10 org.apache.hadoop.mapred.TaskLogAppender
9 org.apache.hadoop.util.StringUtils
9 org.apache.hadoop.io.compress.CodecPool
9 org.apache.hadoop.ipc.RemoteException
8 org.apache.hadoop.fs.FileUtil
8 org.apache.hadoop.mapreduce.Job
8 org.apache.hadoop.mapred.JobHistory.JobInfo
8 org.apache.hadoop.fs.permission.FsPermission
8 org.apache.hadoop.io.compress.bzip2.BZip2Constants
8 org.apache.hadoop.mapred.JobStatus
7 org.apache.hadoop.mapred.Counters.Group
7 org.apache.hadoop.mapred.JobConf
7 org.apache.hadoop.mapred.lib.db.DBInputFormat
7 org.apache.hadoop.mapreduce.ReduceContext
7 org.apache.hadoop.util.HostsFileReader
6 org.apache.hadoop.fs.FSDataInputStream
6 org.apache.hadoop.mapred.ClusterStatus
6 org.apache.hadoop.mapreduce.lib.input.LineRecordReader
6 org.apache.hadoop.mapred.JobHistory.Keys
6 org.apache.hadoop.mapred.JobClient
5 org.apache.hadoop.util.Shell.ShellCommandExecutor
5 org.apache.hadoop.mapred.FileSplit
5 org.apache.hadoop.metrics.ContextFactory
4 org.apache.hadoop.io.compress.BZip2Codec
4 org.apache.hadoop.io.compress.Compressor
4 org.apache.hadoop.mapred.RunningJob
4 org.apache.hadoop.metrics.spi.AbstractMetricsContext
4 org.apache.hadoop.net.SocketInputStream
4 org.apache.hadoop.fs.Path
4 org.apache.hadoop.io.compress.bzip2.BZip2DummyCompressor
4 org.apache.hadoop.mapred.Counters
4 org.apache.hadoop.mapreduce.Counter
4 org.apache.hadoop.metrics.MetricsContext
4 org.apache.hadoop.io.SequenceFile
3 org.apache.hadoop.fs.RawLocalFileSystem
3 org.apache.hadoop.fs.HarFileSystem
3 org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner
3 org.apache.hadoop.io.SequenceFile.Writer
3 org.apache.hadoop.mapred.lib.db.DBConfiguration
3 org.apache.hadoop.fs.s3native.NativeS3FileSystem
2 org.apache.hadoop.mapred.FileInputFormat
2 org.apache.hadoop.fs.FilterFileSystem
2 org.apache.hadoop.fs.s3.S3FileSystem
2 org.apache.hadoop.io.WritableComparator
2 org.apache.hadoop.io.MD5Hash
2 org.apache.hadoop.fs.ChecksumFileSystem

Percentage
Difference
Frequency Percentage Frequency
2 0.044444444444444446 |
3 0.044444444444444446 |
4 0.08148148148148149 |
5 0.022222222222222223 |
6 0.037037037037037035 |
7 0.037037037037037035 |
8 0.044444444444444446 |
9 0.022222222222222223 |
10 0.014814814814814815 |
11 0.05925925925925926 |
12 0.037037037037037035 |
14 0.037037037037037035 |
15 0.022222222222222223 |
16 0.037037037037037035 |
17 0.014814814814814815 |
18 0.007407407407407408 |
19 0.014814814814814815 |
20 0.037037037037037035 |
21 0.007407407407407408 |
22 0.014814814814814815 |
23 0.007407407407407408 |
25 0.1111111111111111 |
26 0.007407407407407408 |
27 0.007407407407407408 |
29 0.007407407407407408 |
30 0.014814814814814815 |
33 0.037037037037037035 |
35 0.007407407407407408 |
42 0.014814814814814815 |
43 0.007407407407407408 |
44 0.022222222222222223 |
50 0.05185185185185185 |
52 0.014814814814814815 |
58 0.007407407407407408 |
60 0.007407407407407408 |
64 0.007407407407407408 |
66 0.007407407407407408 |
90 0.007407407407407408 |
95 0.007407407407407408 |
100 0.007407407407407408 |


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 19 32 51
Classes and Interfaces 6 158 135 299
Constructors 2 24 16 42
Methods 41 322 61 424
Fields 2 103 6 111
Total 51 626 250 927