apache / hbase-filesystem
File Change Frequency

File change frequency (churn) shows the distribution of file updates (days with at least one commit).

Overview
File Change Frequency Overall
  • There are 16 files with 2,363 lines of code.
    • 0 files changed more than 100 times (0 lines of code)
    • 0 files changed 51-100 times (0 lines of code)
    • 0 files changed 21-50 times (0 lines of code)
    • 3 files changed 6-20 times (1,439 lines of code)
    • 13 files changed 1-5 times (924 lines of code)
0% | 0% | 0% | 60% | 39%
Legend:
101+
51-100
21-50
6-20
1-5

explore: grouped by folders | grouped by update frequency | data
Contributors Count Frequency Overall
  • There are 16 files with 2,363 lines of code.
    • 0 files changed by more than 25 contributors (0 lines of code)
    • 0 files changed by 11-25 contributors (0 lines of code)
    • 3 files changed by 6-10 contributors (1,439 lines of code)
    • 3 files changed by 2-5 contributors (352 lines of code)
    • 10 files changed by 1 contributor (572 lines of code)
0% | 0% | 60% | 14% | 24%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
java, xml, md, txt, sh, gitignore, json, yml, properties, yaml
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
java0% | 0% | 0% | 60% | 39%
File Change Frequency per Logical Decomposition
primary
primary (file change frequency)
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
hbase-oss0% | 0% | 0% | 68% | 31%
hadoop-testutils0% | 0% | 0% | 0% | 100%
Most Frequently Changed Files (Top 16)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
ZKTreeLockManager.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 307 22 2019-05-09 2022-03-03 12 6 mackrorysd@gmail.com ankitsinghal59@gmail.com
HBaseObjectStoreSemantics.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 809 94 2019-05-09 2022-09-10 11 9 mackrorysd@gmail.com stevel@cloudera.com
TreeLockManager.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 323 16 2019-05-09 2021-11-10 9 6 mackrorysd@gmail.com elserj@apache.org
Constants.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 16 - 2019-05-09 2022-09-10 3 3 mackrorysd@gmail.com stevel@cloudera.com
AutoLock.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 123 15 2019-05-09 2022-09-10 3 3 mackrorysd@gmail.com stevel@cloudera.com
EmbeddedS3.java
in hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss
 213 20 2021-10-05 2022-05-16 2 2 elserj@apache.org stevel@cloudera.com
package-info.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 5 - 2019-05-09 2019-05-09 1 1 mackrorysd@gmail.com mackrorysd@gmail.com
package-info.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 5 - 2019-05-09 2019-05-09 1 1 mackrorysd@gmail.com mackrorysd@gmail.com
MetricsOSSSource.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics
 19 - 2021-06-02 2021-06-02 1 1 szabolcs@cloudera.com szabolcs@cloudera.com
FunctionsRaisingIOE.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 20 1 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
FileStatusBindingSupport.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 32 6 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
Hadoop33EmbeddedS3ClientFactory.java
in hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss
 34 4 2022-06-15 2022-06-15 1 1 stevel@cloudera.com stevel@cloudera.com
LockedOpenFileBuilder.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 43 4 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
MetricsOSSSourceImpl.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics
 52 7 2021-06-02 2021-06-02 1 1 szabolcs@cloudera.com szabolcs@cloudera.com
LockingFSBuilderWrapper.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 150 22 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
LockedCreateFileBuilder.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 212 32 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
Files With Most Contributors (Top 16)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
HBaseObjectStoreSemantics.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 809 94 2019-05-09 2022-09-10 11 9 mackrorysd@gmail.com stevel@cloudera.com
ZKTreeLockManager.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 307 22 2019-05-09 2022-03-03 12 6 mackrorysd@gmail.com ankitsinghal59@gmail.com
TreeLockManager.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 323 16 2019-05-09 2021-11-10 9 6 mackrorysd@gmail.com elserj@apache.org
AutoLock.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 123 15 2019-05-09 2022-09-10 3 3 mackrorysd@gmail.com stevel@cloudera.com
Constants.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 16 - 2019-05-09 2022-09-10 3 3 mackrorysd@gmail.com stevel@cloudera.com
EmbeddedS3.java
in hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss
 213 20 2021-10-05 2022-05-16 2 2 elserj@apache.org stevel@cloudera.com
Hadoop33EmbeddedS3ClientFactory.java
in hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss
 34 4 2022-06-15 2022-06-15 1 1 stevel@cloudera.com stevel@cloudera.com
MetricsOSSSource.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics
 19 - 2021-06-02 2021-06-02 1 1 szabolcs@cloudera.com szabolcs@cloudera.com
MetricsOSSSourceImpl.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics
 52 7 2021-06-02 2021-06-02 1 1 szabolcs@cloudera.com szabolcs@cloudera.com
FunctionsRaisingIOE.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 20 1 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
LockedCreateFileBuilder.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 212 32 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
LockedOpenFileBuilder.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 43 4 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
package-info.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 5 - 2019-05-09 2019-05-09 1 1 mackrorysd@gmail.com mackrorysd@gmail.com
FileStatusBindingSupport.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 32 6 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
LockingFSBuilderWrapper.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 150 22 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
package-info.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 5 - 2019-05-09 2019-05-09 1 1 mackrorysd@gmail.com mackrorysd@gmail.com
Files With Least Contributors (Top 16)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
LockedCreateFileBuilder.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 212 32 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
LockingFSBuilderWrapper.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 150 22 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
MetricsOSSSourceImpl.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics
 52 7 2021-06-02 2021-06-02 1 1 szabolcs@cloudera.com szabolcs@cloudera.com
LockedOpenFileBuilder.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 43 4 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
Hadoop33EmbeddedS3ClientFactory.java
in hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss
 34 4 2022-06-15 2022-06-15 1 1 stevel@cloudera.com stevel@cloudera.com
FileStatusBindingSupport.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 32 6 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
FunctionsRaisingIOE.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 20 1 2022-09-10 2022-09-10 1 1 stevel@cloudera.com stevel@cloudera.com
MetricsOSSSource.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics
 19 - 2021-06-02 2021-06-02 1 1 szabolcs@cloudera.com szabolcs@cloudera.com
package-info.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 5 - 2019-05-09 2019-05-09 1 1 mackrorysd@gmail.com mackrorysd@gmail.com
package-info.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 5 - 2019-05-09 2019-05-09 1 1 mackrorysd@gmail.com mackrorysd@gmail.com
EmbeddedS3.java
in hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss
 213 20 2021-10-05 2022-05-16 2 2 elserj@apache.org stevel@cloudera.com
AutoLock.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 123 15 2019-05-09 2022-09-10 3 3 mackrorysd@gmail.com stevel@cloudera.com
Constants.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 16 - 2019-05-09 2022-09-10 3 3 mackrorysd@gmail.com stevel@cloudera.com
TreeLockManager.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 323 16 2019-05-09 2021-11-10 9 6 mackrorysd@gmail.com elserj@apache.org
ZKTreeLockManager.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync
 307 22 2019-05-09 2022-03-03 12 6 mackrorysd@gmail.com ankitsinghal59@gmail.com
HBaseObjectStoreSemantics.java
in hbase-oss/src/main/java/org/apache/hadoop/hbase/oss
 809 94 2019-05-09 2022-09-10 11 9 mackrorysd@gmail.com stevel@cloudera.com
Correlations

File Size vs. Number of Changes: 16 points

hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/Constants.java x: 16 lines of code y: 3 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/FileStatusBindingSupport.java x: 32 lines of code y: 1 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/FunctionsRaisingIOE.java x: 20 lines of code y: 1 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/HBaseObjectStoreSemantics.java x: 809 lines of code y: 11 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/LockedCreateFileBuilder.java x: 212 lines of code y: 1 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/LockedOpenFileBuilder.java x: 43 lines of code y: 1 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/LockingFSBuilderWrapper.java x: 150 lines of code y: 1 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/AutoLock.java x: 123 lines of code y: 3 # changes hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss/Hadoop33EmbeddedS3ClientFactory.java x: 34 lines of code y: 1 # changes hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss/EmbeddedS3.java x: 213 lines of code y: 2 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/ZKTreeLockManager.java x: 307 lines of code y: 12 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/TreeLockManager.java x: 323 lines of code y: 9 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics/MetricsOSSSourceImpl.java x: 52 lines of code y: 1 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/package-info.java x: 5 lines of code y: 1 # changes
12.0
# changes
  min: 1.0
  average: 3.13
  25th percentile: 1.0
  median: 1.0
  75th percentile: 3.0
  max: 12.0
0 809.0
lines of code
min: 5.0 | average: 147.69 | 25th percentile: 19.25 | median: 47.5 | 75th percentile: 212.75 | max: 809.0

Number of Contributors vs. Number of Changes: 16 points

hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/Constants.java x: 3 # contributors y: 3 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/FileStatusBindingSupport.java x: 1 # contributors y: 1 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/HBaseObjectStoreSemantics.java x: 9 # contributors y: 11 # changes hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss/EmbeddedS3.java x: 2 # contributors y: 2 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/ZKTreeLockManager.java x: 6 # contributors y: 12 # changes hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/TreeLockManager.java x: 6 # contributors y: 9 # changes
12.0
# changes
  min: 1.0
  average: 3.13
  25th percentile: 1.0
  median: 1.0
  75th percentile: 3.0
  max: 12.0
0 9.0
# contributors
min: 1.0 | average: 2.44 | 25th percentile: 1.0 | median: 1.0 | 75th percentile: 3.0 | max: 9.0

Number of Contributors vs. File Size: 16 points

hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/Constants.java x: 3 # contributors y: 16 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/FileStatusBindingSupport.java x: 1 # contributors y: 32 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/FunctionsRaisingIOE.java x: 1 # contributors y: 20 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/HBaseObjectStoreSemantics.java x: 9 # contributors y: 809 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/LockedCreateFileBuilder.java x: 1 # contributors y: 212 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/LockedOpenFileBuilder.java x: 1 # contributors y: 43 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/LockingFSBuilderWrapper.java x: 1 # contributors y: 150 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/AutoLock.java x: 3 # contributors y: 123 lines of code hadoop-testutils/src/main/java/org/apache/hadoop/hbase/oss/EmbeddedS3.java x: 2 # contributors y: 213 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/ZKTreeLockManager.java x: 6 # contributors y: 307 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/sync/TreeLockManager.java x: 6 # contributors y: 323 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics/MetricsOSSSource.java x: 1 # contributors y: 19 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/metrics/MetricsOSSSourceImpl.java x: 1 # contributors y: 52 lines of code hbase-oss/src/main/java/org/apache/hadoop/hbase/oss/package-info.java x: 1 # contributors y: 5 lines of code
809.0
lines of code
  min: 5.0
  average: 147.69
  25th percentile: 19.25
  median: 47.5
  75th percentile: 212.75
  max: 809.0
0 9.0
# contributors
min: 1.0 | average: 2.44 | 25th percentile: 1.0 | median: 1.0 | 75th percentile: 3.0 | max: 9.0