http://svn.apache.org/repos/asf/cassandra/trunk

Statistics cover Tuesday 3 Mar 2009 to Tuesday 27 Dec 2011
During this 1030-day reporting period a total of 14 people made commits to cassandra repository

1. Main page | 2. Detailed info



Daily commit statistics

2

3


1

1

6


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0

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10



7


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1

1

1

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1
8


0

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9


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6

4

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2

4

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Hours 0-6 Hours 6-12 Hours 12-18 Hours 18-24



cassandra hourly commit stats

8,2% 6,3% 2,3% 2,2% 4,2% 3,4% 2,9% 2,1% 1,0% 0,5% 0,4% 0,9% 0,7% 0,4% 0,4% 1,4% 4,1% 7,2% 9,5% 8,3% 7,5% 8,5% 9,1% 8,7%
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23



Commit activity by weekdays

Monday 14,1% Tuesday 19,2% Wednesday 20,1% Thursday 16,6% Friday 19,6% Saturday 6,9% Sunday 3,4%



Activity Statistics

  Name Number of Commits Sample log message
1 jbellis 2219 "edit cl space comments"
2 eevans 563 "functional tests for truncate and describe_ring (avro) Patch by Nirmal..."
3 gdusbabek 387 "force time zone to eastern in RoundTripTest"
4 slebresne 216 "Make AbstractBounds.normalize de-overlapp overlapping ranges patch..."
5 brandonwilliams 114 "Add badness threshold to the dynamic snitch for replica 'pinning'. Patch..."
6 xedin 36 "Fix inconsistency of the CLI syntax when {} should be used instead..."
7 goffinet 32 "ColumnFamily.onStart() was not checking files related to only it's column..."
8 jake 22 "Add counter support to stress tool Patch by Sylvain Lebresne; reviewed..."
9 alakshman 22 "Removed JDK7 dependencies."
10 johan 20 "Update word count example to work with changes in trunk. Word count..."
11 junrao 15 "add AntiEntropyService; patched by Stu Hood, reviewed by junrao..."
12 jaakko 5 "fixed broken test. CASSANDRA-644"
13 pmalik 3 "Add build script and make sure it works"
14 joes 1 "cassandra goes tlp"



Time of day stats

  Nightcrawlers
(Hours 0-6)
Early birds
(Hours 6-12)
Afternoon shift
(Hours 12-18)
Evening commiters
(Hours 18-24)
1jbellis - 660
jbellis - 194
jbellis - 248
jbellis - 1117
2eevans - 177
slebresne - 39
gdusbabek - 113
eevans - 320
3gdusbabek - 59
eevans - 28
slebresne - 90
gdusbabek - 212
4brandonwilliams - 37
alakshman - 10
eevans - 38
slebresne - 84
5goffinet - 12
goffinet - 6
johan - 9
brandonwilliams - 68
6xedin - 7
brandonwilliams - 4
jake - 7
xedin - 22
7junrao - 6
jaakko - 3
xedin - 6
jake - 14
8slebresne - 3
gdusbabek - 3
brandonwilliams - 5
goffinet - 11
9pmalik - 3
junrao - 2
goffinet - 3
alakshman - 11
10johan - 1
xedin - 1
jaakko - 1
johan - 9



cassandra developer relation map

cassandra relation map generated by mIRCStats v1.25
• Line thickness corresponds to the commit relation strength
• Line colors show the relation importance for each person
  More important           Less important




Long term commit statistics - two month sections

238
153
211
170
251
304
211
228
318
382
132
181
270
112
188
163
(Est.
153)
143

3 - 4
2009
5 - 6
2009
7 - 8
2009
9 - 10
2009
11 - 12
2009
1 - 2
2010
3 - 4
2010
5 - 6
2010
7 - 8
2010
9 - 10
2010
11 - 12
2010
1 - 2
2011
3 - 4
2011
5 - 6
2011
7 - 8
2011
9 - 10
2011
11 - 12
2011
Total number of commits: 3655
Estimate for this section: 153 commits.



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Long term statsLine lengths
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