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From "Chris Burroughs (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-2123) nodetool cfhistograms write/read latency columns are reversed
Date Mon, 07 Feb 2011 15:54:30 GMT
nodetool cfhistograms write/read latency columns are reversed
-------------------------------------------------------------

                 Key: CASSANDRA-2123
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2123
             Project: Cassandra
          Issue Type: Bug
          Components: Tools
    Affects Versions: 0.7.1
            Reporter: Chris Burroughs
            Priority: Minor


As first reported Oleg Proudnikov in the thread http://www.mail-archive.com/user@cassandra.apache.org/msg09607.html
the columns for read and write latency are reversed in the output of cfhistograms.  The Mbean
values are correct.

Example output during stress.java insert test.
{noformat}
Keyspace1/Standard1 histograms
Offset      SSTables     Write Latency      Read Latency          Row Size      Column Count
1                  0                 0                 0                 0               
 0
2                  0                 0                 1                 0               
 0
3                  0                 0               998                 0               
 0
4                  0                 0              7729                 0               
 0
5                  0                 0             22844                 0               
 0
6                  0                 0             44439                 0           6524792
7                  0                 0             64576                 0               
 0
8                  0                 0             79000                 0               
 0
10                 0                 0            139338                 0               
 0
12                 0                 0             84675                 0               
 0
14                 0                 0             36928                 0               
 0
17                 0                 0             16547                 0               
 0
20                 0                 0              3926                 0               
 0
24                 0                 0              1681                 0               
 0
29                 0                 0               776                 0               
 0
35                 0                 0               357                 0               
 0
42                 0                 0               172                 0               
 0
50                 0                 0                51                 0               
 0
60                 0                 0                15                 0               
 0
72                 0                 0                10                 0               
 0
86                 0                 0                 4                 0               
 0
103                0                 0                 6                 0               
 0
124                0                 0                 3                 0               
 0
149                0                 0                 1                 0               
 0
179                0                 0                 0                 0               
 0
215                0                 0                 1                 0               
 0
258                0                 0                 1                 0               
 0
310                0                 0                 0                 0               
 0
372                0                 0                 1           6524792               
 0
446                0                 0                 2                 0               
 0
535                0                 0                 0                 0               
 0
642                0                 0                 0                 0               
 0
770                0                 0                 0                 0               
 0
924                0                 0                 0                 0               
 0
1109               0                 0                 1                 0               
 0
1331               0                 0                 0                 0               
 0
{noformat}

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