[CASSANDRA-8174] cfhistograms doesn't work for some CFs

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Duplicate

Environment

Cassandra 2.1 | Linux XXX 3.2.0-4-amd64 #1 SMP Debian 3.2.60-1+deb7u3 x86_64 GNU/Linux | java version "1.7.0_51"

• Severity: Normal
• Assignee: Unassigned
• Reporter: Michał Jaszczyk
• Created: 23/Oct/14 15:22
• Updated: 16/Apr/19 09:31
• Resolved: 23/Oct/14 16:41

Description

After I upgraded cassandra to the latest version (2.0 -> 2.1), the nodetool cfhistograms doesn't work anymore. It doesn't work for most of my CFs but not for all of them, I cannot find the rule.

Details for one CF:

$ ./nodetool -h isu cfhistograms yyy xxx
nodetool: Unable to compute when histogram overflowed
See 'nodetool help' or 'nodetool help <command>'.

I have just created new CF and started inserting some data. The cfhistograms doesn't work for this table as well.

Example for different random CF which is similar to the one above:

$ ./nodetool cfhistograms yyy xxy
yyy/xxy histograms
Percentile  SSTables     Write Latency      Read Latency    Partition Size        Cell Count
                              (micros)          (micros)           (bytes)
50%             3.00             52.63           1634.53             11864               215
75%             3.00             62.67           2397.65             42510               770
95%             4.00             88.94           3317.58            454826              8239
98%             4.00            108.98           3317.58           2816159             61214
99%             4.00            127.18           3317.58           8409007            152321
Min             3.00              9.91            889.27               925                18
Max             4.00         216841.55           3317.58          17436917          12108970

Issue Links

• duplicates: CASSANDRA-8028 Unable to compute when histogram overflowed