Michał Jaszczyk created CASSANDRA-8174:
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Summary: cfhistograms doesn't work for some CFs
Key: CASSANDRA-8174
URL: https://issues.apache.org/jira/browse/CASSANDRA-8174
Project: Cassandra
Issue Type: Bug
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"
Reporter: Michał Jaszczyk
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:
{code}
$ ./nodetool -h isu cfhistograms yyy xxx
nodetool: Unable to compute when histogram overflowed
See 'nodetool help' or 'nodetool help <command>'.
{code}
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:
{code}
$ ./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
{code}
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