Maxwell Guo created CASSANDRA-18955:
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Summary: TableHistograms output a lot of repeated information
Key: CASSANDRA-18955
URL: https://issues.apache.org/jira/browse/CASSANDRA-18955
Project: Cassandra
Issue Type: Bug
Components: Tool/nodetool
Reporter: Maxwell Guo
Assignee: Maxwell Guo
Attachments: 1.png
This patch aims to fix two issues:
1. the original output of nodetool tablehistograms with no tables specified is
wrong , the output will contains many repeated informations. See the picture
below.
The reason is that for
[tablesList.keys()|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/tools/nodetool/TableHistograms.java#L80]
will give a Multiset output as tablesList is a Multimap.
2. as we have DISCUSS for "Change the useage of nodetool tablehistograms" , for
arguments more than two, the output of tablehistograms will be all of the
tables, it's a bug that we should fix. We can see that the
[description|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/tools/nodetool/TableHistograms.java#L42]
of tablehistograms is ,out put the statistic histograms for the given table.
and the format of the argument is like
[tthis|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/tools/nodetool/TableHistograms.java#L45]
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