Manoj Mainali created CASSANDRA-5734:
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Summary: Print usage when command is not specified in nodetool
instead of connection failure
Key: CASSANDRA-5734
URL: https://issues.apache.org/jira/browse/CASSANDRA-5734
Project: Cassandra
Issue Type: Improvement
Affects Versions: 1.2.6
Reporter: Manoj Mainali
Priority: Minor
nodetool command tries to establish connection to the cassandra node before
ensuring that the command is valid. Therefore, when no command is specified it
will print
{noformat}
$ bin/nodetool
Failed to connect to '127.0.0.1:7199': Connection refused
{noformat}
That means we need to have a running instance of C* to check the available
commands. But this is a syntax error and usage can be displayed (which is the
result even if a C* is running) even without a C* instance. Probably, it would
be better to make sure that the command sytnax is valid and print usage if not.
By doing this, we can easily check the available commands.
Additionally, same should apply for the help command. Since, help will not be
connecting to the C* instance, we should not have a dependency on a running C*.
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