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https://issues.apache.org/jira/browse/CASSANDRA-7090?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jackson Chung updated CASSANDRA-7090:
-------------------------------------

    Attachment: patch-7090.v20

attaching a v2.0 version (since we won't be using 2.1 soon, our next upgrade is 
2.0)

sample nodetool output (obviously the real value is the logging actually work, 
and it does)

{noformat}
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool getLoggingLevels

Logger Name                                        Log Level
root                                                    INFO
org.apache.thrift.server.TNonblockingServer            ERROR
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool setlogginglevel 
org.apache.cassandra.gms TRACE
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool setlogginglevel 
org.apache.cassandra.service DEBUG
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool getLoggingLevels

Logger Name                                        Log Level
root                                                    INFO
org.apache.cassandra.service                           DEBUG
org.apache.thrift.server.TNonblockingServer            ERROR
org.apache.cassandra.gms                               TRACE
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool setlogginglevel 
org.apache.cassandra.service
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool getLoggingLevels

Logger Name                                        Log Level
root                                                    INFO
org.apache.thrift.server.TNonblockingServer            ERROR
org.apache.cassandra.gms                               TRACE
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool setlogginglevel 
org.apache.cassandra.db BLAH
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool getLoggingLevels

Logger Name                                        Log Level
root                                                    INFO
org.apache.thrift.server.TNonblockingServer            ERROR
org.apache.cassandra.db                                DEBUG
org.apache.cassandra.gms                               TRACE
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool setlogginglevel
jackson@faranth:~/work/cassandra-2.0$ ./bin/nodetool getLoggingLevels

Logger Name                                        Log Level
root                                                    INFO
org.apache.thrift.server.TNonblockingServer            ERROR
{noformat}

> Add ability to set/get logging levels to nodetool 
> --------------------------------------------------
>
>                 Key: CASSANDRA-7090
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7090
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Jackson Chung
>            Priority: Minor
>         Attachments: logging.diff, patch-7090.v20
>
>
> While it is nice to use logback (per #CASSANDRA-5883) and with the autoreload 
> feature, in some cases ops/admin may not have the permission or ability to 
> modify the configuration file(s). Or the files are controlled by puppet/chef 
> so it is not desirable to modify them manually.
> There is already an existing operation for setLoggingLevel in the 
> StorageServuceMBean , so that's easy to expose that to the nodetool
> But what was lacking was ability to see the current log level settings for 
> various loggers. 
> The attached diff aims to do 3 things:
> # add JMX getLoggingLevels --> return a map of current loggers and the 
> corresponding levels
> # expose both getLoggingLevels and setLoggingLevel to nodetool. In 
> particular, the setLoggingLevel behave as follows:
> #* If both classQualifer and level are empty/null, it will reload the 
> configuration to reset.
> #* If classQualifer is not empty but level is empty/null, it will set the 
> level to null for the defined classQualifer
> #* The logback configuration should have < jmxConfigurator /> set
> The diff is based on the master branch which uses logback, soit is not 
> applicable to 2.0 or 1.2. (2.1 is ok) Though it would be nice to have the 
> same ability for 2.0.



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