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Date: Thu, 10 Nov 2011 02:05:51 +0000 (UTC)
From: "Jackson Chung (Commented) (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Commented] (CASSANDRA-3220) add describe_ring to cli
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    [ https://issues.apache.org/jira/browse/CASSANDRA-3220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147444#comment-13147444 ] 

Jackson Chung commented on CASSANDRA-3220:
------------------------------------------

ok, i have done a nodetool version. most of the thing work.. except somehow jconsole/jmxterm doesn't. First the nodetool output:

$ nodetool -h zaranth -p 8199  describering Keyspace1
TokenRange: 
        TokenRange(start_token:0, end_token:56713727820156410577229101238628035242, endpoints:[184.106.233.162], rpc_endpoints:[184.106.233.162], endpoint_details:[EndpointDetails(host:184.106.233.162, datacenter:datacenter1, rack:rack1)])
        TokenRange(start_token:56713727820156410577229101238628035242, end_token:113427455640312821154458202477256070485, endpoints:[184.106.203.196], rpc_endpoints:[184.106.203.196], endpoint_details:[EndpointDetails(host:184.106.203.196, datacenter:datacenter1, rack:rack1)])
        TokenRange(start_token:113427455640312821154458202477256070485, end_token:0, endpoints:[184.106.204.143], rpc_endpoints:[184.106.204.143], endpoint_details:[EndpointDetails(host:184.106.204.143, datacenter:datacenter1, rack:rack1)])


$nodetool -h zaranth -p 8199  describering 
Missing keyspace argument for describering.
usage: java org.apache.cassandra.tools.NodeCmd --host <arg> <command>
...


$ nodetool -h zaranth -p 8199  describering system
 There is no ring for the keyspace: system
usage: java org.apache.cassandra.tools.NodeCmd --host <arg> <command>
...


$ nodetool -h zaranth -p 8199  describering thisdoesnotexist
There is no ring for the keyspace: thisdoesnotexist
usage: java org.apache.cassandra.tools.NodeCmd --host <arg> <command>


now the problem with jconsole/jmxterm:
{noformat}
$>run getTokenRanges Keyspace1 
#calling operation getTokenRanges of mbean org.apache.cassandra.db:type=StorageService
org.cyclopsgroup.jmxterm.io.RuntimeIOException: Runtime IO exception: error unmarshalling return; nested exception is: 
        java.io.StreamCorruptedException: unexpected block data
        at org.cyclopsgroup.jmxterm.cc.CommandCenter.doExecute(CommandCenter.java:157)
        at org.cyclopsgroup.jmxterm.cc.CommandCenter.execute(CommandCenter.java:207)
        at org.cyclopsgroup.jmxterm.boot.CliMain.execute(CliMain.java:156)
        at org.cyclopsgroup.jmxterm.boot.CliMain.main(CliMain.java:48)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.classworlds.Launcher.launchStandard(Launcher.java:353)
        at org.codehaus.classworlds.Launcher.launch(Launcher.java:264)
        at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.classworlds.uberjar.boot.Bootstrapper.bootstrap(Bootstrapper.java:209)
        at org.codehaus.classworlds.uberjar.boot.Bootstrapper.main(Bootstrapper.java:116)
Caused by: java.rmi.UnmarshalException: error unmarshalling return; nested exception is: 
        java.io.StreamCorruptedException: unexpected block data
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:173)
        at com.sun.jmx.remote.internal.PRef.invoke(Unknown Source)
        at javax.management.remote.rmi.RMIConnectionImpl_Stub.invoke(Unknown Source)
        at javax.management.remote.rmi.RMIConnector$RemoteMBeanServerConnection.invoke(RMIConnector.java:995)
        at org.cyclopsgroup.jmxterm.cmd.RunCommand.execute(RunCommand.java:137)
        at org.cyclopsgroup.jmxterm.cc.CommandCenter.doExecute(CommandCenter.java:189)
        at org.cyclopsgroup.jmxterm.cc.CommandCenter.doExecute(CommandCenter.java:153)
        ... 17 more
Caused by: java.io.StreamCorruptedException: unexpected block data
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342)
        at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
        at java.util.ArrayList.readObject(ArrayList.java:593)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
        at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
        at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
        at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
        at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
        at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:306)
        at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:155)
        ... 23 more
{noformat}
                
> add describe_ring to cli
> ------------------------
>
>                 Key: CASSANDRA-3220
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3220
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>            Reporter: Jackson Chung
>            Assignee: Jackson Chung
>            Priority: Minor
>             Fix For: 1.0.3
>
>         Attachments: patch3220.diff, patch3220.v2.diff
>
>
> Lately I have found the describe_ring feature was needed to debug/analyze issue, but the cli does not have this available.
> So just in case it is useful, please see the attached patch.
> here is the sample output:
> {noformat}
> [default@unknown] help;
> ...
> ...
> decr                    Decrements a counter column.
> describe ring           Describe the token range information.
> describe cluster        Describe the cluster configuration.
> ...
> ...
> [default@unknown] help describe ring;
> describe ring <keyspace>;
> Describes the token range settings for the named keyspace.
> Required Parameters:
> - keyspace: Name of the keyspace to describe the token range.
> Examples:
> describe ring <keyspace>; - Describes the token range settings for the named keyspace.
> [default@unknown] describe ring Keyspace3;
> TokenRange: 
>         TokenRange(start_token:9739248273232290250409572410247679660, end_token:9739248273232290250409572410247679660, endpoints:[192.168.0.125], rpc_endpoints:[192.168.0.125], endpoint_details:[EndpointDetails(host:192.168.0.125, port:9160, datacenter:168)])
> [default@unknown] describe ring fooks;
> Keyspace with name 'fooks' wasn't found, , please, authorize to one of the keyspaces first.
> [default@unknown] describe ring;
> Syntax error at position 13: mismatched input ';' expecting set null
> {noformat}

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