[ 
https://issues.apache.org/jira/browse/CASSANDRA-7370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14039151#comment-14039151
 ] 

Robert Stupp commented on CASSANDRA-7370:
-----------------------------------------

I want to give this a try.

The table schema would be generated by using Java reflection to get the column 
names and types.
PK would be 'node' as partition key and a startup timestamp column (order desc) 
- so the table gets some "configuration change history".
One row would be inserted for each node startup.
Would this be a post-2.1 or trunk (3.0) task?

> Create a new system table "node_config" to load cassandra.yaml config data.
> ---------------------------------------------------------------------------
>
>                 Key: CASSANDRA-7370
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7370
>             Project: Cassandra
>          Issue Type: Wish
>          Components: Config
>            Reporter: Hayato Shimizu
>            Priority: Minor
>              Labels: ponies
>
> Currently the node configuration information specified in cassandra.yaml can 
> only be viewed via JMX or by looking at the file on individual machines.
> As an administrator, it would be extremely useful to be able to execute 
> queries like the following example;
> select concurrent_reads from system.node_config;
> which will list all the concurrent_reads value from all of the nodes in a 
> cluster.
> This will require a new table in the system keyspace and the data to be 
> loaded (if required) during the bootstrap, and updated when MBeans attribute 
> value updates are performed. The data from other nodes in the cluster is also 
> required in the table.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Reply via email to