[jira] [Assigned] (CASSANDRA-11537) Give clear error when certain nodetool commands are issued before server is ready

["Edward Capriolo (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-11537?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward Capriolo reassigned CASSANDRA-11537:
-------------------------------------------

    Assignee:     (was: Edward Capriolo)

> Give clear error when certain nodetool commands are issued before server is ready
> ---------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-11537
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11537
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Edward Capriolo
>            Priority: Minor
>              Labels: lhf
>
> As an ops person upgrading and servicing Cassandra servers, I require a more clear message when I issue a nodetool command that the server is not ready for it so that I am not confused.
> Technical description:
> If you deploy a new binary, restart, and issue nodetool scrub/compact/updatess etc you get unfriendly assertion. An exception would be easier to understand. Also if a user has turned assertions off it is unclear what might happen. 
> {noformat}
> EC1: Throw exception to make it clear server is still in start up process. 
> :~# nodetool upgradesstables
> error: null
> -- StackTrace --
> java.lang.AssertionError
>     at org.apache.cassandra.db.Keyspace.open(Keyspace.java:97)
>     at org.apache.cassandra.service.StorageService.getValidKeyspace(StorageService.java:2573)
>     at org.apache.cassandra.service.StorageService.getValidColumnFamilies(StorageService.java:2661)
>     at org.apache.cassandra.service.StorageService.upgradeSSTables(StorageService.java:2421)
> {noformat}
> EC1: 
> Patch against 2.1 (branch)
> https://github.com/apache/cassandra/compare/trunk...edwardcapriolo:exception-on-startup?expand=1



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