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From "Dave Brosius (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7597) Remove static initializer in DatabaseDescriptor
Date Fri, 25 Jul 2014 00:05:38 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14073873#comment-14073873
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Dave Brosius commented on CASSANDRA-7597:
-----------------------------------------

'theoretically' the tool could install a SecurityManager, and catch SecurityException in this
case.

> Remove static initializer in DatabaseDescriptor
> -----------------------------------------------
>
>                 Key: CASSANDRA-7597
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7597
>             Project: Cassandra
>          Issue Type: Improvement
>         Environment: Cassandra 2.0.9 (earlier version should be affected as well)
>            Reporter: Pavel Sakun
>            Assignee: Robert Stupp
>         Attachments: 7597.txt
>
>
> As discussed below, it's difficult to properly react on invalid configuration values
in a client tool that uses cassandra code (here: an sstable loader).
> Reason is that the static initializer in DatabaseDescriptor calls System.exit in case
of configuration failures.
> Recommend to implement some "loadAndApplyConfig" method on DatabaseDescriptor and remove
the static initializer and let the calling code react accordingly (print error, exit VM).
> All direct and indirect uses of DatabaseDescriptor must be catched to solve this ticket
- so this is not a 2.1 ticket.
> --------------------------
> Old Description:
> We're using SSTableSimpleUnsortedWriter API to generate SSTable to be loaded into cassandra.
In case of any issue with config DatabaseDescriptor calls System.exit() which is apparently
not the thing you expect while using API.
> Test case is simple:
> System.setProperty( "cassandra.config", "" );
> new YamlConfigurationLoader().loadConfig();
> Thread.sleep( 5000 );
> System.out.println("We're still alive"); // this will never be called



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