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https://issues.apache.org/jira/browse/CASSANDRA-8301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14327944#comment-14327944
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Carl Yeksigian commented on CASSANDRA-8301:
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The args.length check should be for <2 since we want keyspace and cf. Also,
should check to make sure leveling at least one sstable, otherwise levels will
be Int.MIN_VALUE.
Otherwise, +1.
> Create a tool that given a bunch of sstables creates a "decent" sstable
> leveling
> --------------------------------------------------------------------------------
>
> Key: CASSANDRA-8301
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8301
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Marcus Eriksson
> Assignee: Marcus Eriksson
> Fix For: 2.0.13
>
>
> In old versions of cassandra (i.e. not trunk/3.0), when bootstrapping a new
> node, you will end up with a ton of files in L0 and it might be extremely
> painful to get LCS to compact into a new leveling
> We could probably exploit the fact that we have many non-overlapping sstables
> in L0, and offline-bump those sstables into higher levels. It does not need
> to be perfect, just get the majority of the data into L1+ without creating
> overlaps.
> So, suggestion is to create an offline tool that looks at the range each
> sstable covers and tries to bump it as high as possible in the leveling.
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