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https://issues.apache.org/jira/browse/CASSANDRA-8720?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17719823#comment-17719823
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Andres de la Peña commented on CASSANDRA-8720:
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Thanks, hotfix committed as 
[af07ed334ad9371c58fa743c7ce15afad7484949|https://github.com/apache/cassandra/commit/af07ed334ad9371c58fa743c7ce15afad7484949].

> Provide tools for finding wide row/partition keys
> -------------------------------------------------
>
>                 Key: CASSANDRA-8720
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8720
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Legacy/Tools
>            Reporter: J.B. Langston
>            Assignee: Andres de la Peña
>            Priority: Normal
>             Fix For: 5.0
>
>         Attachments: 8720.txt
>
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Multiple users have requested some sort of tool to help identify wide row 
> keys. They get into a situation where they know a wide row/partition has been 
> inserted and it's causing problems for them but they have no idea what the 
> row key is in order to remove it.  
> Maintaining the widest row key currently encountered and displaying it in 
> cfstats would be one possible approach.
> Another would be an offline tool (possibly an enhancement to sstablekeys) to 
> show the number of columns/bytes per key in each sstable. If a tool to 
> aggregate the information at a CF-level could be provided that would be a 
> bonus, but it shouldn't be too hard to write a script wrapper to aggregate 
> them if not.



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