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From Piotr Kołaczkowski (JIRA) <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-4803) CFRR wide row iterators improvements
Date Mon, 12 Nov 2012 09:42:12 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Piotr Kołaczkowski updated CASSANDRA-4803:
------------------------------------------

    Attachment: 0007-Fallback-to-describe_splits-in-case-describe_splits_.patch
                0006-Code-cleanup-refactoring-in-CFRR.-Fixed-bug-with-mis.patch
                0004-Better-token-range-wrap-around-handling-in-CFIF-CFRR.patch

Rebased patches for recent 1.1. Some patches have been already applied, so removed them from
the list.
                
> CFRR wide row iterators improvements
> ------------------------------------
>
>                 Key: CASSANDRA-4803
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4803
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Hadoop
>    Affects Versions: 1.1.0
>            Reporter: Piotr Kołaczkowski
>            Assignee: Piotr Kołaczkowski
>             Fix For: 1.2.0 rc1
>
>         Attachments: 0004-Better-token-range-wrap-around-handling-in-CFIF-CFRR.patch,
0006-Code-cleanup-refactoring-in-CFRR.-Fixed-bug-with-mis.patch, 0007-Fallback-to-describe_splits-in-case-describe_splits_.patch
>
>
> {code}
>  public float getProgress()
>     {
>         // TODO this is totally broken for wide rows
>         // the progress is likely to be reported slightly off the actual but close enough
>         float progress = ((float) iter.rowsRead() / totalRowCount);
>         return progress > 1.0F ? 1.0F : progress;
>     }
> {code}
> The problem is iter.rowsRead() does not return the number of rows read from the wide
row iterator, but returns number of *columns* (every row is counted multiple times). 

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