cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Piotr Kołaczkowski (JIRA) <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4803) CFRR wide row iterators improvements
Date Tue, 20 Nov 2012 15:48:59 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13501242#comment-13501242
] 

Piotr Kołaczkowski commented on CASSANDRA-4803:
-----------------------------------------------

0007 - this is for rolling upgrade. When you upgrade one node and the other nodes don't have
describe_splits_ex yet, starting a hadoop job on a newly upgraded node fails.

As for 0004 / 0006 fixes - I agree. Let's move them to a separate ticket. 
                
> 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: 1.1.7
>
>         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). 

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message