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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (CASSANDRA-4921) improve cqlsh COPY FROM performance
Date Sun, 18 Nov 2012 22:00:58 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4921?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13499921#comment-13499921
] 

Aleksey Yeschenko edited comment on CASSANDRA-4921 at 11/18/12 10:00 PM:
-------------------------------------------------------------------------

I remember now. It's "CQL query must be bytes, not unicode" error when attempting COPY TO
and COPY FROM in CQL3 mode.
Nothing else seems to be affected (DESCRIBE * commands work fine and all field types are properly
deserialized/formatted in both CQL2 and CQL3 mode).
                
      was (Author: iamaleksey):
    I remember now. It's "CQL query must be bytes, not unicode" error when attempting COPY
TO and COPY FROM in CQL3 mode.
Nothing else seems to be affected (DESCRIBE * command work fine and all field types are properly
deserialized/formatted in both CQL2 and CQL3 mode).
                  
> improve cqlsh COPY FROM performance
> -----------------------------------
>
>                 Key: CASSANDRA-4921
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4921
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Tools
>    Affects Versions: 1.1.2
>            Reporter: Jonathan Ellis
>            Assignee: Aleksey Yeschenko
>            Priority: Minor
>             Fix For: 1.1.7
>
>
> Profiling shows that prepare_inline takes the vast majority of cqlsh COPY FROM time,
particularly on csv rows with many columns.

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