[jira] [Assigned] (TAJO-1872) Increase the minimum split size and add a classpath to hadoop tools

["Jihoon Son (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAJO-1872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jihoon Son reassigned TAJO-1872:
--------------------------------

    Assignee: Jihoon Son

> Increase the minimum split size and add a classpath to hadoop tools
> -------------------------------------------------------------------
>
>                 Key: TAJO-1872
>                 URL: https://issues.apache.org/jira/browse/TAJO-1872
>             Project: Tajo
>          Issue Type: Task
>          Components: conf and scripts
>            Reporter: Jihoon Son
>            Assignee: Jihoon Son
>             Fix For: 0.11.0
>
>
> The current minimum split size is 1 byte. This can cause a wrong behaviour when the underlying file system gives the wrong block size.
> For example, s3a file system sometimes returns 0, so tajo creates a split for each byte as follows.
> {noformat}
> default> \d customer
> table name: default.customer
> table uri: s3a://id:key@tajo-data-sa-east-1/tpch-1g/customer/customer.tbl
> store type: TEXT
> number of rows: unknown
> volume: 24.3 MB
> ...
> 2015-09-21 12:42:37,806 INFO org.apache.tajo.storage.FileTablespace: Total # of splits: 24346144
> ...
> {noformat}



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