Grokbase Groups Hive user August 2011
FAQ
Hi,

can indexes work on gzipped files?

The index gets build without errors using
ALTER INDEX syslog_index ON syslog PARTITION(dt='2011-08-03') REBUILD;

but when querying, no results are returned (and no errors reported). The
query should be correct because with plaintext files it works.


Best regards and thanks
Martin Konicek

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  • Yongqiang he at Aug 3, 2011 at 5:39 pm
    unfortunately it does not, because can not split .gz file.

    2011/8/3 Martin Konicek <martin.konicek@gmail.com>:
    Hi,

    can indexes work on gzipped files?

    The index gets build without errors using
    ALTER INDEX syslog_index ON syslog PARTITION(dt='2011-08-03') REBUILD;

    but when querying, no results are returned (and no errors reported). The
    query should be correct because with plaintext files it works.


    Best regards and thanks
    Martin Konicek
  • Martin Konicek at Aug 4, 2011 at 3:23 am
    Thanks! Can Hive index LZO compressed files then? LZO compression isn't
    part of Cloudera's release, right?
    On 03/08/2011 19:38, yongqiang he wrote:
    unfortunately it does not, because can not split .gz file.

    2011/8/3 Martin Konicek<martin.konicek@gmail.com>:
    Hi,

    can indexes work on gzipped files?

    The index gets build without errors using
    ALTER INDEX syslog_index ON syslog PARTITION(dt='2011-08-03') REBUILD;

    but when querying, no results are returned (and no errors reported). The
    query should be correct because with plaintext files it works.


    Best regards and thanks
    Martin Konicek

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categorieshive, hadoop
postedAug 3, '11 at 5:11p
activeAug 4, '11 at 3:23a
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Martin Konicek: 2 posts Yongqiang he: 1 post

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