[jira] [Created] (TAJO-1266) Too many logs when writing a parquet relation

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

Jihoon Son created TAJO-1266:
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             Summary: Too many logs when writing a parquet relation
                 Key: TAJO-1266
                 URL: https://issues.apache.org/jira/browse/TAJO-1266
             Project: Tajo
          Issue Type: Improvement
            Reporter: Jihoon Son


See the title.
The parquet writer emits too many logs by default.
Here is a part of the whole log.
{noformat}
Dec 22, 2014 3:28:59 PM parquet.Log info
INFO: written 337B for [p_retailprice] DOUBLE: 737,002 values, 79B raw, 79B comp, 6 pages, encodings: [PLAIN_DICTIONARY, BIT_PACKED, RLE], dic { 2 entries, 16B raw, 2B comp}
Dec 22, 2014 3:28:59 PM parquet.Log info
INFO: written 790B for [p_comment] BINARY: 737,002 values, 143B raw, 143B comp, 11 pages, encodings: [PLAIN_DICTIONARY, BIT_PACKED, RLE], dic { 2 entries, 34B raw, 2B comp}
Dec 22, 2014 3:28:59 PM parquet.Log info
INFO: written 337B for [s_suppkey] INT64: 737,002 values, 79B raw, 79B comp, 6 pages, encodings: [PLAIN_DICTIONARY, BIT_PACKED, RLE], dic { 2 entries, 16B raw, 2B comp}
{noformat}

As you can see, a new log is emitted even when only 337B is additionally written.
This will significantly degrade the write performance, so we need to turn off the parquet log by default.



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