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Posted to dev@parquet.apache.org by "Mars (Jira)" <ji...@apache.org> on 2023/04/04 05:53:00 UTC
[jira] [Updated] (PARQUET-2260) Bloom filter bytes size shouldn't be larger than maxBytes size in the configuration
[ https://issues.apache.org/jira/browse/PARQUET-2260?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mars updated PARQUET-2260:
--------------------------
Description:
Before this PR: If {{parquet.bloom.filter.max.bytes}} configuration is not a power of 2 value, the size of the bloom filter generated will exceed this value. For example, if set {{parquet.bloom.filter.max.bytes}} as 1024 * 1024+1= 1048577 , the bytes size of bloom filter generated will be 1024 * 1024 * 2 = 2097152. This does not match the definition of the parameter
After this PR: If {{parquet.bloom.filter.max.bytes}} configuration is not a power of 2, and the size of {{parquet.bloom.filter.max.bytes}} is the final bloom filter bytes size.
was:
Before this PR: If {{parquet.bloom.filter.max.bytes}} configuration is not a power of 2 value, the size of the bloom filter generated will exceed this value. For example, now if set {{parquet.bloom.filter.max.bytes}} as 1024 * 1024+1= 1048577 , the bytes size of bloom filter generated will be 1024 * 1024 * 2 = 2097152. This does not match the definition of the parameter
After this PR: set this value to the largest power of two less than {{parquet.bloom.filter.max.bytes}} and It should be 1024 * 1024
> Bloom filter bytes size shouldn't be larger than maxBytes size in the configuration
> ------------------------------------------------------------------------------------
>
> Key: PARQUET-2260
> URL: https://issues.apache.org/jira/browse/PARQUET-2260
> Project: Parquet
> Issue Type: Bug
> Reporter: Mars
> Assignee: Mars
> Priority: Major
>
> Before this PR: If {{parquet.bloom.filter.max.bytes}} configuration is not a power of 2 value, the size of the bloom filter generated will exceed this value. For example, if set {{parquet.bloom.filter.max.bytes}} as 1024 * 1024+1= 1048577 , the bytes size of bloom filter generated will be 1024 * 1024 * 2 = 2097152. This does not match the definition of the parameter
> After this PR: If {{parquet.bloom.filter.max.bytes}} configuration is not a power of 2, and the size of {{parquet.bloom.filter.max.bytes}} is the final bloom filter bytes size.
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