column chunk page write store log message displays incorrect information
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- Java
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Description
It is printing the size of the dictionary (in terms of the number of keys) twice and calling the second time the 'compressed byte count'. An accurate account of that number would be very helpful for accounting for disk space usage. The actual 'compressed byte count' is indeed calculated at a point near there so I am guessing this is a simple mistake.
see:
https://github.com/apache/incubator-parquet-mr/blob/master/parquet-hadoop/src/main/java/parquet/hadoop/ColumnChunkPageWriteStore.java#L152
**Reporter**: [Ian Barfield](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=ianbarfield)
**Note**: *This issue was originally created as [PARQUET-71](https://issues.apache.org/jira/browse/PARQUET-71). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*
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Research direction
Open parquet-hadoop/src/main/java/parquet/hadoop/ColumnChunkPageWriteStore.java at the referenced line and inspect the nearby log message and compressed byte count calculation. Done means the store log reports the actual compressed byte count instead of printing the dictionary size twice.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- data-engineering
- Issue type
- Bug
- Difficulty
- 1/5
- Estimated time
- Under an hour
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 58/100