GitHub user parthchandra opened a pull request:
https://github.com/apache/drill/pull/723
Improve Parquet Scan pipelining.
Add a configurable AsyncPageReader Queue.
Enforce total size of parquet row group.
Do not initialize BufferedDirectBufInputStream buffer in init. Wait for
first read.
Change default size of BufferedDirectBufInputStream.
Do not invoke getOptions too many times in Parquet reader.
Add metrics for processing time, and decoding time for varlen and
fixedlen columns.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/parthchandra/drill DRILL-5207
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/723.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #723
----
commit 55e004a452039f553731ba1b6a3e4bc8baadc2a9
Author: Parth Chandra <[email protected]>
Date: 2016-12-14T20:08:20Z
Improve Parquet Scan pipelining.
Add a configurable AsyncPageReader Queue.
Enforce total size of parquet row group.
Do not initialize BufferedDirectBufInputStream buffer in init. Wait for
first read.
Change default size of BufferedDirectBufInputStream.
Do not invoke getOptions too many times in Parquet reader.
Add metrics for processing time, and decoding time for varlen and
fixedlen columns.
----
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
