GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/15581
[SPARK-18044][STREAMING] FileStreamSource should not infer partitions in
every batch
## What changes were proposed in this pull request?
In `FileStreamSource.getBatch`, we will create a `DataSource` with
specified schema, to avoid inferring the schema again and again. However, we
don't pass the partition columns, and will infer the partition again and again.
This PR fixes it by keeping the partition columns in `FileStreamSource`,
like schema.
## How was this patch tested?
N/A
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark stream
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/15581.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 #15581
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commit ad7ef8137be04352730d2df7339cb5f00c3190c3
Author: Wenchen Fan <wenc...@databricks.com>
Date: 2016-10-21T08:29:18Z
FileStreamSource should not infer partitions in every batch
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