2460f03ffe
## What changes were proposed in this pull request? The java.net.URL class has a globally synchronized Hashtable, which limits the throughput of any single executor doing lots of calls to parse_url(). Tests have shown that a 36-core machine can only get to 10% CPU use because the threads are locked most of the time. This patch switches to java.net.URI which has less features than java.net.URL but focuses on URI parsing, which is enough for parse_url(). New tests were added to make sure a few common edge cases didn't change behaviour. https://issues.apache.org/jira/browse/SPARK-16826 ## How was this patch tested? I've kept the old URL code commented for now, so that people can verify that the new unit tests do pass with java.net.URL. Thanks to srowen for the help! Author: Sylvain Zimmer <sylvain@sylvainzimmer.com> Closes #14488 from sylvinus/master. |
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| .. | ||
| avro | ||
| gen-java/org/apache/spark/sql/execution/datasources/parquet/test/avro | ||
| java/test/org/apache/spark/sql | ||
| resources | ||
| scala/org/apache/spark/sql | ||
| scripts | ||
| thrift | ||
| README.md | ||
Notes for Parquet compatibility tests
The following directories and files are used for Parquet compatibility tests:
.
├── README.md # This file
├── avro
│ ├── *.avdl # Testing Avro IDL(s)
│ └── *.avpr # !! NO TOUCH !! Protocol files generated from Avro IDL(s)
├── gen-java # !! NO TOUCH !! Generated Java code
├── scripts
│ ├── gen-avro.sh # Script used to generate Java code for Avro
│ └── gen-thrift.sh # Script used to generate Java code for Thrift
└── thrift
└── *.thrift # Testing Thrift schema(s)
To avoid code generation during build time, Java code generated from testing Thrift schema and Avro IDL are also checked in.
When updating the testing Thrift schema and Avro IDL, please run gen-avro.sh and gen-thrift.sh accordingly to update generated Java code.
Prerequisites
Please ensure avro-tools and thrift are installed. You may install these two on Mac OS X via:
$ brew install thrift avro-tools