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https://issues.apache.org/jira/browse/PARQUET-2171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17787359#comment-17787359
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ASF GitHub Bot commented on PARQUET-2171:
-----------------------------------------
steveloughran commented on code in PR #1139:
URL: https://github.com/apache/parquet-mr/pull/1139#discussion_r1397762449
##########
parquet-hadoop/src/test/java/org/apache/parquet/hadoop/TestParquetFileWriter.java:
##########
@@ -89,10 +89,13 @@
import org.apache.parquet.hadoop.example.GroupWriteSupport;
import org.junit.rules.TemporaryFolder;
+import org.junit.runner.RunWith;
+import org.junit.runners.Parameterized;
import org.mockito.Mockito;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
+@RunWith(Parameterized.class)
public class TestParquetFileWriter {
Review Comment:
started this, but it doesn't work. because filesystems are cached on path;
once a writer has retrieved the fs instance for a path, the reader gets it back
too. sorry
> Implement vectored IO in parquet file format
> --------------------------------------------
>
> Key: PARQUET-2171
> URL: https://issues.apache.org/jira/browse/PARQUET-2171
> Project: Parquet
> Issue Type: New Feature
> Components: parquet-mr
> Reporter: Mukund Thakur
> Priority: Major
>
> We recently added a new feature called vectored IO in Hadoop for improving
> read performance for seek heavy readers. Spark Jobs and others which uses
> parquet will greatly benefit from this api. Details can be found here
> [https://github.com/apache/hadoop/commit/e1842b2a749d79cbdc15c524515b9eda64c339d5]
> https://issues.apache.org/jira/browse/HADOOP-18103
> https://issues.apache.org/jira/browse/HADOOP-11867
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