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https://issues.apache.org/jira/browse/IMPALA-14545?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe McDonnell resolved IMPALA-14545.
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Fix Version/s: Impala 5.0.0
Resolution: Fixed
> S3PlannerTest.testDataSourceTables fails with "Failed to copy JDBC driver"
> --------------------------------------------------------------------------
>
> Key: IMPALA-14545
> URL: https://issues.apache.org/jira/browse/IMPALA-14545
> Project: IMPALA
> Issue Type: Bug
> Components: Infrastructure, Test
> Affects Versions: Impala 5.0.0
> Reporter: Joe McDonnell
> Assignee: Pranav Yogi Lodha
> Priority: Blocker
> Fix For: Impala 5.0.0
>
>
> S3PlannerTest.testDataSourceTables is failing on S3 jobs with:
> {noformat}
> Query:
> select * from functional.jdbc_decimal_tbl where d3 > 123.456 and d5 < 10.0
> Error Stack:
> org.apache.impala.common.InternalException: Data source
> DataSource{name=impalajdbcdatasource, location=,
> className=org.apache.impala.extdatasource.jdbc.JdbcDataSource, apiVersion=V1}
> returned an error from prepare(): Failed to retrieve total number of records:
> Failed to copy JDBC driver from
> 'hdfs://localhost:20500/test-warehouse/data-sources/jdbc-drivers/postgresql-jdbc.jar'
> to local filesystem.{noformat}
> This seems to have started when IMPALA-13661 merged, but it is unclear why it
> started failing then.
> [https://github.com/apache/impala/commit/a77fec6391eaf5db7c52000c7446cc8582c770ac]
> I think the main problem for this is in the paths used in
> [https://github.com/apache/impala/blob/master/testdata/bin/create-ext-data-source-table.sql]
> . There are two main problems:
> 1. Some of the paths are absolute (e.g.
> [https://github.com/apache/impala/blob/master/testdata/bin/create-ext-data-source-table.sql#L90]
> )
> 2. The paths make no allowance for a FILESYSTEM_PREFIX or WAREHOUSE_PREFIX.
> Fixing the first one should fix S3. Since we don't run frontend tests on
> other non-HDFS filesystems, the second may not matter for this test.
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