GitHub user wangyum opened a pull request:
https://github.com/apache/spark/pull/20944
[SPARK-23831][SQL] Add org.apache.derby to IsolatedClientLoader
## What changes were proposed in this pull request?
Add `org.apache.derby` to `IsolatedClientLoader`, otherwise it may throw an
exception:
```
[info] Cause: java.sql.SQLException: Failed to start database
'metastore_db' with class loader
org.apache.spark.sql.hive.client.IsolatedClientLoader$$anon$1@2439ab23, see the
next exception for details.
[info] at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
[info] at
org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
[info] at org.apache.derby.impl.jdbc.Util.seeNextException(Unknown Source)
[info] at org.apache.derby.impl.jdbc.EmbedConnection.bootDatabase(Unknown
Source)
[info] at org.apache.derby.impl.jdbc.EmbedConnection.<init>(Unknown Source)
[info] at org.apache.derby.jdbc.InternalDriver$1.run(Unknown Source)
```
How to reproduce:
```bash
sed 's/HiveExternalCatalogSuite/HiveExternalCatalog2Suite/g'
sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveExternalCatalogSuite.scala
>
sql/hive/src/test/scala/org/apache/spark/sql/hive/HiveExternalCatalog2Suite.scala
build/sbt -Phive "hive/test-only *.HiveExternalCatalogSuite
*.HiveExternalCatalog2Suite"
```
## How was this patch tested?
manual tests
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/wangyum/spark SPARK-23831
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20944.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 #20944
----
commit 7d5cc71e4753f26fed4563a0eef27aa9de173d57
Author: Yuming Wang <yumwang@...>
Date: 2018-03-30T10:41:42Z
Add org.apache.derby to IsolatedClientLoader
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