### What changes were proposed in this pull request?
This PR fixes SPARK-30904 by adding a null check.
### Why are the changes needed?
For HIVE_CLI_SERVICE_PROTOCOL_V5 and below, serialization fails on NULL-containing decimal columns, caused by a call to `value.toPlainString()`, where `value` might be null. This null check fixes it.
### Does this PR introduce any user-facing change?
No
### How was this patch tested?
A test was added for serialization of NULL decimals for all HIVE_CLI_SERVICE_PROTOCOL versions.
Closes#27654 from CJStuart/SPARK-30904.
Authored-by: Christian Stuart <christian.stuart@databricks.com>
Signed-off-by: Yuming Wang <wgyumg@gmail.com>
### What changes were proposed in this pull request?
Pick up the HTTP fix from https://issues.apache.org/jira/browse/HIVE-22708
### Why are the changes needed?
This is a small but important fix to digest handling we should pick up from Hive.
### Does this PR introduce any user-facing change?
No.
### How was this patch tested?
Existing tests
Closes#27273 from srowen/Hive22708.
Authored-by: Sean Owen <srowen@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
Avoid hive log initialisation as https://github.com/apache/hive/blob/rel/release-2.3.5/common/src/java/org/apache/hadoop/hive/common/LogUtils.java introduces dependency over `org.apache.logging.log4j.core.impl.Log4jContextFactory` which is missing in our spark installer classpath directly. I believe the `LogUtils.initHiveLog4j()` code is here as the HiveServer2 class is copied from Hive.
To make `start-thriftserver.sh --help` command success.
Currently, start-thriftserver.sh --help throws
```
...
Thrift server options:
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/logging/log4j/spi/LoggerContextFactory
at org.apache.hive.service.server.HiveServer2.main(HiveServer2.java:167)
at org.apache.spark.sql.hive.thriftserver.HiveThriftServer2$.main(HiveThriftServer2.scala:82)
at org.apache.spark.sql.hive.thriftserver.HiveThriftServer2.main(HiveThriftServer2.scala)
Caused by: java.lang.ClassNotFoundException: org.apache.logging.log4j.spi.LoggerContextFactory
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 3 more
```
No
Checked Manually
Closes#27042 from ajithme/thrifthelp.
Authored-by: Ajith <ajith2489@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
### What changes were proposed in this pull request?
This is a follow-up according to liancheng 's advice.
- https://github.com/apache/spark/pull/26619#discussion_r349326090
### Why are the changes needed?
Previously, we chose the full version to be carefully. As of today, it seems that `Apache Hive 2.3` branch seems to become stable.
### Does this PR introduce any user-facing change?
No.
### How was this patch tested?
Pass the compile combination on GitHub Action.
1. hadoop-2.7/hive-1.2/JDK8
2. hadoop-2.7/hive-2.3/JDK8
3. hadoop-3.2/hive-2.3/JDK8
4. hadoop-3.2/hive-2.3/JDK11
Also, pass the Jenkins with `hadoop-2.7` and `hadoop-3.2` for (1) and (4).
(2) and (3) is not ready in Jenkins.
Closes#26645 from dongjoon-hyun/SPARK-RENAME-HIVE-DIRECTORY.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
