Impala Public Jenkins has submitted this change and it was merged.

Change subject: IMPALA-5184: build fe against both Hive 1 & 2 APIs
......................................................................


IMPALA-5184: build fe against both Hive 1 & 2 APIs

This adds a compatibility shim layer with Hive 1 and Hive 2
implementations. The version-specific code lives in
fe/src/compat-hive-$IMPALA_HIVE_MAJOR_VERSION and
common/thrift/hive-$IMPALA_HIVE_MAJOR_VERSION-api/

The shim adds wrapper methods to handle differing method signatures
and and config variables that changed slightly.

Some thrift classes were also moved from the 'cli' to 'rpc' package.
We work around these by implementing subclasses with the same name
in a different package for compatibility or by implementing shim
methods that operate on the classes. We also need to change the
package in the TCLIService.thrift, which is done with a
search-and-replace.

Also avoid the sticky config variable problem with some of the source
paths by requiring an _OVERRIDE suffix on the variable to override it
from the environment.

Testing:
Made sure that I could build Impala on master as normal, and also
with the following config overrides in bin/impala-config-local.sh:

  export IMPALA_HADOOP_VERSION=3.0.0-alpha1-cdh6.x-SNAPSHOT
  export IMPALA_HBASE_VERSION=2.0.0-cdh6.x-SNAPSHOT
  export IMPALA_HIVE_VERSION=2.1.0-cdh6.x-SNAPSHOT
  export IMPALA_SENTRY_VERSION=1.5.1-cdh6.x-SNAPSHOT
  export IMPALA_PARQUET_VERSION=1.5.0-cdh6.x-SNAPSHOT

I manually assembled the dependencies by copying the following files
from the Hive 2 source and from a Hadoop 3 build:
$CDH_COMPONENTS_HOME/hive-2.1.0-cdh6.x-SNAPSHOT/src/metastore/if/hive_metastore.thrift
$CDH_COMPONENTS_HOME/hadoop-3.0.0-alpha1-cdh6.x-SNAPSHOT/lib/native/*
$CDH_COMPONENTS_HOME/hadoop-3.0.0-alpha1-cdh6.x-SNAPSHOT/include/hdfs.h

Change-Id: Ifbc265281c04fe3136bc3c920dbac966742ce09a
Reviewed-on: http://gerrit.cloudera.org:8080/5538
Reviewed-by: Tim Armstrong <tarmstr...@cloudera.com>
Tested-by: Impala Public Jenkins
---
M bin/impala-config.sh
M common/thrift/.gitignore
M common/thrift/CMakeLists.txt
R common/thrift/hive-1-api/TCLIService.thrift
M fe/pom.xml
A 
fe/src/compat-hive-1/java/org/apache/hive/service/rpc/thrift/TGetCatalogsReq.java
A 
fe/src/compat-hive-1/java/org/apache/hive/service/rpc/thrift/TGetColumnsReq.java
A 
fe/src/compat-hive-1/java/org/apache/hive/service/rpc/thrift/TGetFunctionsReq.java
A fe/src/compat-hive-1/java/org/apache/hive/service/rpc/thrift/TGetInfoReq.java
A 
fe/src/compat-hive-1/java/org/apache/hive/service/rpc/thrift/TGetSchemasReq.java
A 
fe/src/compat-hive-1/java/org/apache/hive/service/rpc/thrift/TGetTablesReq.java
A fe/src/compat-hive-1/java/org/apache/impala/compat/MetastoreShim.java
A fe/src/compat-hive-2/java/org/apache/impala/compat/MetastoreShim.java
M fe/src/main/java/org/apache/impala/analysis/ColumnDef.java
M fe/src/main/java/org/apache/impala/analysis/CreateDataSrcStmt.java
M fe/src/main/java/org/apache/impala/analysis/CreateDbStmt.java
M fe/src/main/java/org/apache/impala/analysis/DropDataSrcStmt.java
M fe/src/main/java/org/apache/impala/analysis/Subquery.java
M fe/src/main/java/org/apache/impala/analysis/TableName.java
M fe/src/main/java/org/apache/impala/analysis/TypeDef.java
M fe/src/main/java/org/apache/impala/catalog/HdfsPartition.java
M fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
M fe/src/main/java/org/apache/impala/service/Frontend.java
M fe/src/main/java/org/apache/impala/util/MetaStoreUtil.java
M fe/src/test/java/org/apache/impala/analysis/AuthorizationTest.java
M fe/src/test/java/org/apache/impala/analysis/ParserTest.java
M fe/src/test/java/org/apache/impala/service/FrontendTest.java
27 files changed, 492 insertions(+), 85 deletions(-)

Approvals:
  Impala Public Jenkins: Verified
  Tim Armstrong: Looks good to me, approved



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Gerrit-MessageType: merged
Gerrit-Change-Id: Ifbc265281c04fe3136bc3c920dbac966742ce09a
Gerrit-PatchSet: 12
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com>
Gerrit-Reviewer: Bharath Vissapragada <bhara...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>

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