GitHub user vinodkc opened a pull request:
https://github.com/apache/spark/pull/19795
[SPARK-17920][SPARK-19580][SPARK-19878][SQL] Backport PR 19779 to
branch-2.2 - Support writing to Hive table which uses Avro schema url
'avro.schema.url'
## What changes were proposed in this pull request?
> Backport https://github.com/apache/spark/pull/19779 to branch-2.2
SPARK-19580 Support for avro.schema.url while writing to hive table
SPARK-19878 Add hive configuration when initialize hive serde in
InsertIntoHiveTable.scala
SPARK-17920 HiveWriterContainer passes null configuration to
serde.initialize, causing NullPointerException in AvroSerde when using
avro.schema.url
Support writing to Hive table which uses Avro schema url 'avro.schema.url'
For ex:
create external table avro_in (a string) stored as avro location
'/avro-in/' tblproperties ('avro.schema.url'='/avro-schema/avro.avsc');
create external table avro_out (a string) stored as avro location
'/avro-out/' tblproperties ('avro.schema.url'='/avro-schema/avro.avsc');
insert overwrite table avro_out select * from avro_in; // fails with
java.lang.NullPointerException
WARN AvroSerDe: Encountered exception determining schema. Returning signal
schema to indicate problem
java.lang.NullPointerException
at org.apache.hadoop.fs.FileSystem.getDefaultUri(FileSystem.java:182)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:174)
## Changes proposed in this fix
Currently 'null' value is passed to serializer, which causes NPE during
insert operation, instead pass Hadoop configuration object
## How was this patch tested?
Added new test case in VersionsSuite
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/vinodkc/spark br_Fix_SPARK-17920_branch-2.2
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19795.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 #19795
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commit 63e40e866e8ad3307b91ea430c29938a0050e6f7
Author: vinodkc <[email protected]>
Date: 2017-11-22T12:47:47Z
pass hadoop Configuration to serializer
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