From d4f10cbbe1b9d13e43d80a50d204781e1c5c2da9 Mon Sep 17 00:00:00 2001
From: hyukjinkwon <gurwls223@gmail.com>
Date: Tue, 18 Apr 2017 11:05:00 +0100
Subject: [SPARK-20343][BUILD] Force Avro 1.7.7 in sbt build to resolve build
 failure in SBT Hadoop 2.6 master on Jenkins

## What changes were proposed in this pull request?

This PR proposes to force Avro's version to 1.7.7 in core to resolve the build failure as below:

```
[error] /home/jenkins/workspace/spark-master-test-sbt-hadoop-2.6/core/src/main/scala/org/apache/spark/serializer/GenericAvroSerializer.scala:123: value createDatumWriter is not a member of org.apache.avro.generic.GenericData
[error]     writerCache.getOrElseUpdate(schema, GenericData.get.createDatumWriter(schema))
[error]
```

https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-master-test-sbt-hadoop-2.6/2770/consoleFull

Note that this is a hack and should be removed in the future.

## How was this patch tested?

I only tested this actually overrides the dependency.

I tried many ways but I was unable to reproduce this in my local. Sean also tried the way I did but he was also unable to reproduce this.

Please refer the comments in https://github.com/apache/spark/pull/17477#issuecomment-294094092

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #17651 from HyukjinKwon/SPARK-20343-sbt.
---
 pom.xml | 1 +
 1 file changed, 1 insertion(+)

(limited to 'pom.xml')

diff --git a/pom.xml b/pom.xml
index c1174593c1..14370d92a9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -142,6 +142,7 @@
     <ivy.version>2.4.0</ivy.version>
     <oro.version>2.0.8</oro.version>
     <codahale.metrics.version>3.1.2</codahale.metrics.version>
+    <!-- Keep consistent with Avro vesion in SBT build for SPARK-20343 -->
     <avro.version>1.7.7</avro.version>
     <avro.mapred.classifier>hadoop2</avro.mapred.classifier>
     <jets3t.version>0.9.3</jets3t.version>
-- 
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