[hadoop] branch branch-3.1 updated: HDFS-14175. EC: Native XOR decoder should reset the output buffer before using it. Contributed by Ayush Saxena.

[we...@apache.org]

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weichiu pushed a commit to branch branch-3.1
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The following commit(s) were added to refs/heads/branch-3.1 by this push:
     new 5436df0  HDFS-14175. EC: Native XOR decoder should reset the output buffer before using it. Contributed by Ayush Saxena.
5436df0 is described below

commit 5436df0c9490d59df28fe2879c55909c07e672d9
Author: Surendra Singh Lilhore <su...@apache.org>
AuthorDate: Fri Jan 18 13:55:12 2019 +0530

    HDFS-14175. EC: Native XOR decoder should reset the output buffer before using it. Contributed by Ayush Saxena.
    
    (cherry picked from commit dacc1a759e3ba3eca000cbacc6145b231253b174)
---
 .../main/native/src/org/apache/hadoop/io/erasurecode/jni_xor_decoder.c  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_xor_decoder.c b/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_xor_decoder.c
index d2de0c6..6832aa8 100644
--- a/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_xor_decoder.c
+++ b/hadoop-common-project/hadoop-common/src/main/native/src/org/apache/hadoop/io/erasurecode/jni_xor_decoder.c
@@ -66,6 +66,8 @@ Java_org_apache_hadoop_io_erasurecode_rawcoder_NativeXORRawDecoder_decodeImpl(
       numDataUnits + numParityUnits);
   getOutputs(env, outputs, outputOffsets, xorDecoder->outputs, numParityUnits);
 
+  memset(xorDecoder->outputs[0], 0, chunkSize);
+
   for (i = 0; i < numDataUnits + numParityUnits; i++) {
     if (xorDecoder->inputs[i] == NULL) {
       continue;


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