runitao commented on a change in pull request #2585:
URL: https://github.com/apache/hadoop/pull/2585#discussion_r595018555
##########
File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/erasurecode/StripedBlockChecksumReconstructor.java
##########
@@ -192,7 +193,16 @@ private void reconstructTargets(int toReconstructLen)
throws IOException {
for (int i = 0; i < targetIndices.length; i++) {
tarIndices[i] = targetIndices[i];
}
- getDecoder().decode(inputs, tarIndices, outputs);
+
+ if (isValidationEnabled()) {
+ markBuffers(inputs);
+ getDecoder().decode(inputs, tarIndices, outputs);
+ resetBuffers(inputs);
+
+ getValidator().validate(inputs, tarIndices, outputs);
Review comment:
Can we check the result and add a metric for the failed validation?
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