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https://issues.apache.org/jira/browse/HADOOP-19604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18003999#comment-18003999
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ASF GitHub Bot commented on HADOOP-19604:
-----------------------------------------
manika137 commented on code in PR #7777:
URL: https://github.com/apache/hadoop/pull/7777#discussion_r2194294234
##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AzureDFSIngressHandler.java:
##########
@@ -178,13 +181,35 @@ protected synchronized AbfsRestOperation
remoteFlush(final long offset,
tracingContextFlush.setIngressHandler(DFS_FLUSH);
tracingContextFlush.setPosition(String.valueOf(offset));
}
+ byte[] digest = null;
+ String fullBlobMd5 = null;
+ try {
+ // Clone the MessageDigest to avoid resetting the original state
+ MessageDigest clonedMd5 = (MessageDigest)
getAbfsOutputStream().getFullBlobContentMd5().clone();
+ digest = clonedMd5.digest();
+ } catch (CloneNotSupportedException e) {
+ LOG.warn("Failed to clone MessageDigest instance", e);
+ }
+ if (digest != null && digest.length != 0) {
+ fullBlobMd5 = Base64.getEncoder().encodeToString(digest);
+ }
Review Comment:
Since this code is common in both DFS and Blob ingress handler class, maybe
we can add it as a protected helper method in the abstract class
AzureIngressHandler?
> ABFS: Fix WASB ABFS compatibility issues
> ----------------------------------------
>
> Key: HADOOP-19604
> URL: https://issues.apache.org/jira/browse/HADOOP-19604
> Project: Hadoop Common
> Issue Type: Sub-task
> Affects Versions: 3.4.1
> Reporter: Anmol Asrani
> Assignee: Anmol Asrani
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.1
>
>
> Fix WASB ABFS compatibility issues. Fix issues such as:-
> # BlockId computation to be consistent across clients for PutBlock and
> PutBlockList
> # Restrict url encoding of certain json metadata during setXAttr calls.
> # Maintain the md5 hash of whole block to validate data integrity during
> flush.
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