Attila Doroszlai created HDDS-2259:
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Summary: Container Data Scrubber computes wrong checksum
Key: HDDS-2259
URL: https://issues.apache.org/jira/browse/HDDS-2259
Project: Hadoop Distributed Data Store
Issue Type: Sub-task
Components: Ozone Datanode
Affects Versions: 0.5.0
Reporter: Attila Doroszlai
Assignee: Attila Doroszlai
Chunk checksum verification fails for (almost) any file. This is caused by
computing checksum for the entire buffer, regardless of the actual size of the
chunk.
{code:title=https://github.com/apache/hadoop/blob/55c5436f39120da0d7dabf43d7e5e6404307123b/hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/keyvalue/KeyValueContainerCheck.java#L259-L273}
byte[] buffer = new byte[cData.getBytesPerChecksum()];
...
v = fs.read(buffer);
...
bytesRead += v;
...
ByteString actual = cal.computeChecksum(buffer)
.getChecksums().get(0);
{code}
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