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https://issues.apache.org/jira/browse/HDFS-3177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13438786#comment-13438786
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Kihwal Lee commented on HDFS-3177:
----------------------------------
{code}
-1 core tests. The patch failed these unit tests in
hadoop-hdfs-project/hadoop-hdfs:
org.apache.hadoop.hdfs.server.namenode.TestBackupNode
org.apache.hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting
{code}
None of test failures was caused by this patch
- TestBackupNode: faild due to "Port in use: 0.0.0.0:50105" in the initial
cluster startup even before trying restart
- TestDataNodeVolumeFailureReporting: The test worked okay but
org.apache.hadoop.util.ExitUtil$ExitException was thrown during the cluster
shutdown. It failed the same way before. (e.g. Aug 04,
https://builds.apache.org/job/PreCommit-HADOOP-Build/1248//testReport/)
I will investigate a bit more and file jiras if needed.
> Allow DFSClient to find out and use the CRC type being used for a file.
> -----------------------------------------------------------------------
>
> Key: HDFS-3177
> URL: https://issues.apache.org/jira/browse/HDFS-3177
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node, hdfs client
> Affects Versions: 0.23.0
> Reporter: Kihwal Lee
> Assignee: Kihwal Lee
> Fix For: 2.1.0-alpha, 3.0.0
>
> Attachments: hdfs-3177-after-hadoop-8239-8240.patch.txt,
> hdfs-3177-after-hadoop-8239.patch.txt, hdfs-3177-branch2-trunk.patch.txt,
> hdfs-3177.patch, hdfs-3177-with-hadoop-8239-8240.patch.txt,
> hdfs-3177-with-hadoop-8239-8240.patch.txt,
> hdfs-3177-with-hadoop-8239-8240.patch.txt,
> hdfs-3177-with-hadoop-8239.patch.txt
>
>
> To support HADOOP-8060, DFSClient should be able to find out the checksum
> type being used for files in hdfs.
> In my prototype, DataTransferProtocol was extended to include the checksum
> type in the blockChecksum() response. DFSClient uses it in getFileChecksum()
> to determin the checksum type. Also append() can be configured to use the
> existing checksum type instead of the configured one.
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