[ https://issues.apache.org/jira/browse/HDFS-13764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yuexin Zhang updated HDFS-13764: -------------------------------- Attachment: HDFS-13764_DOC1.patch > [DOC] update flag is not necessary to avoid verifying checksums > --------------------------------------------------------------- > > Key: HDFS-13764 > URL: https://issues.apache.org/jira/browse/HDFS-13764 > Project: Hadoop HDFS > Issue Type: Bug > Components: documentation > Affects Versions: 2.7.0, 2.7.3 > Reporter: Yuexin Zhang > Priority: Major > Attachments: HDFS-13764_DOC1.patch > > > We mentioned to use "-update" option to avoid checksum in the following doc: > [https://hadoop.apache.org/docs/r2.7.3/hadoop-project-dist/hadoop-hdfs/TransparentEncryption.html#Copying_between_encrypted_and_unencrypted_locations] > {code:java} > Copying between encrypted and unencrypted locations > By default, distcp compares checksums provided by the filesystem to verify > that the data was successfully copied to the destination. When copying > between an unencrypted and encrypted location, the filesystem checksums will > not match since the underlying block data is different. In this case, specify > the -skipcrccheck and -update distcp flags to avoid verifying checksums. > {code} > > But actually, "-update" option is not necessary, only "-skipcrccheck" is > needed. Can we change it to: > > {code:java} > Copying between encrypted and unencrypted locations > By default, distcp compares checksums provided by the filesystem to verify > that the data was successfully copied to the destination. When copying > between an unencrypted and encrypted location, the filesystem checksums will > not match since the underlying block data is different. In this case, specify > the -skipcrccheck flags to avoid verifying checksums. > {code} > -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org