[ https://issues.apache.org/jira/browse/HADOOP-15273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran updated HADOOP-15273: ------------------------------------ Summary: distcp to downgrade on checksum algorithm mismatch to "files unchanged" (was: distcp error message on checksum mismatch is misleading when checksum protocol itself is different) > distcp to downgrade on checksum algorithm mismatch to "files unchanged" > ----------------------------------------------------------------------- > > Key: HADOOP-15273 > URL: https://issues.apache.org/jira/browse/HADOOP-15273 > Project: Hadoop Common > Issue Type: Bug > Components: tools/distcp > Affects Versions: 3.1.0 > Reporter: Steve Loughran > Priority: Minor > > When using distcp without {{-skipCRC}} . If there's a checksum mismatch > between src and dest store types (e.g hdfs to s3), then the error message > will talk about blocksize, even when its the underlying checksum protocol > itself which is the cause for failure > bq. Source and target differ in block-size. Use -pb to preserve block-sizes > during copy. Alternatively, skip checksum-checks altogether, using -skipCrc. > (NOTE: By skipping checksums, one runs the risk of masking data-corruption > during file-transfer.) > IF the checksum types are fundamentally different, the error message should > say so -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org