[jira] [Assigned] (HADOOP-15273) distcp can't handle remote stores with different checksum algorithms
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https://issues.apache.org/jira/browse/HADOOP-15273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Stephen O'Donnell reassigned HADOOP-15273:
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Assignee: Stephen O'Donnell (was: Steve Loughran)
> distcp can't handle remote stores with different checksum algorithms
>
>
> 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
>Assignee: Stephen O'Donnell
>Priority: Critical
> Fix For: 3.1.0, 3.0.3
>
> Attachments: HADOOP-15273-001.patch, HADOOP-15273-002.patch,
> HADOOP-15273-003.patch
>
>
> When using distcp without {{-skipcrcchecks}} . 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.)
> update: the CRC check takes always place on a distcp upload before the file
> is renamed into place. *and you can't disable it then*
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[jira] [Assigned] (HADOOP-15273) distcp can't handle remote stores with different checksum algorithms
[
https://issues.apache.org/jira/browse/HADOOP-15273?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Steve Loughran reassigned HADOOP-15273:
---
Assignee: Steve Loughran
> distcp can't handle remote stores with different checksum algorithms
>
>
> 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
>Assignee: Steve Loughran
>Priority: Critical
> Attachments: HADOOP-15273-001.patch
>
>
> When using distcp without {{-skipcrcchecks}} . 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.)
> update: the CRC check takes always place on a distcp upload before the file
> is renamed into place. *and you can't disable it then*
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