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From "Vijay (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-3648) Repair should validate checksums before streaming
Date Mon, 31 Dec 2012 05:26:12 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-3648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vijay updated CASSANDRA-3648:
-----------------------------

    Attachment: 0001-CASSANDRA-3648.patch

Attached patch has DataIntegratyMetadata for Uncompressed SST's, basically while flushing
the buffer checksum is calculated and written to a separate CRC file. while streaming for
bootstrap or after manual repair, we will check the chunk checksum (If crc file exists) before
streaming the data over. 

Let me know if this is good enough. For RR it is kind of really expensive and we might be
better off with compressed Data than checking for checksums.
                
> Repair should validate checksums before streaming
> -------------------------------------------------
>
>                 Key: CASSANDRA-3648
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3648
>             Project: Cassandra
>          Issue Type: New Feature
>            Reporter: Jonathan Ellis
>            Assignee: Vijay
>            Priority: Minor
>             Fix For: 2.0
>
>         Attachments: 0001-CASSANDRA-3648.patch
>
>
> We have block checksums and sha1 full-file hashes, but currently we do not validate these
before streaming in a repair.

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