[jira] [Commented] (CASSANDRA-15402) Make incremental backup configurable per keyspace and table

["maxwellguo (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-15402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16977475#comment-16977475 ] 

maxwellguo commented on CASSANDRA-15402:
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I have got a question here if anyone can help with it ? should we disable the incremental backup for system keyspace ? I just finish the code and do some simple test here. But I found that if we do need to backup system/system_schema/system_trace/system_auth/system_distributed? 

> Make incremental backup configurable per keyspace and table
> -----------------------------------------------------------
>
>                 Key: CASSANDRA-15402
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15402
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Local/Other, Tool/nodetool
>            Reporter: maxwellguo
>            Assignee: maxwellguo
>            Priority: Normal
>             Fix For: 4.x
>
>
> We know that when we do backup for cassandra, we can do full bakcup with snapshot, when we need to backup incremental data , incremental_backup can do some help . 
> For snapshot we can just make snapshot for some keyspace/table. but incremental backup will do all data backup(make hard link for all sstable that flush from memtable or streaming ). we also know that commitlog's replay can do some keyspace /table 's filter. 
> So  I think for incremental backup we also need some filter for it.After all not all keyspace/table is so important to do backup.



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