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https://issues.apache.org/jira/browse/CASSANDRA-17477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17578110#comment-17578110
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Venkata Harikrishna Nukala commented on CASSANDRA-17477:
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I can work on it.
> -dc option for repair, prevents incremental repairs
> ---------------------------------------------------
>
> Key: CASSANDRA-17477
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17477
> Project: Cassandra
> Issue Type: Bug
> Components: Consistency/Repair
> Reporter: Pedro Gordo
> Priority: Normal
> Fix For: 4.0.x, 4.x
>
>
> By default running `{*}nodetool repair{*}` should trigger incremental
> repairs, but this does not happen if you use the `{*}-dc{*}` flag, even
> though the repair summary says `{*}incremental: true{*}`.
> You can replicate the issue with the following commands:
> {code:bash}
> ccm create test-incremental-repairs -v 4.0.1 -n 3 -s
> ccm node1 cqlsh -e "CREATE KEYSPACE keyspace1 WITH replication = {'class':
> 'NetworkTopologyStrategy', 'datacenter1': 2 };"
> ccm stress write
> ccm node1 nodetool "repair keyspace1 standard1 -dc datacenter1"
> find ~/.ccm/test-incremental-repairs/*/data0/keyspace1/standard1* -name
> *Data.db -exec <PATH_TO_TOOLS>/bin/sstablemetadata {} \; | grep Repaired
> ccm node1 nodetool "repair keyspace1 standard1"
> find ~/.ccm/test-incremental-repairs/*/data0/keyspace1/standard1* -name
> *Data.db -exec <PATH_TO_TOOLS>/bin/sstablemetadata {} \; | grep Repaired
> {code}
> You'll notice that the output for the first `{*}find{*}` command will all be
> `{*}Repaired at: 0{*}`, but the second `{*}find{*}` command will give you
> results like `{*}Repaired at: 1648044754464 (03/23/2022 14:12:34){*}`.
> At the same time, both `{*}nodetool repair{*}` commands will output like the
> following:
> {code:bash}
> [2022-03-23 15:15:52,500] Starting repair command #2
> (20f12190-aabc-11ec-a3d4-e9e5a941ef6c), repairing keyspace keyspace1 with
> repair options (parallelism: parallel, primary range: false, incremental:
> true, job threads: 1, ColumnFamilies: [standard1], dataCenters:
> [datacenter1], hosts: [], previewKind: NONE, # of ranges: 2, pull repair:
> false, force repair: false, optimise streams: false, ignore unreplicated
> keyspaces: false)
> {code}
> Indicating `{*}incremental: true{*}` for both of them.
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