Re: Question related to nodetool repair options

[Deepak Sharma]

Thanks Erick! It is clear now.

On Tue, Sep 7, 2021 at 4:07 PM Erick Ramirez 
wrote:

> No, I'm just saying that [-pr] is the same as [-pr -full], NOT the same as
> just [-full] on its own. Primary range repairs are not compatible with
> incremental repairs so by definition, -pr is a [-pr -full] repair. I think
> you're confusing the concept of a full repair vs incremental. This document
> might help you understand the concepts --
> https://docs.datastax.com/en/cassandra-oss/3.x/cassandra/operations/opsRepairNodesManualRepair.html.
> Cheers!
>
>>

Re: Question related to nodetool repair options

[Erick Ramirez]

No, I'm just saying that [-pr] is the same as [-pr -full], NOT the same as
just [-full] on its own. Primary range repairs are not compatible with
incremental repairs so by definition, -pr is a [-pr -full] repair. I think
you're confusing the concept of a full repair vs incremental. This document
might help you understand the concepts --
https://docs.datastax.com/en/cassandra-oss/3.x/cassandra/operations/opsRepairNodesManualRepair.html.
Cheers!

>

Re: Question related to nodetool repair options

[Deepak Sharma]

Thanks Erick for the response. So in option 3, -pr is not taken into
consideration which essentially means option 3 is the same as option 1
(which is the full repair).

Right, just want to be sure?

Best,
Deepak

On Tue, Sep 7, 2021 at 3:41 PM Erick Ramirez 
wrote:

>
>1. Will perform a full repair vs incremental which is the default in
>some later versions.
>2. As you said, will only repair the token range(s) on the node for
>which it is a primary owner.
>3. The -full flag with -pr is redundant -- primary range repairs are
>always done as a full repair because it is not compatible with incremental
>repairs,, i.e. -pr doesn't care that an SSTable is already marked as
>repaired.
>
>

Re: Question related to nodetool repair options

[Erick Ramirez]

   1. Will perform a full repair vs incremental which is the default in
   some later versions.
   2. As you said, will only repair the token range(s) on the node for
   which it is a primary owner.
   3. The -full flag with -pr is redundant -- primary range repairs are
   always done as a full repair because it is not compatible with incremental
   repairs,, i.e. -pr doesn't care that an SSTable is already marked as
   repaired.

Question related to nodetool repair options

[Deepak Sharma]

Hi There,

We are on Cassandra 3.0.11 and I want to understand what is the
difference between following two commands

1. nodetool repair -full
2. nodetool repair -pr
3. nodetool repair -full -pr

As per my understanding 1. will do the full repair across all keyspaces. 2.
with -pr, restricts repair to the 'primary' token ranges of the node being
repaired. With 3. I am not sure what we are trying to achieve.

Thanks,
Deepak