The generation (integer id in file names) doesn’t matter for ordering like this
It matters in schema tables for addition of new columns/types, but it’s
irrelevant for normal tables - you could do a user defined compaction on 31384
right now and it’d be rewritten as-is (minus purgable data) with the new
highest generation, even though it’s all old data.
--
Jeff Jirsa
> On Dec 15, 2017, at 6:55 AM, Python_Max <python....@gmail.com> wrote:
>
> Hi, Kurt.
>
> Thank you for response.
>
>
> Repairs are marked as 'done' without errors in reaper history.
>
> Example of 'wrong order':
> * file mc-31384-big-Data.db contains tombstone:
> {
> "type" : "row",
> "position" : 7782,
> "clustering" : [ "9adab970-b46d-11e7-a5cd-a1ba8cfc1426" ],
> "deletion_info" : { "marked_deleted" : "2017-10-28T04:51:20.589394Z",
> "local_delete_time" : "2017-10-28T04:51:20Z" },
> "cells" : [ ]
> }
>
> * file mc-31389-big-Data.db contains data:
> {
> "type" : "row",
> "position" : 81317,
> "clustering" : [ "9adab970-b46d-11e7-a5cd-a1ba8cfc1426" ],
> "liveness_info" : { "tstamp" : "2017-10-19T01:34:10.055389Z" },
> "cells" : [...]
> }
> Index 31384 is less than 31389 but I'm not sure whether it matters at all.
>
> I assume that data and tombsones are not compacting due to another reason:
> the tokens are not owned by that node anymore and the only way to purge such
> keys is 'nodetool cleanup', isn't it?
>
>
>> On 14.12.17 16:14, kurt greaves wrote:
>> Are you positive your repairs are completing successfully? Can you send
>> through an example of the data in the wrong order? What you're saying
>> certainly shouldn't happen, but there's a lot of room for mistakes.
>>
>>> On 14 Dec. 2017 20:13, "Python_Max" <python....@gmail.com> wrote:
>>> Thank you for reply.
>>>
>>> No, I did not execute 'nodetool cleanup'. Documentation
>>> https://docs.datastax.com/en/cassandra/3.0/cassandra/operations/opsRemoveNode.html
>>> does not mention that cleanup is required.
>>>
>>> Do yo think that extra data which node is not responsible for can lead to
>>> zombie data?
>>>
>>>
>>>> On 13.12.17 18:43, Jeff Jirsa wrote:
>>>> Did you run cleanup before you shrank the cluster?
>>>>
>>>
>>> --
>>>
>>> Best Regards,
>>> Python_Max.
>>>
>>>
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>>> happen
>
> --
>
> Best Regards,
> Python_Max.
