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https://issues.apache.org/jira/browse/CASSANDRA-12144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15383796#comment-15383796
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Alex Petrov commented on CASSANDRA-12144:
-----------------------------------------

Upgrade tests look ok. Yesterday we discovered that the upgrade tests were 
triggered against the incorrect `3_0` release. I've checked all the failures 
locally against trunk, and they all are happening without the patch as well. 
Also, they look unrelated, as some of them (paging tests) are failing on 
non-upgraded nodes. 

Summary of failing tests:
{code}
select_with_alias_test
basic_compound_paging_test
test_paging_using_secondary_indexes
basic_paging_test
test_paging_using_secondary_indexes_with_static_cols
test_with_allow_filtering
map_keys_indexing_test
basic_compound_paging_tet
static_columns_paging_test
{code}

CI results look ok as well.

> Undeletable rows after upgrading from 2.2.4 to 3.0.7
> ----------------------------------------------------
>
>                 Key: CASSANDRA-12144
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12144
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Stanislav Vishnevskiy
>            Assignee: Alex Petrov
>
> We upgraded our cluster today and now have a some rows that refuse to delete.
> Here are some example traces.
> https://gist.github.com/vishnevskiy/36aa18c468344ea22d14f9fb9b99171d
> Even weirder.
> Updating the row and querying it back results in 2 rows even though the id is 
> the clustering key.
> {noformat}
> user_id            | id                 | since                    | type
> -------------------+--------------------+--------------------------+------
> 116138050710536192 | 153047019424972800 |                     null |    0
> 116138050710536192 | 153047019424972800 | 2016-05-30 14:53:08+0000 |    2
> {noformat}
> And then deleting it again only removes the new one.
> {noformat}
> cqlsh:discord_relationships> DELETE FROM relationships WHERE user_id = 
> 116138050710536192 AND id = 153047019424972800;
> cqlsh:discord_relationships> SELECT * FROM relationships WHERE user_id = 
> 116138050710536192 AND id = 153047019424972800;
>  user_id            | id                 | since                    | type
> --------------------+--------------------+--------------------------+------
>  116138050710536192 | 153047019424972800 | 2016-05-30 14:53:08+0000 |    2
> {noformat}
> We tried repairing, compacting, scrubbing. No Luck.
> Not sure what to do. Is anyone aware of this?



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