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https://issues.apache.org/jira/browse/CASSANDRA-13529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16415113#comment-16415113
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Dinesh Joshi commented on CASSANDRA-13529:
------------------------------------------

Hi [[email protected]], looks nice. Some more things we can improve 
on -
 # # {{CASQuery}} - {{bindArgs, fillRandom, random, randomBuffer}} are not 
used. Please remove.
 # {{PartitionGenerator}} - {{partitionKey}} and {{clusteringComponents}} - use 
getters instead of making fields public and return immutable copies of the 
lists.
 # {{CASQuery::prepareCASDynamicConditionsReadStatement}} - on line 138 instead 
of forced typecasting use {{Math.toIntExact}}
 # {{CASQuery::prepareCASDynamicConditionsReadStatement}} - on line 135 {{new 
HashMap()}} is unchecked assignment. This should be {{new HashMap<>()}}.
 # {{keysIndex = new ArrayList<Integer>();}} use {{<>}} operator
 # Please add a sample profile in {{tools}} directory and update the in-tree 
docs ({{eg. doc/tools/cassandra_stress.rst}})

Nits:
 # {{CASQuery - PartitionIterator, Random}} - unused imports. Please remove.
 # {{CASQuery::prepareCASDynamicConditionsReadStatement}} - 
{{modificationStatement}} do you actually need to initialize this to {{null}}?
 # {{QueryUtil::dynamicConditionsExist}} - typo in comment - `differenciate` -> 
`differentiate`.

> cassandra-stress light-weight transaction support
> -------------------------------------------------
>
>                 Key: CASSANDRA-13529
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13529
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Stress
>            Reporter: Jaydeepkumar Chovatia
>            Assignee: Jaydeepkumar Chovatia
>            Priority: Minor
>             Fix For: 4.x
>
>         Attachments: 13529.txt, lwttest.yaml
>
>
> It would be nice to have a light-weight transaction support in 
> cassandra-stress.
> Although currently in cassandra-stress we can achieve light-weight 
> transaction partially by using static conditions like "IF col1 != null" or 
> "IF not EXIST". 
> If would be ideal to have full fledged light-weight transaction support like 
> "IF col1 = ? and col2 = ?". One way to implement is to read values from 
> Cassandra and use that in the condition so it will execute all the paxos 
> phases in Cassandra.
> Please find git link for the patch: 
> https://github.com/apache/cassandra/compare/trunk...jaydeepkumar1984:13529-trunk?expand=1
> ||trunk|
> |[branch|https://github.com/jaydeepkumar1984/cassandra/tree/13529-trunk]|
> |[utests|https://circleci.com/gh/jaydeepkumar1984/cassandra/8]|



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