[jira] [Assigned] (CASSANDRA-6487) Log WARN on large batch sizes

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-6487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis reassigned CASSANDRA-6487:
-----------------------------------------

    Assignee: Lyuben Todorov

> Log WARN on large batch sizes
> -----------------------------
>
>                 Key: CASSANDRA-6487
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6487
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Patrick McFadin
>            Assignee: Lyuben Todorov
>            Priority: Minor
>
> Large batches on a coordinator can cause a lot of node stress. I propose adding a WARN log entry if batch sizes go beyond a configurable size. This will give more visibility to operators on something that can happen on the developer side. 
> New yaml setting with 5k default.
> {{# Log WARN on any batch size exceeding this value. 5k by default.}}
> {{# Caution should be taken on increasing the size of this threshold as it can lead to node instability.}}
> {{batch_size_warn_threshold: 5k}}



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