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https://issues.apache.org/jira/browse/CASSANDRA-14781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17009694#comment-17009694
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Aleksey Yeschenko commented on CASSANDRA-14781:
-----------------------------------------------

For what it's worth, I would strongly prefer the memoised fields to be inlined 
into {{Mutation}}, same way they are in {{Message}}. It's a very common object, 
and the bloat of the overhead of an extra {{SizeHolder}} object vs. just the 3 
inlined fields matters.

We do want the memoisation itself, as otherwise we would be performing this 
calculation at least twice - once when validation, once when calculating 
message size for internode.

> Log message when mutation passed to CommitLog#add(Mutation) is too large is 
> not descriptive enough
> --------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-14781
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14781
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Consistency/Hints, Local/Commit Log, Messaging/Client
>            Reporter: Jordan West
>            Assignee: Tom Petracca
>            Priority: Normal
>              Labels: protocolv5
>             Fix For: 4.0-beta
>
>         Attachments: CASSANDRA-14781.patch, CASSANDRA-14781_3.0.patch, 
> CASSANDRA-14781_3.11.patch
>
>
> When hitting 
> [https://github.com/apache/cassandra/blob/cassandra-3.0/src/java/org/apache/cassandra/db/commitlog/CommitLog.java#L256-L257],
>  the log message produced does not help the operator track down what data is 
> being written. At a minimum the keyspace and cfIds involved would be useful 
> (and are available) – more detail might not be reasonable to include. 



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