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https://issues.apache.org/jira/browse/CASSPYTHON-29?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18126394#comment-18126394
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Bohdan Siryk commented on CASSPYTHON-29:
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> is the 64K limit applied per *<k>* and *<v>* string,
It is applied to:
- Both key and value strings - each of them might be up to 64K
- Amount of entries in the map - up to 64K key-value pairs
> I'm trying to understand whether someone could send an extremely large map
> (e.g. 20GB) and potentially crash nodes with OOM.
Maximum request size is limited by
[native_transport_max_frame_size|https://cassandra.apache.org/doc/latest/cassandra/managing/configuration/cass_yaml_file.html#native_transport_max_frame_size]
option in cassandra.yaml which is 16 MB by default. So it potentially could,
but it needs specific configuration tunning.
> Allow user to specify arbitrary parameters for STARTUP message
> --------------------------------------------------------------
>
> Key: CASSPYTHON-29
> URL: https://issues.apache.org/jira/browse/CASSPYTHON-29
> Project: Apache Cassandra Python driver
> Issue Type: Improvement
> Components: Core
> Reporter: Swathi Sekar
> Assignee: Bohdan Siryk
> Priority: Normal
> Fix For: 4.0.0
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Modify the driver to allow sending arbitrary STARTUP message options.
> Proposed design:
> - Add `extra_startup_options` param to Cluster constructor.
> - Thread it through Cluster -> connection setup (cluster.py) ->
> StartupMessage.
> - Define clear precedence/conflict behavior when duplicate/conflicting
> options are passed into the StartupMessage constructor.
> *Note:*
> This Jira was originally created for sending the client's application name
> and version as `APPLICATION_NAME` /
> `APPLICATION_VERSION` options in the STARTUP message, which is tied to the
> now-defunct DataStax Insights offering.
> Since the Java driver (5.0.0) and eventually C/C++ driver (3.0.0) are
> removing withApplicationName()/withApplicationVersion() entirely, this ticket
> has been updated.
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