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Posted to commits@cassandra.apache.org by "Paulo Motta (JIRA)" <ji...@apache.org> on 2016/03/08 13:38:40 UTC

[jira] [Updated] (CASSANDRA-11303) New inbound throughput parameters for streaming

     [ https://issues.apache.org/jira/browse/CASSANDRA-11303?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paulo Motta updated CASSANDRA-11303:
------------------------------------
    Reviewer: Paulo Motta

> New inbound throughput parameters for streaming
> -----------------------------------------------
>
>                 Key: CASSANDRA-11303
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11303
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Configuration
>            Reporter: Satoshi Konno
>            Priority: Minor
>         Attachments: cassandra_inbound_stream.diff
>
>
> Hi,
> To specify stream throughputs of a node more clearly, I would like to add the following new inbound parameters like existing outbound parameters in the cassandra.yaml.
> - stream_throughput_inbound_megabits_per_sec
> - inter_dc_stream_throughput_outbound_megabits_per_sec  
> We use only the existing outbound parameters now, but it is difficult to control the total throughputs of a node. In our production network, some critical alerts occurs when a node exceed the specified total throughput which is the sum of the input and output throughputs.
> In our operation of Cassandra, the alerts occurs during the bootstrap or repair processing when a new node is added. In the worst case, we have to stop the operation of the exceed node.
> I have attached the patch under consideration. I would like to add a new limiter class, StreamInboundRateLimiter, and use the limiter class in StreamDeserializer class. I use Row::dataSize( )to get the input throughput in StreamDeserializer::newPartition(), but I am not sure whether the dataSize() returns the correct data size.
> Can someone please tell me how to do it ?



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