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From "Satoshi Konno (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-11303) New inbound throughput parameters for streaming
Date Thu, 30 Jun 2016 07:50:10 GMT


Satoshi Konno commented on CASSANDRA-11303:

Hi [~ pauloricardomg],

I misunderstood about your review comments that you fixed my patches X-<
I will send the new patch based on your comments as soon as possible.

> New inbound throughput parameters for streaming
> -----------------------------------------------
>                 Key: CASSANDRA-11303
>                 URL:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Configuration
>            Reporter: Satoshi Konno
>            Priority: Minor
>         Attachments: 11303_inbound_limit_debug_20160419.log, 11303_inbound_nolimit_debug_20160419.log,
11303_inbound_patch_for_trunk_20160419.diff, 11303_inbound_patch_for_trunk_20160525.diff,
200vs40inboundstreamthroughput.png, 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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