"
This work is on top of Gleb's rpc streaming which is merged recently.
What this series does is to replace scylla streaming service's data plane to
use the new rpc streaming instead of the old rpc verb to send the mutations for
scylla streaming. Other parts of scylla streaming, the control plane, are not
changed.
In my test, to bootstrap a new node to the existing one node cluster, smp 2,
scylla stores data on ramdisk to minimize disk io impact.
I saw x2 improvment in streaming bandwidth.
Before:
[shard 0] stream_session - [Stream #2ae92320-5fc8-11e8-911a-000000000000]
Streaming plan for Bootstrap-ks3-index-0 succeeded, peers={127.0.0.1}, tx=0 KiB, 0.00 KiB/s, rx=1570312 KiB, 109521.02 KiB/s
[shard 0] range_streamer - Bootstrap with 127.0.0.1 for keyspace=ks3 succeeded, took 14.338 seconds
After:
[shard 0] stream_session - [Stream #e5589ac0-5fc7-11e8-b463-000000000000]
Streaming plan for Bootstrap-ks3-index-0 succeeded, peers={127.0.0.1}, tx=0 KiB, 0.00 KiB/s, rx=1546875 KiB, 220415.36 KiB/s
[shard 0] range_streamer - Bootstrap with 127.0.0.1 for keyspace=ks3 succeeded, took 7.018 seconds
Tests: dtest update_cluster_layout_tests.py
Fixes: #3591
"
* tag 'asias/scylla_streaming_with_rpc_streaming_v8' of github.com:scylladb/seastar-dev:
streaming: Add rpc streaming support
storage_service: Introduce STREAM_WITH_RPC_STREAM feature
streaming: Add estimate_partitions to send_info
messaging_service: Add streaming with rpc streaming support
messaging_service: Add streaming_domain
database: Add add_sstable_and_update_cache
database: Add make_streaming_sstable_for_write
8ee807321f