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scylladb/streaming/stream_session.cc
Michał Jadwiszczak 0f3827d509 streaming/stream_blob: register staging sstables to process them 
After scylladb/scylladb#22034, staging status of sstables streamed
via file streaming was ignored and view updates were never generated.

This patch fixes it and now staging sstables are registered to
`view_building_worker`. Then, the worker create view building tasks
for those sstables, so the view building coordinator can schedule them
once the tablet migration is finished.

Fixes scylladb/scylla-enterprise#4572
2025-09-23 15:34:42 +02:00

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/*
*
* Modified by ScyllaDB
* Copyright (C) 2015-present ScyllaDB
*/
/*
* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.0 and Apache-2.0)
*/
#include "locator/token_metadata.hh"
#include "utils/log.hh"
#include "message/messaging_service.hh"
#include <seastar/coroutine/maybe_yield.hh>
#include "streaming/stream_session.hh"
#include "streaming/prepare_message.hh"
#include "streaming/stream_result_future.hh"
#include "streaming/stream_manager.hh"
#include "dht/auto_refreshing_sharder.hh"
#include <seastar/core/sleep.hh>
#include <seastar/core/thread.hh>
#include "streaming/stream_blob.hh"
#include "streaming/stream_session_state.hh"
#include "streaming/table_check.hh"
#include "service/migration_manager.hh"
#include "mutation_writer/multishard_writer.hh"
#include "sstables/sstable_set.hh"
#include "db/view/view_update_checks.hh"
#include "replica/database.hh"
#include "streaming/stream_mutation_fragments_cmd.hh"
#include "consumer.hh"
#include "readers/generating.hh"
#include "service/topology_guard.hh"
#include "utils/assert.hh"
#include "utils/error_injection.hh"
#include "db/config.hh"
#include "idl/streaming.dist.hh"
namespace streaming {
logging::logger sslog("stream_session");
static sstables::offstrategy is_offstrategy_supported(streaming::stream_reason reason) {
static const std::unordered_set<streaming::stream_reason> operations_supported = {
streaming::stream_reason::bootstrap,
streaming::stream_reason::replace,
streaming::stream_reason::removenode,
streaming::stream_reason::decommission,
streaming::stream_reason::repair,
streaming::stream_reason::rebuild,
};
return sstables::offstrategy(operations_supported.contains(reason));
}
class offstrategy_trigger {
sharded<replica::database>& _db;
table_id _id;
streaming::plan_id _plan_id;
replica::column_family& _cf;
lowres_clock::time_point last_update;
public:
offstrategy_trigger(sharded<replica::database>& db, table_id id, streaming::plan_id plan_id)
: _db(db)
, _id(id)
, _plan_id(plan_id)
, _cf(_db.local().find_column_family(_id))
{
_cf.enable_off_strategy_trigger();
}
void update() {
auto now = lowres_clock::now();
// Call update_off_strategy_trigger at most every 30s. In the worst
// case, we would shorten the offstrategy trigger timer by 10%. The
// reward is that we now batch thousands or even millions of calls to
// update_off_strategy_trigger. The update() is called for each and
// every mutation fragment we received. So it is worth the
// optimization.
if (now - last_update > std::chrono::seconds(30)) {
sslog.debug("[Stream #{}] Updated offstrategy trigger for ks={}, table={}, table_id={}",
_plan_id, _cf.schema()->ks_name(), _cf.schema()->cf_name(), _id);
_cf.update_off_strategy_trigger();
last_update = now;
}
}
};
mutation_reader_consumer
stream_manager::make_streaming_consumer(uint64_t estimated_partitions, stream_reason reason, service::frozen_topology_guard topo_guard) {
return streaming::make_streaming_consumer("streaming", _db, _view_builder, _view_building_worker, estimated_partitions, reason, is_offstrategy_supported(reason), topo_guard);
}
void stream_manager::init_messaging_service_handler(abort_source& as) {
auto& ms = _ms.local();
ser::streaming_rpc_verbs::register_prepare_message(&ms, [this] (const rpc::client_info& cinfo, prepare_message msg, streaming::plan_id plan_id, sstring description, rpc::optional<stream_reason> reason_opt, rpc::optional<service::session_id> session) {
const auto& src_cpu_id = cinfo.retrieve_auxiliary<uint32_t>("src_cpu_id");
const auto& from = cinfo.retrieve_auxiliary<locator::host_id>("host_id");
auto dst_cpu_id = this_shard_id();
auto reason = reason_opt ? *reason_opt : stream_reason::unspecified;
auto topo_guard = service::frozen_topology_guard(session.value_or(service::default_session_id));
return container().invoke_on(dst_cpu_id, [msg = std::move(msg), plan_id, description = std::move(description), from, src_cpu_id, reason, topo_guard] (auto& sm) mutable {
auto sr = stream_result_future::init_receiving_side(sm, plan_id, description, from);
auto session = sm.get_session(plan_id, from, "PREPARE_MESSAGE");
session->init(sr);
session->dst_cpu_id = src_cpu_id;
session->set_reason(reason);
session->set_topo_guard(topo_guard);
return session->prepare(std::move(msg.requests), std::move(msg.summaries));
});
});
ser::streaming_rpc_verbs::register_prepare_done_message(&ms, [this] (const rpc::client_info& cinfo, streaming::plan_id plan_id, unsigned dst_cpu_id) {
const auto& from = cinfo.retrieve_auxiliary<locator::host_id>("host_id");
return container().invoke_on(dst_cpu_id, [plan_id, from] (auto& sm) mutable {
auto session = sm.get_session(plan_id, from, "PREPARE_DONE_MESSAGE");
session->follower_start_sent();
return make_ready_future<>();
});
});
ms.register_stream_mutation_fragments([this, &as] (const rpc::client_info& cinfo, streaming::plan_id plan_id, table_schema_version schema_id, table_id cf_id, uint64_t estimated_partitions,
rpc::optional<stream_reason> reason_opt,
rpc::source<frozen_mutation_fragment, rpc::optional<stream_mutation_fragments_cmd>> source,
rpc::optional<service::session_id> session) {
auto from = cinfo.retrieve_auxiliary<locator::host_id>("host_id");
auto cpu_id = cinfo.retrieve_auxiliary<uint32_t>("src_cpu_id");
auto src = cinfo.retrieve_auxiliary<locator::host_id>("host_id");
auto reason = reason_opt ? *reason_opt: stream_reason::unspecified;
service::frozen_topology_guard topo_guard = session.value_or(service::default_session_id);
sslog.trace("Got stream_mutation_fragments from {} reason {}, session {}", from, int(reason), session);
return _mm.local().get_schema_for_write(schema_id, src, cpu_id, _ms.local(), as).then([this, from, estimated_partitions, plan_id, cf_id, source, reason, topo_guard, &as] (schema_ptr s) mutable {
auto permit = _db.local().get_reader_concurrency_semaphore().make_tracking_only_permit(s, "stream-session", db::no_timeout, {});
struct stream_mutation_fragments_cmd_status {
bool got_cmd = false;
bool got_end_of_stream = false;
};
auto cmd_status = make_lw_shared<stream_mutation_fragments_cmd_status>();
auto offstrategy_update = make_lw_shared<offstrategy_trigger>(_db, cf_id, plan_id);
auto guard = service::topology_guard(topo_guard);
// Will log a message when streaming is done. Used to synchronize tests.
lw_shared_ptr<std::any> log_done;
if (utils::get_local_injector().is_enabled("stream_mutation_fragments")) {
log_done = make_lw_shared<std::any>(seastar::make_shared(seastar::defer([] {
sslog.info("stream_mutation_fragments: done");
})));
}
auto get_next_mutation_fragment = [guard = std::move(guard), &as, &sm = container(), source, plan_id, from, s, cmd_status, offstrategy_update, permit] () mutable {
guard.check();
return source().then([&sm, &guard, &as, plan_id, from, s, cmd_status, offstrategy_update, permit] (std::optional<std::tuple<frozen_mutation_fragment, rpc::optional<stream_mutation_fragments_cmd>>> opt) mutable {
if (opt) {
auto cmd = std::get<1>(*opt);
if (cmd) {
cmd_status->got_cmd = true;
switch (*cmd) {
case stream_mutation_fragments_cmd::mutation_fragment_data:
break;
case stream_mutation_fragments_cmd::error:
return make_exception_future<mutation_fragment_opt>(std::runtime_error("Sender failed"));
case stream_mutation_fragments_cmd::abort:
return make_exception_future<mutation_fragment_opt>(rpc::canceled_error());
case stream_mutation_fragments_cmd::end_of_stream:
cmd_status->got_end_of_stream = true;
return make_ready_future<mutation_fragment_opt>();
default:
return make_exception_future<mutation_fragment_opt>(std::runtime_error("Sender sent wrong cmd"));
}
}
frozen_mutation_fragment& fmf = std::get<0>(*opt);
auto sz = fmf.representation().size();
auto mf = fmf.unfreeze(*s, permit);
sm.local().update_progress(plan_id, from, progress_info::direction::IN, sz);
offstrategy_update->update();
return utils::get_local_injector().inject("stream_mutation_fragments", [&guard, &as] (auto& handler) -> future<> {
auto& guard_ = guard;
auto& as_ = as;
sslog.info("stream_mutation_fragments: waiting");
while (!handler.poll_for_message()) {
guard_.check();
co_await sleep_abortable(std::chrono::milliseconds(5), as_);
}
sslog.info("stream_mutation_fragments: released");
}).then([mf = std::move(mf)] () mutable {
if (utils::get_local_injector().is_enabled("stream_mutation_fragments_rx_error")) {
sslog.info("stream_mutation_fragments_rx_error: throw");
throw std::runtime_error("stream_mutation_fragments_rx_error");
}
return mutation_fragment_opt(std::move(mf));
});
} else {
// If the sender has sent stream_mutation_fragments_cmd it means it is
// a node that understands the new protocol. It must send end_of_stream
// before close the stream.
if (cmd_status->got_cmd && !cmd_status->got_end_of_stream) {
return make_exception_future<mutation_fragment_opt>(std::runtime_error("Sender did not sent end_of_stream"));
}
return make_ready_future<mutation_fragment_opt>();
}
});
};
auto sink = _ms.local().make_sink_for_stream_mutation_fragments(source);
try {
// Make sure the table with cf_id is still present at this point.
// Close the sink in case the table is dropped.
auto& table = _db.local().find_column_family(cf_id);
utils::get_local_injector().inject("stream_mutation_fragments_table_dropped", [this] () {
_db.local().find_column_family(table_id::create_null_id());
});
auto op = table.stream_in_progress();
auto sharder_ptr = std::make_unique<dht::auto_refreshing_sharder>(table.shared_from_this());
auto& sharder = *sharder_ptr;
auto result_handling_cont = [this, s, plan_id, from, sink, estimated_partitions, log_done, cf_id, sh_ptr = std::move(sharder_ptr)] (future<uint64_t> f) mutable -> future<> {
auto& db = _db;
auto& mm = _mm;
int32_t status = 0;
uint64_t received_partitions = 0;
if (f.failed()) {
auto ex = f.get_exception();
auto level = seastar::log_level::error;
if (try_catch<seastar::rpc::stream_closed>(ex)) {
level = seastar::log_level::debug;
}
bool aborted = false;
if (auto nested = try_catch<nested_exception>(ex)) {
if (try_catch<rpc::canceled_error>(nested->inner)) {
level = seastar::log_level::info;
aborted = true;
}
}
status = -1;
// The status code -2 means error and the table is dropped
if (db.local_is_initialized() && mm.local_is_initialized() && co_await table_sync_and_check(db.local(), mm.local(), cf_id)) {
level = seastar::log_level::debug;
status = -2;
}
sslog.log(level, "[Stream #{}] Failed to handle STREAM_MUTATION_FRAGMENTS (receive and distribute phase) for ks={}, cf={}, peer={}: {}",
plan_id, s->ks_name(), s->cf_name(), from, aborted?"Streaming aborted":format("{}",ex));
} else {
received_partitions = f.get();
}
if (received_partitions) {
sslog.info("[Stream #{}] Write to sstable for ks={}, cf={}, estimated_partitions={}, received_partitions={}",
plan_id, s->ks_name(), s->cf_name(), estimated_partitions, received_partitions);
}
if (status == -1) {
try {
if (!utils::get_local_injector().is_enabled("stream_mutation_fragments_skip_fail_stream_plan")) {
co_await fail_stream_plan(plan_id);
}
} catch (...) {
sslog.warn("[Stream #{}] Failed to abort the stream plan: {}", plan_id, std::current_exception());
}
}
co_await sink(status).finally([sink] () mutable {
return sink.close();
});
};
//FIXME: discarded future.
(void)do_with(std::move(result_handling_cont), [&] (auto& result_handling) {
return mutation_writer::distribute_reader_and_consume_on_shards(s, sharder,
make_generating_reader_v1(s, permit, std::move(get_next_mutation_fragment)),
make_streaming_consumer(estimated_partitions, reason, topo_guard),
std::move(op)
).then_wrapped(std::ref(result_handling)).handle_exception([s, plan_id, from, sink] (std::exception_ptr ep) mutable -> future<> {
auto level = seastar::log_level::error;
if (try_catch<seastar::rpc::closed_error>(ep)) {
level = seastar::log_level::debug;
}
sslog.log(level, "[Stream #{}] Failed to handle STREAM_MUTATION_FRAGMENTS (respond phase) for ks={}, cf={}, peer={}: {}",
plan_id, s->ks_name(), s->cf_name(), from, ep);
co_await sink.close();
});
});
} catch (...) {
return sink.close().then([sink, eptr = std::current_exception()] () -> future<rpc::sink<int>> {
return make_exception_future<rpc::sink<int>>(eptr);
});
}
return make_ready_future<rpc::sink<int>>(sink);
});
});
ser::streaming_rpc_verbs::register_stream_mutation_done(&ms, [this] (const rpc::client_info& cinfo, streaming::plan_id plan_id, dht::token_range_vector ranges, table_id cf_id, unsigned dst_cpu_id) {
const auto& from = cinfo.retrieve_auxiliary<locator::host_id>("host_id");
return container().invoke_on(dst_cpu_id, [ranges = std::move(ranges), plan_id, cf_id, from] (auto& sm) mutable {
auto session = sm.get_session(plan_id, from, "STREAM_MUTATION_DONE", cf_id);
session->receive_task_completed(cf_id);
});
});
ser::streaming_rpc_verbs::register_complete_message(&ms, [this] (const rpc::client_info& cinfo, streaming::plan_id plan_id, unsigned dst_cpu_id, rpc::optional<bool> failed) {
const auto& from = cinfo.retrieve_auxiliary<locator::host_id>("host_id");
if (failed && *failed) {
return container().invoke_on(dst_cpu_id, [plan_id, from, dst_cpu_id] (auto& sm) {
auto session = sm.get_session(plan_id, from, "COMPLETE_MESSAGE");
sslog.debug("[Stream #{}] COMPLETE_MESSAGE with error flag from {} dst_cpu_id={}", plan_id, from, dst_cpu_id);
session->received_failed_complete_message();
return make_ready_future<>();
});
} else {
// Be compatible with old version. Do nothing but return a ready future.
sslog.debug("[Stream #{}] COMPLETE_MESSAGE from {} dst_cpu_id={}", plan_id, from, dst_cpu_id);
return make_ready_future<>();
}
});
ms.register_stream_blob([this] (const rpc::client_info& cinfo, streaming::stream_blob_meta meta, rpc::source<streaming::stream_blob_cmd_data> source) {
const auto& from = cinfo.retrieve_auxiliary<locator::host_id>("host_id");
auto sink = _ms.local().make_sink_for_stream_blob(source);
(void)stream_blob_handler(_db.local(), _view_building_worker.local(), _ms.local(), from, meta, sink, source).handle_exception([ms = _ms.local().shared_from_this()] (std::exception_ptr eptr) {
sslog.warn("Failed to run stream blob handler: {}", eptr);
});
return make_ready_future<rpc::sink<streaming::stream_blob_cmd_data>>(sink);
});
}
future<> stream_manager::uninit_messaging_service_handler() {
auto& ms = _ms.local();
return when_all_succeed(
ser::streaming_rpc_verbs::unregister(&ms),
ms.unregister_stream_blob(),
ms.unregister_stream_mutation_fragments()).discard_result();
}
stream_session::stream_session(stream_manager& mgr, locator::host_id peer_)
: peer(peer_)
, _mgr(mgr)
{
//this.metrics = StreamingMetrics.get(connecting);
}
stream_session::~stream_session() = default;
future<> stream_session::on_initialization_complete() {
// send prepare message
set_state(stream_session_state::PREPARING);
auto prepare = prepare_message();
std::copy(_requests.begin(), _requests.end(), std::back_inserter(prepare.requests));
for (auto& x : _transfers) {
prepare.summaries.emplace_back(x.second.get_summary());
}
auto id = this->peer;
sslog.debug("[Stream #{}] SEND PREPARE_MESSAGE to {}", plan_id(), id);
return ser::streaming_rpc_verbs::send_prepare_message(&manager().ms(), id, std::move(prepare), plan_id(), description(), get_reason(), topo_guard()).then_wrapped([this, id] (auto&& f) {
try {
auto msg = f.get();
sslog.debug("[Stream #{}] GOT PREPARE_MESSAGE Reply from {}", this->plan_id(), this->peer);
this->dst_cpu_id = msg.dst_cpu_id;
for (auto& summary : msg.summaries) {
this->prepare_receiving(summary);
}
if (_stream_result) {
_stream_result->handle_session_prepared(this->shared_from_this());
}
} catch (...) {
sslog.warn("[Stream #{}] Fail to send PREPARE_MESSAGE to {}, {}", this->plan_id(), id, std::current_exception());
throw;
}
return make_ready_future<>();
}).then([this, id] {
auto plan_id = this->plan_id();
sslog.debug("[Stream #{}] SEND PREPARE_DONE_MESSAGE to {}", plan_id, id);
return ser::streaming_rpc_verbs::send_prepare_done_message(&manager().ms(), id, plan_id, this->dst_cpu_id).then([this] {
sslog.debug("[Stream #{}] GOT PREPARE_DONE_MESSAGE Reply from {}", this->plan_id(), this->peer);
}).handle_exception([id, plan_id] (auto ep) {
sslog.warn("[Stream #{}] Fail to send PREPARE_DONE_MESSAGE to {}, {}", plan_id, id, ep);
std::rethrow_exception(ep);
});
}).then([this] {
sslog.debug("[Stream #{}] Initiator starts to sent", this->plan_id());
this->start_streaming_files();
});
}
void stream_session::received_failed_complete_message() {
if (utils::get_local_injector().is_enabled("stream_session_ignore_failed_message")) {
sslog.info("[Stream #{}] Ignored failed complete message, peer={}", plan_id(), peer);
return;
}
sslog.info("[Stream #{}] Received failed complete message, peer={}", plan_id(), peer);
_received_failed_complete_message = true;
close_session(stream_session_state::FAILED);
}
void stream_session::abort() {
if (sslog.is_enabled(logging::log_level::debug)) {
sslog.debug("[Stream #{}] Aborted stream session={}, peer={}, is_initialized={}", plan_id(), fmt::ptr(this), peer, is_initialized());
} else {
sslog.info("[Stream #{}] Aborted stream session, peer={}, is_initialized={}", plan_id(), peer, is_initialized());
}
close_session(stream_session_state::FAILED);
}
void stream_session::on_error() {
sslog.warn("[Stream #{}] Streaming error occurred, peer={}", plan_id(), peer);
close_session(stream_session_state::FAILED);
}
// Only follower calls this function upon receiving of prepare_message from initiator
future<prepare_message> stream_session::prepare(std::vector<stream_request> requests, std::vector<stream_summary> summaries) {
auto plan_id = this->plan_id();
auto nr_requests = requests.size();
sslog.debug("[Stream #{}] prepare requests nr={}, summaries nr={}", plan_id, nr_requests, summaries.size());
// prepare tasks
set_state(stream_session_state::PREPARING);
for (auto& request : requests) {
// always flush on stream request
sslog.debug("[Stream #{}] prepare stream_request={}", plan_id, request);
add_transfer_ranges(std::move(request.keyspace), std::move(request.ranges), std::move(request.column_families));
co_await coroutine::maybe_yield();
}
for (auto& summary : summaries) {
sslog.debug("[Stream #{}] prepare stream_summary={}", plan_id, summary);
prepare_receiving(summary);
}
// Always send a prepare_message back to follower
prepare_message prepare;
if (nr_requests) {
for (auto& x: _transfers) {
auto& task = x.second;
prepare.summaries.emplace_back(task.get_summary());
}
}
prepare.dst_cpu_id = this_shard_id();
if (_stream_result) {
_stream_result->handle_session_prepared(shared_from_this());
}
co_return prepare;
}
void stream_session::follower_start_sent() {
sslog.debug("[Stream #{}] Follower start to sent", this->plan_id());
this->start_streaming_files();
}
session_info stream_session::make_session_info() {
std::vector<stream_summary> receiving_summaries;
for (auto& receiver : _receivers) {
receiving_summaries.emplace_back(receiver.second.get_summary());
}
std::vector<stream_summary> transfer_summaries;
for (auto& transfer : _transfers) {
transfer_summaries.emplace_back(transfer.second.get_summary());
}
return session_info(peer, std::move(receiving_summaries), std::move(transfer_summaries), _state);
}
void stream_session::receive_task_completed(table_id cf_id) {
_receivers.erase(cf_id);
sslog.debug("[Stream #{}] receive task_completed: cf_id={} done, stream_receive_task.size={} stream_transfer_task.size={}",
plan_id(), cf_id, _receivers.size(), _transfers.size());
maybe_completed();
}
void stream_session::transfer_task_completed(table_id cf_id) {
_transfers.erase(cf_id);
sslog.debug("[Stream #{}] transfer task_completed: cf_id={} done, stream_receive_task.size={} stream_transfer_task.size={}",
plan_id(), cf_id, _receivers.size(), _transfers.size());
maybe_completed();
}
void stream_session::transfer_task_completed_all() {
_transfers.clear();
sslog.debug("[Stream #{}] transfer task_completed: all done, stream_receive_task.size={} stream_transfer_task.size={}",
plan_id(), _receivers.size(), _transfers.size());
maybe_completed();
}
void stream_session::send_failed_complete_message() {
if (!is_initialized()) {
return;
}
auto plan_id = this->plan_id();
if (_received_failed_complete_message) {
sslog.debug("[Stream #{}] Skip sending failed message back to peer", plan_id);
return;
}
if (!_complete_sent) {
_complete_sent = true;
} else {
return;
}
sslog.debug("[Stream #{}] SEND COMPLETE_MESSAGE to {}", plan_id, peer);
auto session = shared_from_this();
bool failed = true;
//FIXME: discarded future.
(void)ser::streaming_rpc_verbs::send_complete_message(&manager().ms(), peer, plan_id, dst_cpu_id, failed).then([session, peer = this->peer, plan_id] {
sslog.debug("[Stream #{}] GOT COMPLETE_MESSAGE Reply from {}", plan_id, peer);
}).handle_exception([session, peer = this->peer, plan_id] (auto ep) {
sslog.debug("[Stream #{}] COMPLETE_MESSAGE for {} has failed: {}", plan_id, peer, ep);
});
}
bool stream_session::maybe_completed() {
bool completed = _receivers.empty() && _transfers.empty();
if (completed) {
sslog.debug("[Stream #{}] maybe_completed: {} -> COMPLETE: session={}, peer={}", plan_id(), _state, fmt::ptr(this), peer);
close_session(stream_session_state::COMPLETE);
}
return completed;
}
void stream_session::prepare_receiving(stream_summary& summary) {
if (summary.files > 0) {
// FIXME: handle when cf_id already exists
_receivers.emplace(summary.cf_id, stream_receive_task(shared_from_this(), summary.cf_id, summary.files, summary.total_size));
}
}
void stream_session::start_streaming_files() {
sslog.debug("[Stream #{}] {}: {} transfers to send", plan_id(), __func__, _transfers.size());
if (!_transfers.empty()) {
set_state(stream_session_state::STREAMING);
}
//FIXME: discarded future.
(void)do_for_each(_transfers.begin(), _transfers.end(), [this] (auto& item) {
sslog.debug("[Stream #{}] Start to send cf_id={}", this->plan_id(), item.first);
return item.second.execute();
}).then([this] {
this->transfer_task_completed_all();
}).handle_exception([this] (auto ep) {
sslog.warn("[Stream #{}] Failed to send: {}", this->plan_id(), ep);
this->on_error();
});
}
std::vector<replica::column_family*> stream_session::get_column_family_stores(const sstring& keyspace, const std::vector<sstring>& column_families) {
// if columnfamilies are not specified, we add all cf under the keyspace
std::vector<replica::column_family*> stores;
auto& db = manager().db();
if (column_families.empty()) {
db.get_tables_metadata().for_each_table([&] (table_id, lw_shared_ptr<replica::table> tp) {
replica::column_family& cf = *tp;
auto cf_name = cf.schema()->cf_name();
auto ks_name = cf.schema()->ks_name();
if (ks_name == keyspace) {
sslog.debug("Find ks={} cf={}", ks_name, cf_name);
stores.push_back(&cf);
}
});
} else {
// TODO: We can move this to database class and use shared_ptr<column_family> instead
for (auto& cf_name : column_families) {
try {
auto& x = db.find_column_family(keyspace, cf_name);
stores.push_back(&x);
} catch (replica::no_such_column_family&) {
sslog.warn("stream_session: {}.{} does not exist: {}\n", keyspace, cf_name, std::current_exception());
continue;
}
}
}
return stores;
}
void stream_session::add_transfer_ranges(sstring keyspace, dht::token_range_vector ranges, std::vector<sstring> column_families) {
auto cfs = get_column_family_stores(keyspace, column_families);
for (auto& cf : cfs) {
auto cf_id = cf->schema()->id();
auto it = _transfers.find(cf_id);
if (it == _transfers.end()) {
stream_transfer_task task(shared_from_this(), cf_id, ranges);
auto inserted = _transfers.emplace(cf_id, std::move(task)).second;
SCYLLA_ASSERT(inserted);
} else {
it->second.append_ranges(ranges);
}
}
}
future<> stream_session::receiving_failed(table_id cf_id)
{
return make_ready_future<>();
}
void stream_session::close_session(stream_session_state final_state) {
sslog.debug("[Stream #{}] close_session session={}, state={}, is_aborted={}", plan_id(), fmt::ptr(this), final_state, _is_aborted);
if (!_is_aborted) {
_is_aborted = true;
set_state(final_state);
if (final_state == stream_session_state::FAILED) {
for (auto& x : _transfers) {
stream_transfer_task& task = x.second;
sslog.debug("[Stream #{}] close_session session={}, state={}, abort stream_transfer_task cf_id={}", plan_id(), fmt::ptr(this), final_state, task.cf_id);
task.abort();
}
for (auto& x : _receivers) {
stream_receive_task& task = x.second;
sslog.debug("[Stream #{}] close_session session={}, state={}, abort stream_receive_task cf_id={}", plan_id(), fmt::ptr(this), final_state, task.cf_id);
//FIXME: discarded future.
(void)receiving_failed(x.first);
task.abort();
}
send_failed_complete_message();
}
// Note that we shouldn't block on this close because this method is called on the handler
// incoming thread (so we would deadlock).
//handler.close();
if (_stream_result) {
_stream_result->handle_session_complete(shared_from_this());
}
sslog.debug("[Stream #{}] close_session session={}, state={}", plan_id(), fmt::ptr(this), final_state);
}
}
void stream_session::start() {
if (_requests.empty() && _transfers.empty()) {
sslog.info("[Stream #{}] Session does not have any tasks.", plan_id());
close_session(stream_session_state::COMPLETE);
return;
}
sslog.debug("[Stream #{}] Starting streaming to {}", plan_id(), peer);
//FIXME: discarded future.
(void)on_initialization_complete().handle_exception([this] (auto ep) {
this->on_error();
});
}
bool stream_session::is_initialized() const {
return bool(_stream_result);
}
void stream_session::init(shared_ptr<stream_result_future> stream_result_) {
_stream_result = stream_result_;
}
streaming::plan_id stream_session::plan_id() const {
return _stream_result ? _stream_result->plan_id : streaming::plan_id::create_null_id();
}
sstring stream_session::description() const {
return _stream_result ? _stream_result->description : "";
}
future<> stream_session::update_progress() {
return manager().get_progress_on_all_shards(plan_id(), peer).then([this] (auto sbytes) {
auto bytes_sent = sbytes.bytes_sent;
if (bytes_sent > 0) {
auto tx = progress_info(this->peer, "txnofile", progress_info::direction::OUT, bytes_sent, bytes_sent);
_session_info.update_progress(std::move(tx));
}
auto bytes_received = sbytes.bytes_received;
if (bytes_received > 0) {
auto rx = progress_info(this->peer, "rxnofile", progress_info::direction::IN, bytes_received, bytes_received);
_session_info.update_progress(std::move(rx));
}
});
}
} // namespace streaming
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