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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "garbagecollectionoperation.h"
#include <vespa/storage/distributor/idealstatemanager.h>
#include <vespa/storage/distributor/idealstatemetricsset.h>
#include <vespa/storage/distributor/top_level_distributor.h>
#include <vespa/storage/distributor/distributor_bucket_space.h>
#include <vespa/storageapi/message/removelocation.h>
#include <vespa/log/log.h>
LOG_SETUP(".distributor.operation.idealstate.remove");
namespace storage::distributor {
GarbageCollectionOperation::GarbageCollectionOperation(const ClusterContext& cluster_ctx, const BucketAndNodes& nodes)
: IdealStateOperation(nodes),
_tracker(cluster_ctx),
_replica_info(),
_max_documents_removed(0)
{}
GarbageCollectionOperation::~GarbageCollectionOperation() = default;
void GarbageCollectionOperation::onStart(DistributorStripeMessageSender& sender) {
BucketDatabase::Entry entry = _bucketSpace->getBucketDatabase().get(getBucketId());
std::vector<uint16_t> nodes = entry->getNodes();
for (auto node : nodes) {
auto command = std::make_shared<api::RemoveLocationCommand>(
_manager->operation_context().distributor_config().getGarbageCollectionSelection(),
getBucket());
command->setPriority(_priority);
_tracker.queueCommand(command, node);
}
_tracker.flushQueue(sender);
if (_tracker.finished()) {
done();
}
}
void
GarbageCollectionOperation::onReceive(DistributorStripeMessageSender&,
const std::shared_ptr<api::StorageReply>& reply)
{
auto* rep = dynamic_cast<api::RemoveLocationReply*>(reply.get());
assert(rep != nullptr);
uint16_t node = _tracker.handleReply(*rep);
if (!rep->getResult().failed()) {
_replica_info.emplace_back(_manager->operation_context().generate_unique_timestamp(),
node, rep->getBucketInfo());
_max_documents_removed = std::max(_max_documents_removed, rep->documents_removed());
} else {
_ok = false;
}
if (_tracker.finished()) {
if (_ok) {
merge_received_bucket_info_into_db();
}
update_gc_metrics();
done();
}
}
void GarbageCollectionOperation::merge_received_bucket_info_into_db() {
// TODO avoid two separate DB ops for this. Current API currently does not make this elegant.
_manager->operation_context().update_bucket_database(getBucket(), _replica_info);
BucketDatabase::Entry dbentry = _bucketSpace->getBucketDatabase().get(getBucketId());
if (dbentry.valid()) {
dbentry->setLastGarbageCollectionTime(
_manager->node_context().clock().getTimeInSeconds().getTime());
_bucketSpace->getBucketDatabase().update(dbentry);
}
}
void GarbageCollectionOperation::update_gc_metrics() {
auto metric_base = _manager->getMetrics().operations[IdealStateOperation::GARBAGE_COLLECTION];
auto gc_metrics = std::dynamic_pointer_cast<GcMetricSet>(metric_base);
assert(gc_metrics);
gc_metrics->documents_removed.inc(_max_documents_removed);
}
bool
GarbageCollectionOperation::shouldBlockThisOperation(uint32_t, uint8_t) const {
return true;
}
}
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