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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "statechecker.h"
#include "distributor_bucket_space.h"
#include "distributor_stripe_component.h"
#include <vespa/vdslib/distribution/distribution.h>
#include <vespa/vdslib/state/clusterstate.h>
#include <sstream>
#include <vespa/log/log.h>
LOG_SETUP(".distributor.statechecker");
namespace storage::distributor {
namespace {
class StoredResultImpl
: public StateChecker::ResultImpl
{
mutable IdealStateOperation::UP _operation;
MaintenancePriority _priority;
public:
StoredResultImpl(const StoredResultImpl &) = delete;
StoredResultImpl & operator = (const StoredResultImpl &) = delete;
StoredResultImpl()
: _operation(),
_priority(MaintenancePriority::NO_MAINTENANCE_NEEDED)
{}
StoredResultImpl(IdealStateOperation::UP operation,
MaintenancePriority priority)
: _operation(std::move(operation)),
_priority(priority)
{}
IdealStateOperation::UP createOperation() override {
return std::move(_operation);
}
MaintenancePriority getPriority() const override {
return _priority;
}
MaintenanceOperation::Type getType() const override {
assert(_operation.get());
return _operation->getType();
}
};
}
StateChecker::Result
StateChecker::Result::noMaintenanceNeeded()
{
return Result({});
}
StateChecker::Result
StateChecker::Result::createStoredResult(IdealStateOperation::UP operation, MaintenancePriority::Priority priority)
{
return Result(std::make_unique<StoredResultImpl>(std::move(operation), MaintenancePriority(priority)));
}
StateChecker::Context::Context(const DistributorNodeContext& node_ctx_in,
const DistributorStripeOperationContext& op_ctx_in,
const DistributorBucketSpace& distributorBucketSpace,
NodeMaintenanceStatsTracker& statsTracker,
const document::Bucket& bucket_)
: bucket(bucket_),
siblingBucket(op_ctx_in.get_sibling(bucket.getBucketId())),
systemState(distributorBucketSpace.getClusterState()),
pending_cluster_state(op_ctx_in.pending_cluster_state_or_null(bucket_.getBucketSpace())),
distributorConfig(op_ctx_in.distributor_config()),
distribution(distributorBucketSpace.getDistribution()),
gcTimeCalculator(op_ctx_in.bucket_id_hasher(), distributorConfig.getGarbageCollectionInterval()),
idealStateBundle(distributorBucketSpace.get_ideal_service_layer_nodes_bundle(bucket.getBucketId())),
node_ctx(node_ctx_in),
op_ctx(op_ctx_in),
db(distributorBucketSpace.getBucketDatabase()),
stats(statsTracker),
merges_inhibited_in_bucket_space(distributorBucketSpace.merges_inhibited()),
_entry()
{ }
StateChecker::Context::~Context() = default;
void
StateChecker::Context::fillParentAndChildBuckets()
{
db.getAll(getBucketId(), entries);
if (entries.empty()) {
LOG(spam, "Did not find bucket %s in bucket database", bucket.toString().c_str());
}
}
void
StateChecker::Context::fillSiblingBucket()
{
siblingEntry = db.get(siblingBucket);
}
const BucketDatabase::Entry*
StateChecker::Context::getEntryForPrimaryBucket() const
{
for (auto & e : entries) {
if (e.getBucketId() == getBucketId() && ! e->getNodes().empty()) {
return &e;
}
}
return nullptr;
}
std::string
StateChecker::Context::toString() const
{
std::ostringstream ss;
ss << "entries: {";
for (uint32_t i = 0; i < entries.size(); ++i) {
if (i != 0) {
ss << ", ";
}
ss << entries[i].getBucketId() << ": [" << entries[i]->toString() << "]";
}
ss << "}, state: " << systemState;
return ss.str();
}
}
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