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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "metrics_engine.h"
#include "attribute_metrics.h"
#include "documentdb_tagged_metrics.h"
#include "content_proton_metrics.h"
#include <vespa/metrics/jsonwriter.h>
#include <vespa/metrics/metricmanager.h>
#include <vespa/log/log.h>
LOG_SETUP(".proton.server.metricsengine");
namespace proton {
MetricsEngine::MetricsEngine()
: _root(std::make_unique<ContentProtonMetrics>()),
_manager(std::make_unique<metrics::MetricManager>()),
_metrics_producer(*_manager)
{ }
MetricsEngine::~MetricsEngine() = default;
void
MetricsEngine::start(const config::ConfigUri &)
{
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
_manager->registerMetric(guard, *_root);
}
_manager->snapshotUnsetMetrics(true);
// Starting the metric manager worker thread (MetricManager::init()) is not done here, as the service
// layer code has not had the opportunity to create its metrics yet. Deferred to service layer init code.
}
void
MetricsEngine::addMetricsHook(metrics::UpdateHook &hook)
{
_manager->addMetricUpdateHook(hook);
}
void
MetricsEngine::removeMetricsHook(metrics::UpdateHook &hook)
{
_manager->removeMetricUpdateHook(hook);
}
void
MetricsEngine::addExternalMetrics(metrics::Metric &child)
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
_root->registerMetric(child);
}
void
MetricsEngine::removeExternalMetrics(metrics::Metric &child)
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
_root->unregisterMetric(child);
}
void
MetricsEngine::addDocumentDBMetrics(DocumentDBTaggedMetrics &child)
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
_root->registerMetric(child);
}
void
MetricsEngine::removeDocumentDBMetrics(DocumentDBTaggedMetrics &child)
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
_root->unregisterMetric(child);
}
namespace {
void
doAddAttribute(AttributeMetrics &attributes, const std::string &attrName)
{
auto entry = attributes.add(attrName);
if (entry) {
attributes.parent()->registerMetric(*entry);
} else {
LOG(warning, "Could not add metrics for attribute '%s', already existing", attrName.c_str());
}
}
void
doRemoveAttribute(AttributeMetrics &attributes, const std::string &attrName)
{
auto entry = attributes.remove(attrName);
if (entry) {
attributes.parent()->unregisterMetric(*entry);
} else {
LOG(warning, "Could not remove metrics for attribute '%s', not found", attrName.c_str());
}
}
void
doCleanAttributes(AttributeMetrics &attributes)
{
auto entries = attributes.release();
for (const auto &entry : entries) {
attributes.parent()->unregisterMetric(*entry);
}
}
}
void
MetricsEngine::addAttribute(AttributeMetrics &subAttributes,
const std::string &name)
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
doAddAttribute(subAttributes, name);
}
void
MetricsEngine::removeAttribute(AttributeMetrics &subAttributes,
const std::string &name)
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
doRemoveAttribute(subAttributes, name);
}
void
MetricsEngine::cleanAttributes(AttributeMetrics &subAttributes)
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
doCleanAttributes(subAttributes);
}
namespace {
template <typename MatchingMetricsType>
void
addRankProfileTo(MatchingMetricsType &matchingMetrics, const vespalib::string &name, size_t numDocIdPartitions)
{
auto &entry = matchingMetrics.rank_profiles[name];
if (entry.get()) {
LOG(warning, "Two rank profiles have the same name: %s", name.c_str());
} else {
matchingMetrics.rank_profiles[name].reset(
new typename MatchingMetricsType::RankProfileMetrics(name, numDocIdPartitions, &matchingMetrics));
}
}
template <typename MatchingMetricsType>
void
cleanRankProfilesIn(MatchingMetricsType &matchingMetrics)
{
typename MatchingMetricsType::RankProfileMap rankMetrics;
matchingMetrics.rank_profiles.swap(rankMetrics);
for (const auto &metric : rankMetrics) {
matchingMetrics.unregisterMetric(*metric.second);
}
}
}
void
MetricsEngine::addRankProfile(DocumentDBTaggedMetrics &owner, const std::string &name, size_t numDocIdPartitions)
{
metrics::MetricLockGuard guard(_manager->getMetricLock());
size_t adjustedNumDocIdPartitions = std::min(numDocIdPartitions, owner.maxNumThreads);
addRankProfileTo(owner.matching, name, adjustedNumDocIdPartitions);
}
void
MetricsEngine::cleanRankProfiles(DocumentDBTaggedMetrics &owner) {
metrics::MetricLockGuard guard(_manager->getMetricLock());
cleanRankProfilesIn(owner.matching);
}
void
MetricsEngine::stop()
{
_manager->stop();
}
}
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