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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "common/debug.h"
#include "common/errno.h"
#include "mgr/MetricCollector.h"
#include "mgr/OSDPerfMetricTypes.h"
#include "mgr/MDSPerfMetricTypes.h"
#define dout_context g_ceph_context
#define dout_subsys ceph_subsys_mgr
#undef dout_prefix
#define dout_prefix *_dout << "mgr.metric_collector " << __func__ << ": "
template <typename Query, typename Limit, typename Key, typename Report>
MetricCollector<Query, Limit, Key, Report>::MetricCollector(MetricListener &listener)
: listener(listener)
{
}
template <typename Query, typename Limit, typename Key, typename Report>
MetricQueryID MetricCollector<Query, Limit, Key, Report>::add_query(
const Query &query,
const std::optional<Limit> &limit) {
dout(20) << "query=" << query << ", limit=" << limit << dendl;
uint64_t query_id;
bool notify = false;
{
std::lock_guard locker(lock);
query_id = next_query_id++;
auto it = queries.find(query);
if (it == queries.end()) {
it = queries.emplace(query, std::map<MetricQueryID, OptionalLimit>{}).first;
notify = true;
} else if (is_limited(it->second)) {
notify = true;
}
it->second.emplace(query_id, limit);
counters.emplace(query_id, std::map<Key, PerformanceCounters>{});
}
dout(10) << query << " " << (limit ? stringify(*limit) : "unlimited")
<< " query_id=" << query_id << dendl;
if (notify) {
listener.handle_query_updated();
}
return query_id;
}
template <typename Query, typename Limit, typename Key, typename Report>
int MetricCollector<Query, Limit, Key, Report>::remove_query(MetricQueryID query_id) {
dout(20) << "query_id=" << query_id << dendl;
bool found = false;
bool notify = false;
{
std::lock_guard locker(lock);
for (auto it = queries.begin() ; it != queries.end();) {
auto iter = it->second.find(query_id);
if (iter == it->second.end()) {
++it;
continue;
}
it->second.erase(iter);
if (it->second.empty()) {
it = queries.erase(it);
notify = true;
} else if (is_limited(it->second)) {
++it;
notify = true;
}
found = true;
break;
}
counters.erase(query_id);
}
if (!found) {
dout(10) << query_id << " not found" << dendl;
return -ENOENT;
}
dout(10) << query_id << dendl;
if (notify) {
listener.handle_query_updated();
}
return 0;
}
template <typename Query, typename Limit, typename Key, typename Report>
void MetricCollector<Query, Limit, Key, Report>::remove_all_queries() {
dout(20) << dendl;
bool notify;
{
std::lock_guard locker(lock);
notify = !queries.empty();
queries.clear();
}
if (notify) {
listener.handle_query_updated();
}
}
template <typename Query, typename Limit, typename Key, typename Report>
void MetricCollector<Query, Limit, Key, Report>::reregister_queries() {
dout(20) << dendl;
listener.handle_query_updated();
}
template <typename Query, typename Limit, typename Key, typename Report>
int MetricCollector<Query, Limit, Key, Report>::get_counters_generic(
MetricQueryID query_id, std::map<Key, PerformanceCounters> *c) {
dout(20) << dendl;
ceph_assert(ceph_mutex_is_locked(lock));
auto it = counters.find(query_id);
if (it == counters.end()) {
dout(10) << "counters for " << query_id << " not found" << dendl;
return -ENOENT;
}
*c = std::move(it->second);
it->second.clear();
return 0;
}
template <typename Query, typename Limit, typename Key, typename Report>
void MetricCollector<Query, Limit, Key, Report>::process_reports_generic(
const std::map<Query, Report> &reports, UpdateCallback callback) {
ceph_assert(ceph_mutex_is_locked(lock));
if (reports.empty()) {
return;
}
for (auto& [query, report] : reports) {
dout(10) << "report for " << query << " query: "
<< report.group_packed_performance_counters.size() << " records"
<< dendl;
for (auto& [key, bl] : report.group_packed_performance_counters) {
auto bl_it = bl.cbegin();
for (auto& p : queries[query]) {
auto &key_counters = counters[p.first][key];
if (key_counters.empty()) {
key_counters.resize(query.performance_counter_descriptors.size(),
{0, 0});
}
}
auto desc_it = report.performance_counter_descriptors.begin();
for (size_t i = 0; i < query.performance_counter_descriptors.size(); i++) {
if (desc_it == report.performance_counter_descriptors.end()) {
break;
}
if (*desc_it != query.performance_counter_descriptors[i]) {
continue;
}
PerformanceCounter c;
desc_it->unpack_counter(bl_it, &c);
dout(20) << "counter " << key << " " << *desc_it << ": " << c << dendl;
for (auto& p : queries[query]) {
auto &key_counters = counters[p.first][key];
callback(&key_counters[i], c);
}
desc_it++;
}
}
}
}
template class
MetricCollector<OSDPerfMetricQuery, OSDPerfMetricLimit, OSDPerfMetricKey, OSDPerfMetricReport>;
template class
MetricCollector<MDSPerfMetricQuery, MDSPerfMetricLimit, MDSPerfMetricKey, MDSPerfMetrics>;
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