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/**
* Copyright (C) 2020-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/commands/server_status.h"
#include "mongo/db/timeseries/bucket_catalog/bucket_catalog.h"
namespace mongo::timeseries::bucket_catalog {
namespace {
class BucketCatalogServerStatus : public ServerStatusSection {
struct BucketCounts {
BucketCounts& operator+=(const BucketCounts& other) {
if (&other != this) {
all += other.all;
open += other.open;
idle += other.idle;
}
return *this;
}
std::size_t all = 0;
std::size_t open = 0;
std::size_t idle = 0;
};
BucketCounts _getBucketCounts(const BucketCatalog& catalog) const {
BucketCounts sum;
for (auto const& stripe : catalog.stripes) {
stdx::lock_guard stripeLock{stripe.mutex};
sum += {stripe.openBucketsById.size(),
stripe.openBucketsByKey.size(),
stripe.idleBuckets.size()};
}
return sum;
}
public:
BucketCatalogServerStatus() : ServerStatusSection("bucketCatalog") {}
bool includeByDefault() const override {
return true;
}
BSONObj generateSection(OperationContext* opCtx, const BSONElement&) const override {
const auto& bucketCatalog = BucketCatalog::get(opCtx);
{
stdx::lock_guard catalogLock{bucketCatalog.mutex};
if (bucketCatalog.executionStats.empty()) {
return {};
}
}
auto counts = _getBucketCounts(bucketCatalog);
auto numActive = bucketCatalog.numberOfActiveBuckets.load();
BSONObjBuilder builder;
builder.appendNumber("numBuckets", static_cast<long long>(numActive));
builder.appendNumber("numOpenBuckets", static_cast<long long>(counts.open));
builder.appendNumber("numIdleBuckets", static_cast<long long>(counts.idle));
builder.appendNumber("numArchivedBuckets", static_cast<long long>(numActive - counts.open));
builder.appendNumber("memoryUsage",
static_cast<long long>(bucketCatalog.memoryUsage.load()));
// Append the global execution stats for all namespaces.
appendExecutionStatsToBuilder(bucketCatalog.globalExecutionStats, builder);
// Append the global state management stats for all namespaces.
appendStats(bucketCatalog.bucketStateRegistry, builder);
return builder.obj();
}
} bucketCatalogServerStatus;
} // namespace
} // namespace mongo::timeseries::bucket_catalog
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