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/**
* Copyright (C) 2018-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_metric.h"
#include "mongo/s/grid.h"
#include "mongo/s/query/cluster_cursor_manager.h"
namespace mongo {
namespace {
//
// ServerStatus metric cursor counts.
//
class ClusterCursorStats final : public ServerStatusMetric {
public:
ClusterCursorStats() : ServerStatusMetric("cursor") {}
void appendAtLeaf(BSONObjBuilder& b) const final {
auto grid = Grid::get(getGlobalServiceContext());
BSONObjBuilder cursorBob(b.subobjStart(_leafName));
cursorBob.append("timedOut",
static_cast<long long>(grid->getCursorManager()->cursorsTimedOut()));
{
BSONObjBuilder openBob(cursorBob.subobjStart("open"));
auto stats = grid->getCursorManager()->stats();
openBob.append("multiTarget", static_cast<long long>(stats.cursorsMultiTarget));
openBob.append("singleTarget", static_cast<long long>(stats.cursorsSingleTarget));
openBob.append("queuedData", static_cast<long long>(stats.cursorsQueuedData));
openBob.append("pinned", static_cast<long long>(stats.cursorsPinned));
openBob.append(
"total",
static_cast<long long>(stats.cursorsMultiTarget + stats.cursorsSingleTarget));
openBob.doneFast();
}
cursorBob.done();
}
};
ClusterCursorStats& clusterCursorStats = addMetricToTree(std::make_unique<ClusterCursorStats>());
} // namespace
} // namespace mongo
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