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/**
* Copyright (C) 2016 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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/platform/basic.h"
#include "mongo/s/config_server_client.h"
#include "mongo/client/read_preference.h"
#include "mongo/s/client/shard_registry.h"
#include "mongo/s/grid.h"
#include "mongo/s/request_types/balance_chunk_request_type.h"
namespace mongo {
namespace configsvr_client {
namespace {
const ReadPreferenceSetting kPrimaryOnlyReadPreference{ReadPreference::PrimaryOnly};
} // namespace
Status moveChunk(OperationContext* txn,
const ChunkType& chunk,
const ShardId& newShardId,
int64_t maxChunkSizeBytes,
const MigrationSecondaryThrottleOptions& secondaryThrottle,
bool waitForDelete) {
auto shardRegistry = Grid::get(txn)->shardRegistry();
auto shard = shardRegistry->getConfigShard();
auto cmdResponseStatus = shard->runCommandWithFixedRetryAttempts(
txn,
kPrimaryOnlyReadPreference,
"admin",
BalanceChunkRequest::serializeToMoveCommandForConfig(
chunk, newShardId, maxChunkSizeBytes, secondaryThrottle, waitForDelete),
Shard::RetryPolicy::kIdempotent);
if (!cmdResponseStatus.isOK()) {
return cmdResponseStatus.getStatus();
}
return cmdResponseStatus.getValue().commandStatus;
}
Status rebalanceChunk(OperationContext* txn, const ChunkType& chunk) {
auto shardRegistry = Grid::get(txn)->shardRegistry();
auto shard = shardRegistry->getConfigShard();
auto cmdResponseStatus = shard->runCommandWithFixedRetryAttempts(
txn,
kPrimaryOnlyReadPreference,
"admin",
BalanceChunkRequest::serializeToRebalanceCommandForConfig(chunk),
Shard::RetryPolicy::kNotIdempotent);
if (!cmdResponseStatus.isOK()) {
return cmdResponseStatus.getStatus();
}
return cmdResponseStatus.getValue().commandStatus;
}
} // namespace configsvr_client
} // namespace mongo
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