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'use strict';
/**
* Runs insert, update, delete and findAndModify commands against a sharded collection inside
* single-shard and cross-shard internal transactions using all client session configurations, and
* occasionally reshards the collection. Only runs on sharded clusters.
*
* @tags: [
* requires_fcv_60,
* requires_sharding,
* uses_transactions
* ]
*/
load('jstests/concurrency/fsm_libs/extend_workload.js');
load('jstests/concurrency/fsm_workloads/internal_transactions_sharded.js');
load('jstests/libs/fail_point_util.js');
var $config = extendWorkload($config, function($config, $super) {
// reshardingMinimumOperationDurationMillis is set to 30 seconds when there are stepdowns.
// So in order to limit the overall time for the test, we limit the number of resharding
// operations to maxReshardingExecutions.
const maxReshardingExecutions = TestData.runningWithShardStepdowns ? 4 : $config.iterations;
const customShardKeyFieldName = "customShardKey";
$config.data.shardKeys = [];
$config.data.currentShardKeyIndex = -1;
$config.data.reshardingCount = 0;
$config.data.getQueryForDocument = function getQueryForDocument(collection, doc) {
// The query for a write command against a sharded collection must contain the shard key.
const defaultShardKeyFieldName = this.shardKeyField[collection.getName()];
return {
_id: doc._id,
tid: this.tid,
[defaultShardKeyFieldName]: doc[defaultShardKeyFieldName],
[customShardKeyFieldName]: doc[customShardKeyFieldName]
};
};
$config.data.generateRandomDocument = function generateRandomDocument(collection) {
const defaultShardKeyFieldName = this.shardKeyField[collection.getName()];
return {
_id: UUID(),
tid: this.tid,
[defaultShardKeyFieldName]:
this.generateRandomInt(this.partition.lower, this.partition.upper - 1),
[customShardKeyFieldName]:
this.generateRandomInt(this.partition.lower, this.partition.upper - 1),
counter: 0
};
};
$config.data.isAcceptableRetryError = function isAcceptableRetryError(res) {
// This workload does in-place resharding so a retry that is sent
// reshardingMinimumOperationDurationMillis after resharding completes is expected to fail
// with IncompleteTransactionHistory.
return (res.code == ErrorCodes.IncompleteTransactionHistory) &&
res.errmsg.includes("Incomplete history detected for transaction");
};
$config.states.init = function init(db, collName, connCache) {
$super.states.init.apply(this, arguments);
this.shardKeys.push({[this.defaultShardKeyField]: 1});
this.shardKeys.push({[customShardKeyFieldName]: 1});
this.currentShardKeyIndex = 0;
};
$config.states.reshardCollection = function reshardCollection(db, collName, connCache) {
const collection = db.getCollection(collName);
const ns = collection.getFullName();
if (this.tid === 0 && (this.reshardingCount <= maxReshardingExecutions)) {
const newShardKeyIndex = (this.currentShardKeyIndex + 1) % this.shardKeys.length;
const newShardKey = this.shardKeys[newShardKeyIndex];
const reshardCollectionCmdObj = {
reshardCollection: ns,
key: newShardKey,
};
print(`Started resharding collection ${ns}: ${tojson({newShardKey})}`);
if (TestData.runningWithShardStepdowns) {
assert.commandWorkedOrFailedWithCode(db.adminCommand(reshardCollectionCmdObj),
[ErrorCodes.SnapshotUnavailable]);
} else {
assert.commandWorked(db.adminCommand(reshardCollectionCmdObj));
}
print(`Finished resharding collection ${ns}: ${tojson({newShardKey})}`);
// If resharding fails with SnapshotUnavailable, then this will be incorrect. But
// its fine since reshardCollection will succeed if the new shard key matches the
// existing one.
this.currentShardKeyIndex = newShardKeyIndex;
this.reshardingCount += 1;
db.printShardingStatus();
connCache.mongos.forEach(mongos => {
if (this.generateRandomBool()) {
// Without explicitly refreshing mongoses, retries of retryable write statements
// would always be routed to the donor shards. Non-deterministically refreshing
// enables us to have test coverage for retrying against both the donor and
// recipient shards.
assert.commandWorked(mongos.adminCommand({flushRouterConfig: 1}));
}
});
}
};
$config.transitions = {
init: {
internalTransactionForInsert: 0.25,
internalTransactionForUpdate: 0.25,
internalTransactionForDelete: 0.25,
internalTransactionForFindAndModify: 0.25,
},
reshardCollection: {
internalTransactionForInsert: 0.2,
internalTransactionForUpdate: 0.2,
internalTransactionForDelete: 0.2,
internalTransactionForFindAndModify: 0.2,
verifyDocuments: 0.2
},
internalTransactionForInsert: {
reshardCollection: 0.2,
internalTransactionForInsert: 0.15,
internalTransactionForUpdate: 0.15,
internalTransactionForDelete: 0.15,
internalTransactionForFindAndModify: 0.15,
verifyDocuments: 0.2
},
internalTransactionForUpdate: {
reshardCollection: 0.2,
internalTransactionForInsert: 0.15,
internalTransactionForUpdate: 0.15,
internalTransactionForDelete: 0.15,
internalTransactionForFindAndModify: 0.15,
verifyDocuments: 0.2
},
internalTransactionForDelete: {
reshardCollection: 0.2,
internalTransactionForInsert: 0.15,
internalTransactionForUpdate: 0.15,
internalTransactionForDelete: 0.15,
internalTransactionForFindAndModify: 0.15,
verifyDocuments: 0.2
},
internalTransactionForFindAndModify: {
reshardCollection: 0.2,
internalTransactionForInsert: 0.15,
internalTransactionForUpdate: 0.15,
internalTransactionForDelete: 0.15,
internalTransactionForFindAndModify: 0.15,
verifyDocuments: 0.2
},
verifyDocuments: {
reshardCollection: 0.2,
internalTransactionForInsert: 0.15,
internalTransactionForUpdate: 0.15,
internalTransactionForDelete: 0.15,
internalTransactionForFindAndModify: 0.15,
verifyDocuments: 0.2
}
};
return $config;
});
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