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/**
* Tests findAndModify returns the expected tenant migration error or succeeds when sent through
* mongos after a tenant migration commits or aborts.
* @tags: [requires_fcv_52, serverless]
*/
(function() {
"use strict";
load("jstests/libs/fail_point_util.js");
load("jstests/serverless/serverlesstest.js");
load('jstests/concurrency/fsm_libs/worker_thread.js');
function donorStartMigrationCmd(tenantID, realConnUrl) {
return {
donorStartMigration: 1,
tenantId: tenantID.str,
migrationId: UUID(),
recipientConnectionString: realConnUrl,
readPreference: {mode: "primary"}
};
}
const kCollName = 'foo';
let findAndModifyCmd = {findAndModify: kCollName, update: {$set: {y: 1}}, upsert: true};
let st = new ServerlessTest();
let adminDB = st.rs0.getPrimary().getDB('admin');
(() => {
jsTest.log("Starting test calling findAndModify after the migration has committed.");
const tenantID = ObjectId();
const kDbName = tenantID.str + "_test";
let db = st.q0.getDB(kDbName);
assert.commandWorked(st.q0.adminCommand({enableSharding: kDbName}));
st.ensurePrimaryShard(kDbName, st.shard0.shardName);
let cmdObj = donorStartMigrationCmd(tenantID, st.rs1.getURL());
assert.soon(function() {
let res = assert.commandWorked(adminDB.runCommand(cmdObj));
return res['state'] == "committed";
}, "migration not in committed state", 1 * 10000, 1 * 1000);
assert.commandFailedWithCode(db.runCommand(findAndModifyCmd),
ErrorCodes.TenantMigrationCommitted);
})();
(() => {
jsTest.log("Starting test calling findAndModify after the migration has aborted.");
const tenantID = ObjectId();
const kDbName = tenantID.str + "_test";
assert.commandWorked(st.q0.adminCommand({enableSharding: kDbName}));
st.ensurePrimaryShard(kDbName, st.shard0.shardName);
configureFailPoint(adminDB, "abortTenantMigrationBeforeLeavingBlockingState");
let cmdObj = donorStartMigrationCmd(tenantID, st.rs1.getURL());
assert.soon(function() {
let res = assert.commandWorked(adminDB.runCommand(cmdObj));
return res['state'] == "aborted";
}, "migration not in aborted state", 1 * 10000, 1 * 1000);
assert.commandWorked(st.q0.getDB(kDbName).runCommand(findAndModifyCmd));
})();
(() => {
jsTest.log("Starting test calling findAndModify during migration blocking state then aborts.");
const tenantID = ObjectId();
const kDbName = tenantID.str + "_test";
assert.commandWorked(st.q0.adminCommand({enableSharding: kDbName}));
st.ensurePrimaryShard(kDbName, st.shard0.shardName);
let blockingFp = configureFailPoint(adminDB, "pauseTenantMigrationBeforeLeavingBlockingState");
let abortFailPoint =
configureFailPoint(adminDB, "abortTenantMigrationBeforeLeavingBlockingState");
let cmdObj = donorStartMigrationCmd(tenantID, st.rs1.getURL());
assert.commandWorked(adminDB.runCommand(cmdObj));
blockingFp.wait();
let findAndModifyThread = new Thread((mongosConnString, dbName, findAndModifyCmd) => {
let mongos = new Mongo(mongosConnString);
assert.commandWorked(mongos.getDB(dbName).runCommand(findAndModifyCmd));
}, st.q0.host, kDbName, findAndModifyCmd);
findAndModifyThread.start();
assert.soon(function() {
let mtab = st.rs0.getPrimary()
.getDB('admin')
.adminCommand({serverStatus: 1})
.tenantMigrationAccessBlocker[tenantID.str]
.donor;
return mtab.numBlockedWrites > 0;
}, "no blocked writes found", 1 * 10000, 1 * 1000);
blockingFp.off();
abortFailPoint.off();
assert.soon(function() {
let res = assert.commandWorked(adminDB.runCommand(cmdObj));
return res['state'] == "aborted";
}, "migration not in aborted state", 1 * 10000, 1 * 1000);
findAndModifyThread.join();
})();
(() => {
jsTest.log(
"Starting test findAndModify transaction during migration blocking state then aborts.");
const tenantID = ObjectId();
const kDbName = tenantID.str + "_test";
let db = st.q0.getDB(kDbName);
assert.commandWorked(db.foo.insert({'mydata': 1}));
assert.commandWorked(st.q0.adminCommand({enableSharding: kDbName}));
st.ensurePrimaryShard(kDbName, st.shard0.shardName);
let blockingFp = configureFailPoint(adminDB, "pauseTenantMigrationBeforeLeavingBlockingState");
let abortFailPoint =
configureFailPoint(adminDB, "abortTenantMigrationBeforeLeavingBlockingState");
let cmdObj = donorStartMigrationCmd(tenantID, st.rs1.getURL());
assert.commandWorked(adminDB.runCommand(cmdObj));
blockingFp.wait();
let transactionThread = new Thread((mongosConnString, dbName) => {
let mongos = new Mongo(mongosConnString);
let session = mongos.startSession();
let sessionDB = session.getDatabase(dbName);
session.startTransaction();
sessionDB.foo.findAndModify(
{query: {'mydata': 1}, update: {$set: {'mydata': 2}}, new: true});
let res = session.commitTransaction_forTesting();
let assertErrorResponse = (res, expectedError, expectedErrLabel) => {
jsTest.log("Going to check the response " + tojson(res));
assert.commandFailedWithCode(res, expectedError, tojson(res));
assert(res["errorLabels"] != null, "Error labels are absent from " + tojson(res));
const expectedErrorLabels = [expectedErrLabel];
assert.sameMembers(res["errorLabels"],
expectedErrorLabels,
"Error labels " + tojson(res["errorLabels"]) +
" are different from expected " + expectedErrorLabels);
};
assertErrorResponse(res, ErrorCodes.TenantMigrationAborted, 'TransientTransactionError');
jsTest.log("Going to retry commit transaction after tenant migration aborted.");
res = session.commitTransaction_forTesting();
assertErrorResponse(res, ErrorCodes.NoSuchTransaction, 'TransientTransactionError');
}, st.q0.host, kDbName);
transactionThread.start();
assert.soon(function() {
let mtab = st.rs0.getPrimary()
.getDB('admin')
.adminCommand({serverStatus: 1})
.tenantMigrationAccessBlocker[tenantID.str]
.donor;
return mtab.numBlockedWrites > 0;
}, "no blocked writes found", 1 * 10000, 1 * 1000);
blockingFp.off();
transactionThread.join();
abortFailPoint.off();
})();
st.stop();
})();
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