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/**
* Utilities for testing tenant migrations.
*/
var TenantMigrationUtil = (function() {
// An object that mirrors the access states for the TenantMigrationAccessBlocker.
const accessState = {kAllow: 0, kBlockingWrites: 1, kBlockingReadsAndWrites: 2, kReject: 3};
/**
* Runs the donorStartMigration command with the given migration options every 'intervalMS'
* until the migration commits or aborts, or until the command fails. Returns the last command
* response.
*/
function startMigration(donorPrimaryHost, migrationOpts, intervalMS = 100) {
const cmdObj = {
donorStartMigration: 1,
migrationId: UUID(migrationOpts.migrationIdString),
recipientConnectionString: migrationOpts.recipientConnString,
tenantId: migrationOpts.tenantId,
readPreference: migrationOpts.readPreference
};
const donorPrimary = new Mongo(donorPrimaryHost);
while (true) {
const res = donorPrimary.adminCommand(cmdObj);
if (!res.ok || res.state == "committed" || res.state == "aborted") {
return res;
}
sleep(intervalMS);
}
}
/**
* Runs the donorForgetMigration command with the given migrationId and returns the response.
*/
function forgetMigration(donorPrimaryHost, migrationIdString) {
const donorPrimary = new Mongo(donorPrimaryHost);
return donorPrimary.adminCommand(
{donorForgetMigration: 1, migrationId: UUID(migrationIdString)});
}
/**
* Runs the donorStartMigration command with the given migration options every 'intervalMS'
* until the migration commits or aborts, or until the command fails with error other than
* NotPrimary or network errors. Returns the last command response.
*/
function startMigrationRetryOnRetryableErrors(donorRstArgs, migrationOpts, intervalMS = 100) {
const cmdObj = {
donorStartMigration: 1,
migrationId: UUID(migrationOpts.migrationIdString),
recipientConnectionString: migrationOpts.recipientConnString,
tenantId: migrationOpts.tenantId,
readPreference: migrationOpts.readPreference
};
const donorRst = new ReplSetTest({rstArgs: donorRstArgs});
let donorPrimary = donorRst.getPrimary();
while (true) {
let res;
try {
res = donorPrimary.adminCommand(cmdObj);
} catch (e) {
if (isNetworkError(e)) {
jsTest.log(`Ignoring network error ${tojson(e)} for command ${tojson(cmdObj)}`);
continue;
}
throw e;
}
if (!res.ok) {
if (!ErrorCodes.isNotPrimaryError(res.code)) {
return res;
}
donorPrimary = donorRst.getPrimary();
} else if (res.state == "committed" || res.state == "aborted") {
return res;
}
sleep(intervalMS);
}
}
/**
* Runs the donorForgetMigration command with the given migrationId until the command succeeds
* or fails with error other than NotPrimary or network errors. Returns the last command
* response.
*/
function forgetMigrationRetryOnRetryableErrors(donorRstArgs, migrationIdString) {
const cmdObj = {donorForgetMigration: 1, migrationId: UUID(migrationIdString)};
const donorRst = new ReplSetTest({rstArgs: donorRstArgs});
let donorPrimary = donorRst.getPrimary();
while (true) {
let res;
try {
res = donorPrimary.adminCommand(cmdObj);
} catch (e) {
if (isNetworkError(e)) {
jsTest.log(`Ignoring network error ${tojson(e)} for command ${tojson(cmdObj)}`);
continue;
}
throw e;
}
if (res.ok || !ErrorCodes.isNotPrimaryError(res.code)) {
return res;
}
donorPrimary = donorRst.getPrimary();
}
}
/**
* Returns true if the durable and in-memory state for the migration 'migrationId' and
* 'tenantId' is in state "committed", and false otherwise.
*/
function isMigrationCommitted(node, migrationId, tenantId) {
const configDonorsColl = node.getCollection("config.tenantMigrationDonors");
if (configDonorsColl.findOne({_id: migrationId}).state != "committed") {
return false;
}
const mtabs = node.adminCommand({serverStatus: 1}).tenantMigrationAccessBlocker;
return mtabs[tenantId].access === TenantMigrationUtil.accessState.kReject;
}
/**
* Returns true if the durable and in-memory state for the migration 'migrationId' and
* 'tenantId' is in state "aborted", and false otherwise.
*/
function isMigrationAborted(node, migrationId, tenantId) {
const configDonorsColl = node.getCollection("config.tenantMigrationDonors");
if (configDonorsColl.findOne({_id: migrationId}).state != "aborted") {
return false;
}
const mtabs = node.adminCommand({serverStatus: 1}).tenantMigrationAccessBlocker;
return mtabs[tenantId].access === TenantMigrationUtil.accessState.kAllow;
}
/**
* Asserts that the migration 'migrationId' and 'tenantId' is in state "committed" on all the
* given nodes.
*/
function assertMigrationCommitted(nodes, migrationId, tenantId) {
nodes.forEach(node => {
assert(isMigrationCommitted(node, migrationId, tenantId));
});
}
/**
* Asserts that the migration 'migrationId' and 'tenantId' eventually goes to state "committed"
* on all the given nodes.
*/
function waitForMigrationToCommit(nodes, migrationId, tenantId) {
nodes.forEach(node => {
assert.soon(() => isMigrationCommitted(node, migrationId, tenantId));
});
}
/**
* Asserts that the migration 'migrationId' and 'tenantId' eventually goes to state "aborted"
* on all the given nodes.
*/
function waitForMigrationToAbort(nodes, migrationId, tenantId) {
nodes.forEach(node => {
assert.soon(() => isMigrationAborted(node, migrationId, tenantId));
});
}
/**
* Asserts that durable and in-memory state for the migration 'migrationId' and 'tenantId' is
* eventually deleted from the given nodes.
*/
function waitForMigrationGarbageCollection(nodes, migrationId, tenantId) {
nodes.forEach(node => {
const configDonorsColl = node.getCollection("config.tenantMigrationDonors");
assert.soon(() => 0 === configDonorsColl.count({_id: migrationId}));
assert.soon(() => 0 ===
node.adminCommand({serverStatus: 1})
.repl.primaryOnlyServices.TenantMigrationDonorService);
let mtabs;
assert.soon(() => {
mtabs = node.adminCommand({serverStatus: 1}).tenantMigrationAccessBlocker;
return !mtabs || !mtabs[tenantId];
}, tojson(mtabs));
});
}
/**
* Returns the TenantMigrationAccessBlocker associated with given the tenantId on the
* node.
*/
function getTenantMigrationAccessBlocker(node, tenantId) {
return node.adminCommand({serverStatus: 1}).tenantMigrationAccessBlocker[tenantId];
}
/**
* Crafts a tenant database name, given the tenantId.
*/
function tenantDB(tenantId, dbName) {
return `${tenantId}_${dbName}`;
}
/**
* Crafts a database name that does not belong to the tenant, given the tenantId.
*/
function nonTenantDB(tenantId, dbName) {
return `non_${tenantId}_${dbName}`;
}
return {
accessState,
startMigration,
forgetMigration,
startMigrationRetryOnRetryableErrors,
forgetMigrationRetryOnRetryableErrors,
assertMigrationCommitted,
waitForMigrationToCommit,
waitForMigrationToAbort,
waitForMigrationGarbageCollection,
getTenantMigrationAccessBlocker,
tenantDB,
nonTenantDB,
};
})();
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