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/**
* Tests that writes that are blocked during a shard split will still be able to find out
* split outcome even if the split's in memory state has been garbage collected.
*
* Shard splits are not expected to be run on servers with ephemeralForTest.
*
* @tags: [
* incompatible_with_eft,
* incompatible_with_macos,
* incompatible_with_windows_tls,
* requires_majority_read_concern,
* requires_persistence,
* serverless,
* requires_fcv_62
* ]
*/
import {assertMigrationState, ShardSplitTest} from "jstests/serverless/libs/shard_split_test.js";
load("jstests/libs/fail_point_util.js");
const kGarbageCollectionParams = {
// Set the delay before a donor state doc is garbage collected to be short to speed up the test.
shardSplitGarbageCollectionDelayMS: 30 * 1000,
// Set the TTL monitor to run at a smaller interval to speed up the test.
ttlMonitorSleepSecs: 1,
};
const kCollName = "testColl";
const kTenantDefinedDbName = "0";
function insertDocument(primaryHost, dbName, collName) {
jsTestLog("Calling the method insertDocument");
const primary = new Mongo(primaryHost);
let primaryDB = primary.getDB(dbName);
let res = primaryDB.runCommand({insert: collName, documents: [{x: 1}]});
return res;
}
(() => {
jsTestLog(
"Testing blocked writes can see shard split outcome for a split that has been committed and garbage collected.");
const test =
new ShardSplitTest({nodeOptions: Object.assign({setParameter: kGarbageCollectionParams})});
test.addRecipientNodes();
const tenantIds = [ObjectId() /*tenantA*/];
const operation = test.createSplitOperation(tenantIds);
const dbName = test.tenantDB(tenantIds[0].str, kTenantDefinedDbName);
const primary = test.donor.getPrimary();
const primaryDB = primary.getDB(dbName);
const writeFp = configureFailPoint(primaryDB, "hangWriteBeforeWaitingForMigrationDecision");
const writeThread = new Thread(insertDocument, primary.host, dbName, kCollName);
assert.commandWorked(primaryDB.runCommand({create: kCollName}));
const blockFp = configureFailPoint(primaryDB, "pauseShardSplitAfterBlocking");
const commitThread = operation.commitAsync();
blockFp.wait();
assertMigrationState(primary, operation.migrationId, "blocking");
writeThread.start();
writeFp.wait();
blockFp.off();
commitThread.join();
assert.commandWorked(commitThread.returnData());
test.removeRecipientNodesFromDonor();
operation.forget();
test.waitForGarbageCollection(operation.migrationId, tenantIds);
writeFp.off();
writeThread.join();
const writeRes = writeThread.returnData();
assert.eq(writeRes.ok, 1);
assert.eq(writeRes.writeErrors[0].code, ErrorCodes.TenantMigrationCommitted);
test.stop();
})();
(() => {
jsTestLog(
"Testing blocked writes can see shard split outcome for a split that has been aborted and garbage collected.");
const test =
new ShardSplitTest({nodeOptions: Object.assign({setParameter: kGarbageCollectionParams})});
test.addRecipientNodes();
const tenantIds = [ObjectId() /*tenantA*/];
const operation = test.createSplitOperation(tenantIds);
const dbName = test.tenantDB(tenantIds[0].str, kTenantDefinedDbName);
const primary = test.donor.getPrimary();
const primaryDB = primary.getDB(dbName);
const writeFp = configureFailPoint(primaryDB, "hangWriteBeforeWaitingForMigrationDecision");
const writeThread = new Thread(insertDocument, primary.host, dbName, kCollName);
assert.commandWorked(primaryDB.runCommand({create: kCollName}));
const abortFp = configureFailPoint(primaryDB, "abortShardSplitBeforeLeavingBlockingState");
const blockFp = configureFailPoint(primaryDB, "pauseShardSplitAfterBlocking");
const commitThread = operation.commitAsync();
blockFp.wait();
writeThread.start();
writeFp.wait();
blockFp.off();
commitThread.join();
const res = commitThread.returnData();
assert.commandFailed(res);
assertMigrationState(primary, operation.migrationId, "aborted");
abortFp.off();
test.removeRecipientNodesFromDonor();
operation.forget();
test.waitForGarbageCollection(operation.migrationId, tenantIds);
writeFp.off();
writeThread.join();
const writeRes = writeThread.returnData();
assert.eq(writeRes.ok, 1);
assert.eq(writeRes.writeErrors[0].code, ErrorCodes.TenantMigrationAborted);
test.stop();
})();
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