106 lines
4.5 KiB
JavaScript
106 lines
4.5 KiB
JavaScript
/**
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* Tests that initial sync survives a network error during each stage of the cloning process,
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* except for the query stage.
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*
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* @tags: [
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* requires_mongobridge
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* ]
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*/
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import {configureFailPoint} from "jstests/libs/fail_point_util.js";
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import {ReplSetTest} from "jstests/libs/replsettest.js";
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const testName = "initial_sync_survives_network_error.js";
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const rst = new ReplSetTest({name: testName, nodes: 1, useBridge: true});
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rst.startSet();
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rst.initiate();
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const primary = rst.getPrimary();
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const primaryDb = primary.getDB("test");
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// The default WC is majority and this test can't satisfy majority writes.
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assert.commandWorked(
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primary.adminCommand({setDefaultRWConcern: 1, defaultWriteConcern: {w: 1}, writeConcern: {w: "majority"}}),
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);
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// Add some data to be cloned.
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assert.commandWorked(primaryDb.test.insert([{a: 1}, {b: 2}, {c: 3}]));
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jsTest.log("Adding a new node to the replica set");
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const secondary = rst.add({
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rsConfig: {priority: 0, votes: 0},
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setParameter: {
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"failpoint.initialSyncHangBeforeCopyingDatabases": tojson({mode: "alwaysOn"}),
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// This test is specifically testing that the cloners stop, so we turn off the
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// oplog fetcher to ensure that we don't inadvertently test that instead.
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"failpoint.hangBeforeStartingOplogFetcher": tojson({mode: "alwaysOn"}),
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"numInitialSyncAttempts": 1,
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},
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});
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rst.reInitiate();
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rst.waitForState(secondary, ReplSetTest.State.STARTUP_2);
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function retryStage(rst, {cloner, stage, extraData}) {
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const nRetries = 3;
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const primary = rst.getPrimary();
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const secondary = rst.getSecondary();
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const secondaryDb = secondary.getDB("test");
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const failPointData = Object.merge(extraData || {}, {cloner: cloner, stage: stage});
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// Set us up to stop right before the given stage.
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const beforeStageFailPoint = configureFailPoint(secondaryDb, "hangBeforeClonerStage", failPointData);
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// Set us up to stop after the given stage. This will also release the failpoint for the
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// previous stage, if it was set.
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const afterStageFailPoint = configureFailPoint(secondaryDb, "hangAfterClonerStage", failPointData);
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// Release the initial failpoint if set.
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assert.commandWorked(
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secondaryDb.adminCommand({configureFailPoint: "initialSyncHangBeforeCopyingDatabases", mode: "off"}),
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);
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beforeStageFailPoint.wait();
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let beforeRetryFailPoint = configureFailPoint(secondaryDb, "hangBeforeRetryingClonerStage", failPointData);
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primary.disconnect(secondary);
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jsTestLog("Testing initial attempt in cloner " + cloner + " stage " + stage);
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beforeStageFailPoint.off();
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for (let i = 1; i <= nRetries; i++) {
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jsTestLog("Testing retry #" + i + " in cloner " + cloner + " stage " + stage);
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beforeRetryFailPoint.wait();
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if (i == nRetries) {
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primary.reconnect(secondary);
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}
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// We do this dance with two failpoints because there's no way to skip past a failpoint
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// that we are waiting at and then hit it the next time.
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const beforeRBIDFailPoint = configureFailPoint(
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secondaryDb,
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"hangBeforeCheckingRollBackIdClonerStage",
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failPointData,
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);
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beforeRetryFailPoint.off();
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beforeRBIDFailPoint.wait();
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beforeRetryFailPoint = configureFailPoint(secondaryDb, "hangBeforeRetryingClonerStage", failPointData);
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beforeRBIDFailPoint.off();
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}
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jsTestLog("Testing retries in cloner " + cloner + " stage " + stage + " finished.");
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afterStageFailPoint.wait();
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jsTestLog("Cloner " + cloner + " stage " + stage + " complete.");
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return afterStageFailPoint;
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}
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retryStage(rst, {cloner: "AllDatabaseCloner", stage: "connect"});
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retryStage(rst, {cloner: "AllDatabaseCloner", stage: "listDatabases"});
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retryStage(rst, {cloner: "DatabaseCloner", stage: "listCollections", extraData: {database: "test"}});
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retryStage(rst, {cloner: "CollectionCloner", stage: "count", extraData: {nss: "test.test"}});
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const afterStageFailPoint = retryStage(rst, {
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cloner: "CollectionCloner",
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stage: "listIndexes",
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extraData: {nss: "test.test"},
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});
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jsTestLog("Releasing the oplog fetcher failpoint.");
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assert.commandWorked(
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secondary.getDB("test").adminCommand({configureFailPoint: "hangBeforeStartingOplogFetcher", mode: "off"}),
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);
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jsTestLog("Releasing the final cloner failpoint.");
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afterStageFailPoint.off();
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jsTestLog("Waiting for initial sync to complete.");
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// Wait for initial sync to complete.
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rst.awaitSecondaryNodes(null, [secondary]);
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rst.stopSet();
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