mirror of https://github.com/mongodb/mongo
98 lines
4.0 KiB
JavaScript
98 lines
4.0 KiB
JavaScript
/**
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* Tests that initial sync will abort an attempt if the sync source enters initial sync during
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* cloning. This test will timeout if the attempt is not aborted.
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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_fails_when_source_resyncs";
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const rst = new ReplSetTest({name: testName, nodes: [{}, {rsConfig: {priority: 0, votes: 0}}]});
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const nodes = 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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let initialSyncSource = rst.getSecondary();
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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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rst.awaitReplication();
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jsTest.log("Adding the initial sync destination node to the replica set");
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const initialSyncNode = 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 detect the source going into initial
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// sync mode, so we turn off the oplog fetcher to ensure that we don't inadvertently test
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// that instead.
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"failpoint.hangBeforeStartingOplogFetcher": tojson({mode: "alwaysOn"}),
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"numInitialSyncAttempts": 1,
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"failpoint.forceSyncSourceCandidate": tojson({mode: "alwaysOn", data: {hostAndPort: initialSyncSource.host}}),
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},
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});
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rst.reInitiate();
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rst.waitForState(initialSyncNode, ReplSetTest.State.STARTUP_2);
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// The code handling this case is common to all cloners, so run it only for the stage most likely
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// to see an error.
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const cloner = "CollectionCloner";
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const stage = "query";
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// Set us up to hang before finish so we can check status.
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const beforeFinishFailPoint = configureFailPoint(initialSyncNode, "initialSyncHangBeforeFinish");
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const initialSyncNodeDb = initialSyncNode.getDB("test");
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const failPointData = {
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cloner: cloner,
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stage: stage,
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nss: "test.test",
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};
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// Set us up to stop right before the given stage.
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const beforeStageFailPoint = configureFailPoint(initialSyncNodeDb, "hangBeforeClonerStage", failPointData);
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// Release the initial failpoint.
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assert.commandWorked(
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initialSyncNodeDb.adminCommand({configureFailPoint: "initialSyncHangBeforeCopyingDatabases", mode: "off"}),
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);
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beforeStageFailPoint.wait();
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jsTestLog("Testing resyncing sync source in cloner " + cloner + " stage " + stage);
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// We hold the source in initial sync mode.
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initialSyncSource = rst.restart(initialSyncSource, {
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startClean: true,
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setParameter: {"failpoint.initialSyncHangBeforeFinish": tojson({mode: "alwaysOn"})},
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});
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// Wait for the source to go into initial sync.
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rst.waitForState(initialSyncSource, ReplSetTest.State.STARTUP_2);
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jsTestLog("Resuming the initial sync.");
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beforeStageFailPoint.off();
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beforeFinishFailPoint.wait();
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const res = assert.commandWorked(initialSyncNode.adminCommand({replSetGetStatus: 1}));
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// The initial sync should have failed.
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assert.eq(res.initialSyncStatus.failedInitialSyncAttempts, 1);
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// Release the sync node oplog fetcher so the test completes.
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assert.commandWorked(
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initialSyncNodeDb.adminCommand({configureFailPoint: "hangBeforeStartingOplogFetcher", mode: "off"}),
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);
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beforeFinishFailPoint.off();
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// Release the initial sync source so the test completes.
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assert.commandWorked(
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initialSyncSource.getDB("admin").adminCommand({configureFailPoint: "initialSyncHangBeforeFinish", mode: "off"}),
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);
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// Wait for the fassert to stop the initial sync node.
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assert.eq(MongoRunner.EXIT_ABRUPT, waitMongoProgram(initialSyncNode.port));
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// We skip validation and dbhashes because the initial sync failed so the initial sync node is
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// invalid and unreachable.
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TestData.skipCheckDBHashes = true;
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rst.stopSet(null, null, {skipValidation: true});
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