mirror of https://github.com/mongodb/mongo
93 lines
3.4 KiB
JavaScript
93 lines
3.4 KiB
JavaScript
/**
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* Tests that a multi-oplog batched multi delete operation can be rolled back.
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* @tags: [
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* requires_fcv_71,
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* requires_replication,
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* ]
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*/
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import {FeatureFlagUtil} from "jstests/libs/feature_flag_util.js";
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import {RollbackTest} from "jstests/replsets/libs/rollback_test.js";
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// Operations that will be present on both nodes, before the common point.
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const dbName = "test";
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const collName = "test.t";
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const collNameShort = "t";
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const docIds = [0, 1, 2, 3];
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let CommonOps = (node) => {
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const coll = node.getCollection(collName);
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assert.commandWorked(
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coll.insert(
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docIds.map((x) => {
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return {_id: x, x: x};
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}),
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),
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);
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};
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// Operations that will be performed on the rollback node past the common point.
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let RollbackOps = (node, rst) => {
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jsTestLog("NODE PORT: " + node.port);
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const coll = node.getCollection(collName);
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const result = assert.commandWorked(coll.remove({}));
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jsTestLog("delete result: " + tojson(result));
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assert.eq(result.nRemoved, docIds.length);
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assert.eq(coll.countDocuments({}), 0);
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// Check oplog entries generated for the large batched write.
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// Query returns any oplog entries where the applyOps array contains an operation with a
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// namespace matching the test collection namespace. Oplog entries will be returned in reverse
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// timestamp order (most recent first).
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const ops = rst
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.findOplog(node, {
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op: "c",
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ns: "admin.$cmd",
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"o.applyOps": {$elemMatch: {op: "d", ns: coll.getFullName()}},
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})
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.toArray();
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jsTestLog("applyOps oplog entries: " + tojson(ops));
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assert.eq(2, ops.length, "Should have two applyOps oplog entries");
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const deletedDocIds = ops.map((entry) => entry.o.applyOps.map((op) => op.o._id)).flat();
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jsTestLog("deleted doc _ids: " + tojson(deletedDocIds));
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assert.sameMembers(deletedDocIds, docIds);
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};
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// Set up Rollback Test.
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const nodeOptions = {
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setParameter: {
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// On a slow machine, the default of 5 ms for 'batchedDeletesTargetBatchTimeMS'
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// may cause the batched delete stage to break up the delete operation into
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// smaller batches that not allow us to test the effect of
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// 'maxNumberOfBatchedOperationsInSingleOplogEntry' on
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// OpObserver::onBatchedWriteCommit().
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// Setting 'batchedDeletesTargetBatchTimeMS' to zero (for unlimited) ensures that
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// the delete stage will alway put all the requested deletes in a single batch.
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batchedDeletesTargetBatchTimeMS: 0,
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maxNumberOfBatchedOperationsInSingleOplogEntry: 2,
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},
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};
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const rollbackTest = new RollbackTest(jsTestName(), /*replSet=*/ undefined, nodeOptions);
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if (!FeatureFlagUtil.isEnabled(rollbackTest.getPrimary(), "LargeBatchedOperations")) {
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jsTestLog("Skipping test because required feature flag is not enabled.");
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rollbackTest.stop();
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quit();
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}
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CommonOps(rollbackTest.getPrimary());
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const rollbackNode = rollbackTest.transitionToRollbackOperations();
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const rst = rollbackTest.getTestFixture();
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RollbackOps(rollbackNode, rst);
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// Wait for rollback to finish.
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rollbackTest.transitionToSyncSourceOperationsBeforeRollback();
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rollbackTest.transitionToSyncSourceOperationsDuringRollback();
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rollbackTest.transitionToSteadyStateOperations();
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// Check collection count.
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const primary = rollbackTest.getPrimary();
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const coll = primary.getCollection(collName);
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assert.eq(docIds.length, coll.countDocuments({}));
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rollbackTest.stop();
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