69 lines
2.8 KiB
JavaScript
69 lines
2.8 KiB
JavaScript
// Test the populating lastOpVisible field of the ReplSetMetadata.
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// First we do a writeConcern-free write and ensure that a local read will return the same
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// lastOpVisible, and that majority read with afterOpTime of lastOpVisible will return it as well.
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// We then confirm that a writeConcern majority write will be seen as the lastVisibleOp by a
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// majority read.
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(function() {
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"use strict";
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var name = 'lastOpVisible';
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var replTest = new ReplSetTest({name: name,
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nodes: 3,
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nodeOptions: {enableMajorityReadConcern: ''}});
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try {
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replTest.startSet();
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} catch (e) {
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var conn = MongoRunner.runMongod();
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if (!conn.getDB('admin').serverStatus().storageEngine.supportsCommittedReads) {
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print("Skipping read_majority.js since storageEngine doesn't support it.");
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MongoRunner.stopMongod(conn);
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return;
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}
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throw e;
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}
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replTest.initiate();
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var primary = replTest.getPrimary();
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// Do an insert without writeConcern.
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var res = primary.getDB(name).runCommandWithMetadata("insert",
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{insert: name, documents: [{x:1}]},
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{"$replData": 1});
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assert.commandWorked(res.commandReply);
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var last_op_visible = res.metadata["$replData"].lastOpVisible;
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// A find should return the same lastVisibleOp.
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res = primary.getDB(name).runCommandWithMetadata("find",
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{find: name, readConcern: {level: "local"}},
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{"$replData": 1});
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assert.commandWorked(res.commandReply);
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assert.eq(last_op_visible, res.metadata["$replData"].lastOpVisible);
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// A majority readConcern with afterOpTime: lastOpVisible should also return the same lastVisibleOp.
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res = primary.getDB(name).runCommandWithMetadata(
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"find",
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{find: name, readConcern: {level: "majority", afterOpTime: last_op_visible}},
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{"$replData": 1});
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assert.commandWorked(res.commandReply);
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assert.eq(last_op_visible, res.metadata["$replData"].lastOpVisible);
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// Do an insert without writeConcern.
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res = primary.getDB(name).runCommandWithMetadata(
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"insert",
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{insert: name, documents: [{x:1}], writeConcern: {w: "majority"}},
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{"$replData": 1});
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assert.commandWorked(res.commandReply);
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last_op_visible = res.metadata["$replData"].lastOpVisible;
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// A majority readConcern should return the same lastVisibleOp.
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res = primary.getDB(name).runCommandWithMetadata("find",
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{find: name, readConcern: {level: "majority"}},
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{"$replData": 1});
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assert.commandWorked(res.commandReply);
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assert.eq(last_op_visible, res.metadata["$replData"].lastOpVisible);
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}());
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