65 lines
2.1 KiB
JavaScript
65 lines
2.1 KiB
JavaScript
/*
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* Test that arbiters vote no in elections if they can see a healthy primary of equal or greater
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* priority to the candidate, preventing flapping during certain kinds of network partitions.
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*
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* 1. Initiate a 3-node replica set with one arbiter (PSA) and a higher priority primary.
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* 2. Create a network partition between the primary and secondary.
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* 3. Wait long enough for the secondary to call for an election.
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* 4. Verify the primary and secondary did not change.
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* 5. Heal the partition.
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* 6. Verify the primary and secondary did not change and are in the initial term.
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*/
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(function() {
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"use strict";
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load("jstests/libs/logv2_helpers.js");
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var name = "no_flapping_during_network_partition";
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var replTest = new ReplSetTest({name: name, nodes: 3, useBridge: true});
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var nodes = replTest.startSet();
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var config = replTest.getReplSetConfig();
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config.members[0].priority = 5;
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config.members[2].arbiterOnly = true;
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config.settings = {
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electionTimeoutMillis: 2000
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};
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replTest.initiate(config);
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function getTerm(node) {
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return node.adminCommand({replSetGetStatus: 1}).term;
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}
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replTest.waitForState(nodes[0], ReplSetTest.State.PRIMARY);
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var primary = replTest.getPrimary();
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var secondary = replTest.getSecondary();
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var initialTerm = getTerm(primary);
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jsTestLog("Create a network partition between the primary and secondary.");
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primary.disconnect(secondary);
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jsTestLog("Wait long enough for the secondary to call for an election.");
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checkLog.contains(secondary, "can see a healthy primary");
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if (isJsonLog(secondary)) {
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checkLog.contains(secondary, "Not running for primary");
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} else {
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checkLog.contains(secondary, "not running for primary");
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}
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jsTestLog("Verify the primary and secondary do not change during the partition.");
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assert.eq(primary, replTest.getPrimary());
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assert.eq(secondary, replTest.getSecondary());
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if (isJsonLog(secondary)) {
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checkLog.contains(secondary, "Not running for primary");
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} else {
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checkLog.contains(secondary, "not running for primary");
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}
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jsTestLog("Heal the partition.");
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primary.reconnect(secondary);
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replTest.stopSet();
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})();
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