90 lines
3.0 KiB
JavaScript
90 lines
3.0 KiB
JavaScript
load("jstests/replsets/rslib.js");
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(function() {
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"use strict";
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var name = "protocol_version_upgrade_downgrade";
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var rst = new ReplSetTest({name: name, nodes: 3});
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rst.startSet();
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// Initiate the replset in protocol version 0.
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var conf = rst.getReplSetConfig();
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conf.settings = conf.settings || {};
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conf.protocolVersion = 0;
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// The first node will always be the primary.
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conf.members[0].priority = 1;
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conf.members[1].priority = 0;
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conf.members[2].priority = 0;
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rst.initiate(conf);
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rst.awaitSecondaryNodes();
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var primary = rst.getPrimary();
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var primaryColl = primary.getDB("test").coll;
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// Set verbosity for replication on all nodes.
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var verbosity = {
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"setParameter": 1,
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"logComponentVerbosity": {
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"replication": {"verbosity": 3},
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}
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};
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primary.adminCommand(verbosity);
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rst.getSecondaries().forEach(function(node) {
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node.adminCommand(verbosity);
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});
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// Do a write, this will set up sync sources on secondaries.
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print("do a write");
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assert.writeOK(primaryColl.bar.insert({x: 1}, {writeConcern: {w: 3}}));
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// Check optime format in protocol version 0, which is a Timestamp.
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var res = primary.adminCommand({replSetGetStatus: 1});
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assert.commandWorked(res);
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// Check the optime is a Timestamp, not an OpTime { ts: Timestamp, t: int }
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assert.eq(res.members[0].optime.ts, null);
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//
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// Upgrade protocol version
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//
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res = primary.adminCommand({replSetGetConfig: 1});
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assert.commandWorked(res);
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conf = res.config;
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assert.eq(conf.protocolVersion, undefined);
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// Change protocol version
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conf.protocolVersion = 1;
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conf.version++;
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reconfig(rst, conf);
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// This write may block until all nodes finish upgrade, because replSetUpdatePosition may be
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// rejected by the primary for mismatched config version before secondaries get reconfig.
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// This will make secondaries wait for 0.5 seconds and retry.
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assert.writeOK(primaryColl.bar.insert({x: 2}, {writeConcern: {w: 3}}));
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// Check optime format in protocol version 1, which is an object including the term.
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res = primary.adminCommand({replSetGetStatus: 1});
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assert.commandWorked(res);
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assert.eq(res.members[0].optime.t, NumberLong(0));
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// Check last vote.
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var lastVote = primary.getDB("local")['replset.election'].findOne();
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assert.eq(lastVote.term, NumberLong(0));
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assert.eq(lastVote.candidateIndex, NumberLong(-1));
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//
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// Downgrade protocol version
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//
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res = primary.adminCommand({replSetGetConfig: 1});
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assert.commandWorked(res);
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conf = res.config;
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assert.eq(conf.protocolVersion, 1);
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// Change protocol version
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conf.protocolVersion = 0;
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conf.version++;
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reconfig(rst, conf);
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assert.writeOK(primaryColl.bar.insert({x: 3}, {writeConcern: {w: 3}}));
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// Check optime format in protocol version 0, which is a Timestamp.
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res = primary.adminCommand({replSetGetStatus: 1});
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assert.commandWorked(res);
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assert.eq(res.members[0].optime.ts, null);
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})();
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