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// Term counter should be present in oplog entries under protocol version 1 but should be absent
// protocol version 0.
(function () {
'use strict';
load('jstests/replsets/rslib.js');
var name = 'oplog_term';
var replSet = new ReplSetTest({name: name, nodes: 1, protocolVersion: 0});
replSet.startSet();
replSet.initiate();
replSet.waitForState(replSet.nodes[0], ReplSetTest.State.PRIMARY, 5 * 1000);
// Protocol version 0 - 'term' field should be absent from oplog entry.
var primary = replSet.getPrimary();
var collection = primary.getDB('test').getCollection(name);
assert.writeOK(collection.save({_id: 1}));
var oplogEntry = getLatestOp(primary);
assert(oplogEntry, 'unexpected empty oplog');
assert.eq(collection.getFullName(), oplogEntry.ns,
'unexpected namespace in oplog entry: ' + tojson(oplogEntry));
assert.eq(1, oplogEntry.o._id,
'oplog entry does not refer to most recently inserted document: ' +
tojson(oplogEntry));
assert(!oplogEntry.hasOwnProperty('t'),
'oplog entry must not contain term: ' + tojson(oplogEntry));
// Protocol version 1 - 'term' field should present in oplog entry.
var config = assert.commandWorked(primary.adminCommand({replSetGetConfig: 1})).config;
config.protocolVersion = 1;
config.version++;
assert.commandWorked(primary.adminCommand({replSetReconfig: config}));
replSet.waitForState(replSet.nodes[0], ReplSetTest.State.PRIMARY, 5 * 1000);
primary = replSet.getPrimary();
collection = primary.getDB('test').getCollection(name);
assert.writeOK(collection.save({_id: 2}));
oplogEntry = getLatestOp(primary);
assert(oplogEntry, 'unexpected empty oplog');
assert.eq(collection.getFullName(), oplogEntry.ns,
'unexpected namespace in oplog entry: ' + tojson(oplogEntry));
assert.eq(2, oplogEntry.o._id,
'oplog entry does not refer to most recently inserted document: ' +
tojson(oplogEntry));
assert(oplogEntry.hasOwnProperty('t'),
'oplog entry must contain term: ' + tojson(oplogEntry));
var status = assert.commandWorked(primary.adminCommand({replSetGetStatus:1}));
assert.eq(status.term, oplogEntry.t,
'term in oplog entry does not match term in status: ' + tojson(oplogEntry));
})();
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