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// 2 nodes with non-default priority.
// 3-node replica set with priorities 3, 3 and 1 (default)
// Start replica set. Ensure that highest priority node becomes primary eventually.
// Step down the primary and confirm that the next highest priority node becomes primary.
load('jstests/replsets/rslib.js');
(function() {
'use strict';
var name = 'priority_takeover_two_nodes_equal_priority';
var replSet = new ReplSetTest({
name: name,
nodes: [
{rsConfig: {priority: 3}},
{rsConfig: {priority: 3}},
{},
]
});
replSet.startSet();
replSet.initiate();
var primary;
var primaryIndex = -1;
var defaultPriorityNodeIndex = 2;
assert.soon(
function() {
primary = replSet.getPrimary();
replSet.nodes.find(function(node, index, array) {
if (primary.host == node.host) {
primaryIndex = index;
return true;
}
return false;
});
return primaryIndex !== defaultPriorityNodeIndex;
},
'neither of the priority 3 nodes was elected primary',
60000, // timeout
1000 // interval
);
try {
assert.commandWorked(primary.getDB('admin').runCommand({replSetStepDown: 90}));
} catch (x) {
// expected
}
var newPrimaryIndex = primaryIndex === 0 ? 1 : 0;
// Refresh connections to nodes.
replSet.status();
assert.commandWorked(replSet.nodes[newPrimaryIndex].adminCommand({
replSetTest: 1,
waitForMemberState: ReplSetTest.State.PRIMARY,
timeoutMillis: 60 * 1000,
}),
'node ' + newPrimaryIndex + ' ' + replSet.nodes[newPrimaryIndex].host +
' failed to become primary');
})();
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