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//
// Tests launching multi-version ShardingTest clusters.
//
// We cannot test with the shards being replica sets. If the 'replSetInitiate' command goes to a
// 3.6 node, then the node will initiate in fCV 3.6 and refuse to talk to the 3.4 node. If the
// 'replSetInitiate' command goes to a 3.4 node, then the node will not write it's fCV document
// at initiation and the 3.6 node will refuse to initial sync from it. For 3.8, we will be able
// to send 'replSetInitiate' to the 3.6 node and it will write the document at initiate in fCV
// 3.6 (since this changed between 3.4 and 3.6), and the 3.8 node will initial sync from it.
// TODO(SERVER-33180) update this test to use replica set shards.
//
load('./jstests/multiVersion/libs/verify_versions.js');
(function() {
"use strict";
// Check our latest versions
var versionsToCheck = ["last-stable", "latest"];
var versionsToCheckConfig = ["latest"];
var versionsToCheckMongos = ["last-stable"];
jsTest.log("Testing mixed versions...");
// Set up a multi-version cluster
var st = new ShardingTest({
shards: 2,
mongos: 2,
other: {
mongosOptions: {binVersion: versionsToCheckMongos},
configOptions: {binVersion: versionsToCheckConfig},
shardOptions: {binVersion: versionsToCheck},
enableBalancer: true,
shardAsReplicaSet: false
}
});
var shards = [st.shard0, st.shard1];
var mongoses = [st.s0, st.s1];
var configs = [st.config0, st.config1, st.config2];
// Make sure we have hosts of all the different versions
var versionsFound = [];
for (var j = 0; j < shards.length; j++)
versionsFound.push(shards[j].getBinVersion());
assert.allBinVersions(versionsToCheck, versionsFound);
versionsFound = [];
for (var j = 0; j < mongoses.length; j++)
versionsFound.push(mongoses[j].getBinVersion());
assert.allBinVersions(versionsToCheckMongos, versionsFound);
versionsFound = [];
for (var j = 0; j < configs.length; j++)
versionsFound.push(configs[j].getBinVersion());
assert.allBinVersions(versionsToCheckConfig, versionsFound);
st.stop();
})();
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