100 lines
3.2 KiB
JavaScript
100 lines
3.2 KiB
JavaScript
import "jstests/multiVersion/libs/multi_rs.js";
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import {ReplSetTest} from "jstests/libs/replsettest.js";
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import {isFinished, startParallelOps} from "jstests/libs/test_background_ops.js";
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import {reconnect} from "jstests/replsets/rslib.js";
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for (let oldVersion of ["last-lts", "last-continuous"]) {
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jsTest.log("Testing upgrade/downgrade with " + oldVersion);
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let nodes = {
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n1: {binVersion: oldVersion},
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n2: {binVersion: oldVersion},
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a3: {binVersion: oldVersion},
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};
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let rst = new ReplSetTest({nodes: nodes});
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rst.startSet();
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rst.initiate(null, null, {initiateWithDefaultElectionTimeout: true});
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// Wait for a primary node...
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var primary = rst.getPrimary();
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let otherOpConn = new Mongo(rst.getURL());
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let insertNS = "test.foo";
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jsTest.log("Starting parallel operations during upgrade...");
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function findAndInsert(rsURL, coll) {
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var coll = new Mongo(rsURL).getCollection(coll + "");
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let count = 0;
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jsTest.log("Starting finds and inserts...");
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while (!isFinished()) {
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try {
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assert.commandWorked(coll.insert({_id: count, hello: "world"}));
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assert.neq(null, coll.findOne({_id: count}));
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} catch (e) {
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printjson(e);
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}
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count++;
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}
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jsTest.log("Finished finds and inserts...");
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return count;
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}
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let joinFindInsert = startParallelOps(
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primary, // The connection where the test info is passed and stored
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findAndInsert,
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[rst.getURL(), insertNS],
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);
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jsTest.log("Upgrading replica set from " + oldVersion + " to latest");
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rst.upgradeSet({binVersion: "latest"});
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jsTest.log("Replica set upgraded.");
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// We save a reference to the old primary so that we can call reconnect() on it before
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// joinFindInsert() would attempt to send the node an update operation that signals the parallel
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// shell running the background operations to stop.
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let oldPrimary = primary;
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// Wait for primary
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var primary = rst.getPrimary();
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printjson(rst.status());
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// Allow more valid writes to go through
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sleep(10 * 1000);
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jsTest.log("Downgrading replica set from latest to " + oldVersion);
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rst.upgradeSet({binVersion: oldVersion});
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jsTest.log("Replica set downgraded.");
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// Allow even more valid writes to go through
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sleep(10 * 1000);
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// Since the primary from before the upgrade took place was restarted as part of the
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// upgrade/downgrade process, we explicitly reconnect to it so that sending it an update
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// operation silently fails with an unchecked NotWritablePrimary error rather than a network
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// error.
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reconnect(oldPrimary.getDB("admin"));
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joinFindInsert();
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// Since the primary from after the upgrade took place was restarted as part of the downgrade
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// process, we explicitly reconnect to it.
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reconnect(primary.getDB("admin"));
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let totalInserts = primary.getCollection(insertNS).find().sort({_id: -1}).next()._id + 1;
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let dataFound = primary.getCollection(insertNS).count();
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jsTest.log("Found " + dataFound + " docs out of " + tojson(totalInserts) + " inserted.");
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assert.gt(dataFound / totalInserts, 0.5);
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rst.stopSet();
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}
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