c078dc37a9
This is just a cleanup work to hide some of the private state of ReplSetTest so it is easier to encapsulate and add new logic. Also enables strict mode.
55 lines
2.3 KiB
JavaScript
55 lines
2.3 KiB
JavaScript
// Test that setting maxSyncSourceLagSecs causes the set to change sync target
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//
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// This test requires the fsync command to ensure members experience a delay.
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// @tags: [requires_fsync]
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(function() {
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"use strict";
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var name = "maxSyncSourceLagSecs";
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var replTest = new ReplSetTest({name: name,
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nodes: 3,
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oplogSize: 5,
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nodeOptions: {setParameter: "maxSyncSourceLagSecs=3"}});
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var nodes = replTest.nodeList();
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replTest.startSet();
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replTest.initiate({"_id": name,
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"members": [
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{ "_id": 0, "host": nodes[0], priority: 3 },
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{ "_id": 1, "host": nodes[1], priority: 0 },
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{ "_id": 2, "host": nodes[2], priority: 0 }],
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});
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var master = replTest.getPrimary();
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master.getDB("foo").bar.save({a: 1});
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replTest.awaitReplication();
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var slaves = replTest.liveNodes.slaves;
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// need to put at least maxSyncSourceLagSecs b/w first op and subsequent ops
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// so that the shouldChangeSyncSource logic goes into effect
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sleep(4000);
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jsTestLog("Setting sync target of slave 2 to slave 1");
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assert.commandWorked(slaves[1].getDB("admin").runCommand({replSetSyncFrom: slaves[0].name}));
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assert.soon(function() {
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var res = slaves[1].getDB("admin").runCommand({"replSetGetStatus": 1});
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return res.syncingTo === slaves[0].name;
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}, "sync target not changed to other slave");
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printjson(replTest.status());
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jsTestLog("Lock slave 1 and add some docs. Force sync target for slave 2 to change to primary");
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assert.commandWorked(slaves[0].getDB("admin").runCommand({fsync:1, lock: 1}));
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master.getDB("foo").bar.save({a: 2});
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assert.soon(function() {
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var res = slaves[1].getDB("admin").runCommand({"replSetGetStatus": 1});
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return res.syncingTo === master.name;
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}, "sync target not changed back to primary");
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printjson(replTest.status());
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assert.soon(function() {
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return (slaves[1].getDB("foo").bar.count() === 2);
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}, "slave should have caught up after syncing to primary.");
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assert.commandWorked(slaves[0].getDB("admin").fsyncUnlock());
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replTest.stopSet();
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}());
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