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52 lines
1.7 KiB
JavaScript
52 lines
1.7 KiB
JavaScript
// Tests that nodes sync from each other properly and that nodes find new sync sources when they
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// are disconnected from their current sync source.
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(function() {
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'use strict';
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var replTest = new ReplSetTest({
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name: 'sync2',
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nodes: [{rsConfig: {priority: 5}}, {arbiter: true}, {}, {}, {}],
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useBridge: true
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});
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var conns = replTest.startSet();
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replTest.initiate();
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var master = replTest.getPrimary();
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jsTestLog("Replica set test initialized");
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master.getDB("foo").bar.insert({x: 1});
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replTest.awaitReplication();
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conns[0].disconnect(conns[4]);
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conns[1].disconnect(conns[2]);
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conns[2].disconnect(conns[3]);
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conns[3].disconnect(conns[1]);
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// 4 is connected to 2
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conns[4].disconnect(conns[1]);
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conns[4].disconnect(conns[3]);
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assert.soon(function() {
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master = replTest.getPrimary();
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return master === conns[0];
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}, "node 0 should become primary before timeout", replTest.kDefaultTimeoutMS);
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replTest.awaitReplication();
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jsTestLog("Checking that ops still replicate correctly");
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var option = {writeConcern: {w: conns.length - 1, wtimeout: replTest.kDefaultTimeoutMS}};
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// In PV0, this write can fail as a result of a bad spanning tree. If 2 was syncing from 4 prior
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// to bridging, it will not change sync sources and receive the write in time. This was not a
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// problem in 3.0 because the old version of mongobridge caused all the nodes to restart during
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// partitioning, forcing the set to rebuild the spanning tree.
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assert.commandWorked(master.getDB("foo").bar.insert({x: 1}, option));
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// 4 is connected to 3
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conns[4].disconnect(conns[2]);
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conns[4].reconnect(conns[3]);
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assert.commandWorked(master.getDB("foo").bar.insert({x: 1}, option));
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replTest.stopSet();
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}());
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