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.
129 lines
3.2 KiB
JavaScript
129 lines
3.2 KiB
JavaScript
// This tests that:
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// * stale members get into state 3 (recovering)
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// * they stay in state 3 after restarting
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// * they can recover and go into state 2 if someone less up-to-date becomes primary
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//
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// This test requires persistence in order for a restarted node with a stale oplog to stay in the
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// RECOVERING state. A restarted node with an ephemeral storage engine will not have an oplog upon
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// restart, so will immediately resync.
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// @tags: [requires_persistence]
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/**
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* 1: initial insert
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* 2: initial sync
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* 3: blind s2
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* 4: overflow oplog
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* 5: unblind s2
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* 6: check s2.state == 3
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* 7: restart s2
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* 8: check s2.state == 3
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*/
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var w = 0;
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var wait = function(f) {
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w++;
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var n = 0;
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while (!f()) {
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if( n % 4 == 0 )
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print("toostale.js waiting " + w);
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if (++n == 4) {
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print("" + f);
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}
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assert(n < 200, 'tried 200 times, giving up');
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sleep(1000);
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}
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}
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var reconnect = function(a) {
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wait(function() {
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try {
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a.bar.stats();
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return true;
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} catch(e) {
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print(e);
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return false;
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}
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});
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};
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var name = "toostale"
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var replTest = new ReplSetTest({ name: name, nodes: 3, oplogSize: 5 });
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var host = getHostName();
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var nodes = replTest.startSet();
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replTest.initiate({_id : name, members : [
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{_id : 0, host : host+":"+replTest.ports[0], priority: 2},
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{_id : 1, host : host+":"+replTest.ports[1], arbiterOnly : true},
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{_id : 2, host : host+":"+replTest.ports[2], priority: 0}
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]});
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var master = replTest.getPrimary();
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var mdb = master.getDB("foo");
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print("1: initial insert");
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mdb.foo.save({a: 1000});
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print("2: initial sync");
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replTest.awaitReplication();
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print("3: stop s2");
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replTest.stop(2);
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print("waiting until the master knows the slave is blind");
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assert.soon(function() { return master.getDB("admin").runCommand({replSetGetStatus:1}).members[2].health == 0 });
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print("okay");
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print("4: overflow oplog");
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reconnect(master.getDB("local"));
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var count = master.getDB("local").oplog.rs.count();
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var prevCount = -1;
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while (count > prevCount) {
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print("inserting 1000");
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var bulk = mdb.bar.initializeUnorderedBulkOp();
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for (var i = 0; i < 1000; i++) {
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bulk.insert({ x: i, date: new Date(), str: "safkaldmfaksndfkjansfdjanfjkafa" });
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}
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assert.writeOK(bulk.execute());
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prevCount = count;
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replTest.awaitReplication();
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count = master.getDB("local").oplog.rs.count();
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print("count: "+count+" prev: "+prevCount);
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}
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print("5: restart s2");
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replTest.restart(2);
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print("waiting until the master knows the slave is not blind");
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assert.soon(function() { return master.getDB("admin").runCommand({replSetGetStatus:1}).members[2].health != 0 });
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print("okay");
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print("6: check s2.state == 3");
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var goStale = function() {
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wait(function() {
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var status = master.getDB("admin").runCommand({replSetGetStatus:1});
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printjson(status);
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return status.members[2].state == 3;
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});
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};
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goStale();
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print("7: restart s2");
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replTest.stop(2);
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replTest.restart(2);
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print("8: check s2.state == 3");
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assert.soon(function() {
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var status = master.getDB("admin").runCommand({replSetGetStatus:1});
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printjson(status);
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return status.members && status.members[2].state == 3;
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});
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replTest.stop(0);
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