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.
62 lines
2.6 KiB
JavaScript
62 lines
2.6 KiB
JavaScript
// test that a rollback of an op more than 1800 secs newer than the new master causes fatal shutdown
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//
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// If all data-bearing nodes in a replica set are using an ephemeral storage engine, the set will
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// not be able to survive a scenario where all data-bearing nodes are down simultaneously. In such a
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// scenario, none of the members will have any data, and upon restart will each look for a member to
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// inital sync from, so no primary will be elected. This test induces such a scenario, so cannot be
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// run on ephemeral storage engines.
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// @tags: [requires_persistence]
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(function() {
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"use strict";
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// set up a set and grab things for later
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var name = "rollback_too_new";
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var replTest = new ReplSetTest({name: name, nodes: 3});
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var nodes = replTest.nodeList();
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var conns = replTest.startSet();
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replTest.initiate({"_id": name,
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"members": [
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{ "_id": 0, "host": nodes[0] },
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{ "_id": 1, "host": nodes[1], arbiterOnly: true },
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{ "_id": 2, "host": nodes[2], priority: 0 }],
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"settings": {
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"chainingAllowed": false
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}
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});
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var c_conn = conns[2];
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var CID = replTest.getNodeId(c_conn);
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// get master and do an initial write
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var master = replTest.getPrimary();
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var options = {writeConcern: {w: 2, wtimeout: 60000}};
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assert.writeOK(master.getDB(name).foo.insert({x: 1}, options));
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// add an oplog entry from the distant future as the most recent entry on node C
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var future_oplog_entry = conns[2].getDB("local").oplog.rs.find().sort({$natural: -1})[0];
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future_oplog_entry["ts"] = new Timestamp(future_oplog_entry["ts"].getTime() + 200000, 1);
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options = {writeConcern: {w: 1, wtimeout: 60000}};
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assert.writeOK(conns[2].getDB("local").oplog.rs.insert(future_oplog_entry, options));
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replTest.stop(CID);
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// do one write to master
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// in order to trigger a rollback on C
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assert.writeOK(master.getDB(name).foo.insert({x: 2}, options));
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// Node C should connect to new master as a sync source because chaining is disallowed.
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// C is ahead of master but it will still connect to it.
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clearRawMongoProgramOutput();
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replTest.restart(CID);
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assert.soon(function() {
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try {
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return rawMongoProgramOutput().match(
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"rollback error: not willing to roll back more than 30 minutes of data");
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} catch (e) {
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return false;
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}
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}, "node C failed to fassert", 60 * 1000);
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replTest.stopSet();
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}());
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