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  1. Core Server
  2. SERVER-13404

2.6 secondaries abort when replicated index spec contains a dollar-sign field

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    • Type: Icon: Bug Bug
    • Resolution: Won't Fix
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 2.6.0-rc2
    • Component/s: Index Maintenance
    • ALL
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      var replSet = new ReplSetTest({
    name: 'mixedVersionIndexes',
    nodes: 3,
    nodeOptions: {
        smallfiles: '',
        binVersion: MongoRunner.versionIterator(['2.4', '2.6'])
    }
});

replSet.startSet();
replSet.initiate();
replSet.awaitSecondaryNodes();

// make a 2.4 node the primary
assert.soon(function() {
    var primary = replSet.getPrimary();

    if (primary.getDB('admin').version().startsWith('2.4') === false) {
        try {
            primary.getDB('admin').runCommand({replSetStepDown: 60});
        } catch(e) {
            jsTest.log(e);
        }
        return false;
    }

    return true;
}, 'failed to elect 2.4 node as primary', 60000, 30000);

// create an invalid 2.6 index on the 2.4 primary
var coll = replSet.getPrimary().getDB('foo').bar;
coll.ensureIndex({$foo:1});

replSet.awaitReplication();

jsTest.log('available nodes:\n' + tojson(replSet.liveNodes));
      Show
      var replSet = new ReplSetTest({ name: 'mixedVersionIndexes', nodes: 3, nodeOptions: { smallfiles: '', binVersion: MongoRunner.versionIterator(['2.4', '2.6']) } }); replSet.startSet(); replSet.initiate(); replSet.awaitSecondaryNodes(); // make a 2.4 node the primary assert.soon(function() { var primary = replSet.getPrimary(); if (primary.getDB('admin').version().startsWith('2.4') === false) { try { primary.getDB('admin').runCommand({replSetStepDown: 60}); } catch(e) { jsTest.log(e); } return false; } return true; }, 'failed to elect 2.4 node as primary', 60000, 30000); // create an invalid 2.6 index on the 2.4 primary var coll = replSet.getPrimary().getDB('foo').bar; coll.ensureIndex({$foo:1}); replSet.awaitReplication(); jsTest.log('available nodes:\n' + tojson(replSet.liveNodes));

      A 2.6 secondary will abort if a replicated index spec contains a field with a dollar sign. This bug is similar to SERVER-13206, which had a fairly narrow fix and may be missing other CannotCreateIndex scenarios.

      Output on secondaries:

       m31000| 2014-03-28T15:20:27.384-0400 [repl writer worker 1] ERROR: writer worker caught exception:  :: caused by :: 67 bad index key pattern { $foo: 1.0 }: Index key contains an illegal field name: field name starts with '$'. on: { ts: Timestamp 1396034426000|1, h: -8749786978335064046, v: 2, op: "i", ns: "foo.system.indexes", o: { _id: ObjectId('5335cb7ad7a2aa0c289a8882'), ns: "foo.bar", key: { $foo: 1.0 }, name: "$foo_1" } }
 m31000| 2014-03-28T15:20:27.384-0400 [repl writer worker 1] Fatal Assertion 16360
 m31000| 2014-03-28T15:20:27.384-0400 [repl writer worker 1] 
 m31000| 
 m31000| ***aborting after fassert() failure
 m31000|

      Version: 6412fa7eca5c834f29490ab6cdd1cb13b3d99c97

            Assignee:
            Unassigned Unassigned
            Reporter:
            kamran.khan Kamran K.
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            0 Vote for this issue
            Watchers:
            5 Start watching this issue

              Created:
              Updated:
              Resolved: