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//
// Tests that only a correct major-version is needed to connect to a shard via mongos
//
(function() {
'use strict';
var st = new ShardingTest({ shards : 1, mongos : 2 });
var mongos = st.s0;
var staleMongos = st.s1;
var admin = mongos.getDB( "admin" );
var config = mongos.getDB( "config" );
var coll = mongos.getCollection( "foo.bar" );
// Shard collection
assert.commandWorked(admin.runCommand({ enableSharding : coll.getDB() + "" }));
assert.commandWorked(admin.runCommand({ shardCollection : coll + "", key : { _id : 1 } }));
// Make sure our stale mongos is up-to-date with no splits
staleMongos.getCollection( coll + "" ).findOne();
// Run one split
assert.commandWorked(admin.runCommand({ split : coll + "", middle : { _id : 0 } }));
// Make sure our stale mongos is not up-to-date with the split
printjson( admin.runCommand({ getShardVersion : coll + "" }) );
printjson( staleMongos.getDB( "admin" ).runCommand({ getShardVersion : coll + "" }) );
// Compare strings b/c timestamp comparison is a bit weird
assert.eq( Timestamp( 1, 2 ),
admin.runCommand({ getShardVersion : coll + "" }).version );
assert.eq( Timestamp( 1, 0 ),
staleMongos.getDB( "admin" ).runCommand({ getShardVersion : coll + "" }).version );
// See if our stale mongos is required to catch up to run a findOne on an existing connection
staleMongos.getCollection( coll + "" ).findOne();
printjson( staleMongos.getDB( "admin" ).runCommand({ getShardVersion : coll + "" }) );
assert.eq( Timestamp( 1, 0 ),
staleMongos.getDB( "admin" ).runCommand({ getShardVersion : coll + "" }).version );
// See if our stale mongos is required to catch up to run a findOne on a new connection
staleMongos = new Mongo( staleMongos.host );
staleMongos.getCollection( coll + "" ).findOne();
printjson( staleMongos.getDB( "admin" ).runCommand({ getShardVersion : coll + "" }) );
assert.eq( Timestamp( 1, 0 ),
staleMongos.getDB( "admin" ).runCommand({ getShardVersion : coll + "" }).version );
st.stop();
})();
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