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/* Tests count and distinct using slaveOk. Also tests a scenario querying a set
* where only one secondary is up.
*/
var st = new ShardingTest( testName = "countSlaveOk",
numShards = 1,
verboseLevel = 0,
numMongos = 1,
{ rs : true,
rs0 : { nodes : 2 }
})
var rst = st._rs[0].test
// Insert data into replica set
var conn = new Mongo( st.s.host )
conn.setLogLevel( 3 )
var coll = conn.getCollection( "test.countSlaveOk" )
coll.drop()
for( var i = 0; i < 300; i++ ){
coll.insert( { i : i % 10 } )
}
var connA = conn
var connB = new Mongo( st.s.host )
var connC = new Mongo( st.s.host )
// Make sure the writes get through, otherwise we can continue to error these one-at-a-time
coll.getDB().getLastError()
st.printShardingStatus()
// Wait for client to update itself and replication to finish
rst.awaitReplication()
var primary = rst.getPrimary()
var sec = rst.getSecondary()
// Data now inserted... stop the master, since only two in set, other will still be secondary
rst.stop( rst.getMaster(), undefined, true )
printjson( rst.status() )
// Wait for the mongos to recognize the slave
ReplSetTest.awaitRSClientHosts( conn, sec, { ok : true, secondary : true } )
// Make sure that mongos realizes that primary is already down
ReplSetTest.awaitRSClientHosts( conn, primary, { ok : false });
// Need to check slaveOk=true first, since slaveOk=false will destroy conn in pool when
// master is down
conn.setSlaveOk()
// count using the command path
assert.eq( 30, coll.find({ i : 0 }).count() )
// count using the query path
assert.eq( 30, coll.find({ i : 0 }).itcount() );
assert.eq( 10, coll.distinct("i").length )
try {
conn.setSlaveOk( false )
// Should throw exception, since not slaveOk'd
coll.find({ i : 0 }).count()
print( "Should not reach here!" )
printjson( coll.getDB().getLastError() )
assert( false )
}
catch( e ){
print( "Non-slaveOk'd connection failed." )
}
// Finish
st.stop()
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