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chunksize = 25
s = new ShardingTest( "migrate_cursor1" , 2 , 1 , 1 , { chunksize : chunksize } );
s.config.settings.update( { _id: "balancer" }, { $set : { stopped: true } } , true );
s.adminCommand( { enablesharding : "test" } );
db = s.getDB( "test" )
t = db.foo
bigString = ""
stringSize = 1024;
while ( bigString.length < stringSize )
bigString += "asdasdas";
stringSize = bigString.length
docsPerChunk = Math.ceil( ( chunksize * 1024 * 1024 ) / ( stringSize - 12 ) )
numChunks = 5
numDocs = 20 * docsPerChunk
print( "stringSize: " + stringSize + " docsPerChunk: " + docsPerChunk + " numDocs: " + numDocs )
for ( i=0; i<numDocs; i++ ){
t.insert( { _id : i , s : bigString } );
}
db.getLastError();
s.adminCommand( { shardcollection : "test.foo" , key : { _id : 1 } } );
assert.lt( numChunks , s.config.chunks.find().count() , "initial 1" );
primary = s.getServer( "test" ).getDB( "test" ).foo;
secondaryName = s.getOther( primary.name )
secondary = secondaryName.getDB( "test" ).foo;
assert.eq( numDocs , primary.count() , "initial 2" );
assert.eq( 0 , secondary.count() , "initial 3" );
assert.eq( numDocs , t.count() , "initial 4" )
x = primary.find( { _id : { $lt : 500 } } ).batchSize(2)
x.next();
s.adminCommand( { moveChunk : "test.foo" , find : { _id : 0 } , to : secondaryName.name } )
join = startParallelShell( "sleep(5); db.x.insert( {x:1} ); db.adminCommand( { moveChunk : 'test.foo' , find : { _id : " + docsPerChunk * 3 + " } , to : '" + secondaryName.name + "' } )" )
assert.soon( function(){ return db.x.count() > 0; } , "XXX" , 30000 , 1 )
print( "itcount: " + x.itcount() )
x = null;
for ( i=0; i<5; i++ ) gc()
print( "cursor should be gone" )
join();
//assert.soon( function(){ return numDocs == t.count(); } , "at end 1" )
sleep( 5000 )
assert.eq( numDocs , t.count() , "at end 2" )
assert.eq( numDocs , primary.count() + secondary.count() , "at end 3" )
s.stop()
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