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// Tests that an empty shard can't be the cause of a chunk reset
var st = new ShardingTest({ shards : 2, mongos : 2 })
// Don't balance since we're manually moving chunks
st.stopBalancer()
var coll = st.s.getCollection( jsTestName() + ".coll" )
for( var i = -10; i < 10; i++ )
coll.insert({ _id : i })
st.shardColl( coll, { _id : 1 }, { _id : 0 } )
jsTestLog( "Sharded setup complete" )
st.printShardingStatus()
jsTestLog( "Setting initial versions for each mongos..." )
coll.find().itcount()
var collB = st.s1.getCollection( "" + coll )
collB.find().itcount()
jsTestLog( "Migrating via first mongos..." )
var fullShard = st.getShard( coll, { _id : 1 } )
var emptyShard = st.getShard( coll, { _id : -1 } )
var admin = st.s.getDB( "admin" )
assert.soon(
function () {
var result = admin.runCommand( { moveChunk: "" + coll,
find: { _id: -1 },
to: fullShard.shardName,
_waitForDelete: true } );
jsTestLog('moveChunk result = ' + tojson(result));
return result.ok;
},
"Setup FAILURE: Unable to move chunk from " + emptyShard.shardName +
" to " + fullShard.shardName
);
jsTestLog( "Resetting shard version via first mongos..." )
coll.find().itcount()
jsTestLog( "Making sure we don't insert into the wrong shard..." )
collB.insert({ _id : -11 })
var emptyColl = emptyShard.getCollection( "" + coll )
print( emptyColl )
print( emptyShard )
print( emptyShard.shardName )
st.printShardingStatus()
assert.eq( 0, emptyColl.find().itcount() )
jsTestLog("DONE!");
st.stop();
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