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critical path in lookup of DBPortPool #67

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critical path in lookup of DBPortPool #67

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15 changes: 5 additions & 10 deletions src/main/com/mongodb/DBPortPool.java
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Expand Up @@ -54,16 +54,11 @@ static class Holder {

DBPortPool get( ServerAddress addr ){

DBPortPool p = _pools.get( addr );

if (p != null)
return p;

synchronized (_pools) {
p = _pools.get( addr );
if (p != null) {
DBPortPool p = _pools.get( addr );

if (p != null)
return p;
}

p = new DBPortPool( addr , _options );
_pools.put( addr , p);
Expand All @@ -85,9 +80,9 @@ DBPortPool get( ServerAddress addr ){
}
}

return p;
}

return p;
}

void close(){
Expand Down Expand Up @@ -115,7 +110,7 @@ private ObjectName createObjectName( ServerAddress addr ) throws MalformedObject
}

final MongoOptions _options;
final Map<ServerAddress,DBPortPool> _pools = Collections.synchronizedMap( new HashMap<ServerAddress,DBPortPool>() );
final Map<ServerAddress,DBPortPool> _pools = new HashMap<ServerAddress,DBPortPool>();
final MBeanServer _server;
}

Expand Down