今天发现线上一台机器的cilent端很慢,通过打点记录相关耗时:
写道
server:
13-03-26 14:30:12 [INFO] com.duitang.biz.blog.impl.MysqlBlogQueryServiceImpl - queryBlogDetail cost40 ms
13-03-26 14:30:12 [INFO] com.duitang.dboss.remote.nio.DbossServerHandler - dboss invoke cost 45 ms
13-03-26 14:30:12 [INFO] com.duitang.dboss.remote.nio.DbossServerHandler - dboss invoke cost 20 ms
client
13-03-26 14:30:12 [INFO] com.duitang.dboss.client.net.ServerCenter - servercenter invoke cost 86 ms
13-03-26 14:30:12 [INFO] com.duitang.dboss.client.net.ServerCenter - servercenter invoke cost 22 ms
13-03-26 14:30:12 [INFO] com.duitang.biz.blog.impl.MysqlBlogQueryServiceImpl - queryBlogDetail cost40 ms
13-03-26 14:30:12 [INFO] com.duitang.dboss.remote.nio.DbossServerHandler - dboss invoke cost 45 ms
13-03-26 14:30:12 [INFO] com.duitang.dboss.remote.nio.DbossServerHandler - dboss invoke cost 20 ms
client
13-03-26 14:30:12 [INFO] com.duitang.dboss.client.net.ServerCenter - servercenter invoke cost 86 ms
13-03-26 14:30:12 [INFO] com.duitang.dboss.client.net.ServerCenter - servercenter invoke cost 22 ms
通过定位发现原因在于socket没有正确设置参数,应该加上:
public void connect() throws DbossConnectionException { if (!isConnected()) { try { socket = new Socket(); socket.setReuseAddress(true); socket.setKeepAlive(true); socket.setTcpNoDelay(true); socket.setSoLinger(true, 0); socket.connect(new InetSocketAddress(host, port), timeout); socket.setSoTimeout(timeout); } catch (IOException ex) { throw new DbossConnectionException(ex); } } }