在真实环境下运行的大量 SEVERE 错误信息

如下图所示，隔几秒钟就爆一次。

![C2B24544-7730-42B8-B47F-CFB7EB15F7CE](http://git.oschina.net/uploads/images/2014/0202/082406_2e4512b2_36.png)

启动错误信息：  
SEVERE: JGRP000029: oscdb-18085: failed sending message to cluster (100 bytes): java.lang.Exception: dest=/228.8.8.8:45588 (103 bytes), headers: PING: [PING: type=GET_MBRS_REQ, cluster=default], UDP: [channel_name=default]

问题可能出在如下几个警告信息上

二月 02, 2014 8:13:50 上午 org.jgroups.logging.JDKLogImpl warn  
WARNING: JGRP000015: the send buffer of socket DatagramSocket was set to 640KB, but the OS only allocated 131.07KB. This  
 might lead to performance problems. Please set your max send buffer in the OS correctly (e.g. net.core.wmem_max on Linu
x)  
二月 02, 2014 8:13:50 上午 org.jgroups.logging.JDKLogImpl warn  
WARNING: JGRP000015: the receive buffer of socket DatagramSocket was set to 20MB, but the OS only allocated  131.07KB. Th
is might lead to performance problems. Please set your max receive buffer in the OS correctly (e.g. net.core.rmem_max on
 Linux)  
二月 02, 2014 8:13:50 上午 org.jgroups.logging.JDKLogImpl warn  
WARNING: JGRP000015: the send buffer of socket MulticastSocket was set to 640KB, but the OS only allocated 131.07KB. Thi
s might lead to performance problems. Please set your max send buffer in the OS correctly (e.g. net.core.wmem_max on Lin
ux)  
二月 02, 2014 8:13:50 上午 org.jgroups.logging.JDKLogImpl warn  
WARNING: JGRP000015: the receive buffer of socket MulticastSocket was set to 25MB, but the OS only allocated 131.07KB. T
his might lead to performance problems. Please set your max receive buffer in the OS correctly (e.g. net.core.rmem_max o
n Linux)

但网页可以正常访问，感觉比较卡！

GVP 红薯/J2Cache

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GVP红薯/J2Cache

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