关于tns连接的问题


各位大虾，小弟最近遇到一个很头痛的问题，一天数据库重新启动了，但是没有关闭listener,导致一个客户端老在尝试连接，但都报TNS-12518 TNS:listener could not hand off client connection  错误，但是数据库起来后其他客户都可以连接上数据库，就是之前一直在尝试连接的客户端连接不上数据库，难道oracle有一个锁定某个客户端连接的profile或者是参数之类的吗？不是很清楚，不知哪儿大虾可以指点一下，谢谢，下面是相关的信息：

From the logfile:
11-APR-2008 02:30:28 * (CONNECT_DATA=(SID=edwd)(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.127.64.144)(PORT=1633)) * establish * edwd * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12571: TNSacket writer failure
TNS-12560: TNSrotocol adapter error
TNS-00530: Protocol adapter error
Linux Error: 104: Connection reset by peer
11-APR-2008 02:30:29 * (CONNECT_DATA=(SID=edwd)(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.48.195.4)(PORT=58894)) * establish * edwd * 0
11-APR-2008 02:30:29 * (CONNECT_DATA=(SID=reportc)(GLOBAL_NAME=reportc.cert.gai.com)(CID=(PROGRAM=)(HOST=cvgsq01)(USER=pmmgrc))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.48.16.20)(PORT=50579)) * establish * reportc * 0
11-APR-2008 02:30:29 * (CONNECT_DATA=(SID=edwd)(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.48.195.4)(PORT=58901)) * establish * edwd * 0
11-APR-2008 02:30:29 * (CONNECT_DATA=(SID=reportc)(GLOBAL_NAME=reportc.cert.gai.com)(CID=(PROGRAM=)(HOST=cvgsq01)(USER=pmmgrc))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.48.16.20)(PORT=50580)) * establish * reportc * 0
11-APR-2008 02:30:31 * (CONNECT_DATA=(SID=edwd)(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.48.195.4)(PORT=58899)) * establish * edwd * 0
11-APR-2008 02:30:31 * (CONNECT_DATA=(SID=edwd)(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.127.64.144)(PORT=1632)) * establish * edwd * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12571: TNSacket writer failure
TNS-12560: TNSrotocol adapter error
TNS-00530: Protocol adapter error
Linux Error: 104: Connection reset by peer
11-APR-2008 02:30:31 * service_update * edwd * 0
11-APR-2008 02:30:31 * (CONNECT_DATA=(SID=edwd)(CID=(PROGRAM=)(HOST=__jdbc__)(USER=))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.127.64.144)(PORT=1624)) * establish * edwd * 12518
TNS-12518: TNS:listener could not hand off client connection
TNS-12571: TNSacket writer failure
TNS-12560: TNSrotocol adapter error
TNS-00530: Protocol adapter error
Linux Error: 104: Connection reset by peer

该时间段对应的alert信息：
Fri Apr 11 02:00:51 2008
WARNING:Oracle instance running on a system with low open file descriptor
        limit. Tune your system to increase this limit to avoid
        severe performance degradation.
PMON started with pid=2, OS id=9572
PSP0 started with pid=5, OS id=9607
MMAN started with pid=3, OS id=9615
DBW0 started with pid=4, OS id=9684
LGWR started with pid=6, OS id=9692
CKPT started with pid=7, OS id=9702
SMON started with pid=8, OS id=9771
RECO started with pid=9, OS id=9849
CJQ0 started with pid=10, OS id=9870
MMON started with pid=11, OS id=9914
Fri Apr 11 02:01:20 2008
starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...
MMNL started with pid=12, OS id=10002
Fri Apr 11 02:01:39 2008
starting up 1 shared server(s) ...
Fri Apr 11 02:02:00 2008
alter database mount
Fri Apr 11 02:02:05 2008
Setting recovery target incarnation to 1
Fri Apr 11 02:02:05 2008
Successful mount of redo thread 1, with mount id 908349592
Fri Apr 11 02:02:05 2008
Database mounted in Exclusive Mode
Completed: alter database mount
Fri Apr 11 02:20:06 2008
WARNING: inbound connection timed out (ORA-3136)
Fri Apr 11 02:33:19 2008
alter database open
Fri Apr 11 02:33:21 2008
Thread 1 opened at log sequence 1401
  Current log# 3 seq# 1401 mem# 0: /oracle/datafiles2/redo1/edwd/redo03_01.log
  Current log# 3 seq# 1401 mem# 1: /oracle/datafiles2/redo2/edwd/redo03_02.log
Successful open of redo thread 1

哈哈,顶你了哦.

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