TNS-12170 连接超时
在 sqlnet.log 中错误如下：Fatal NI connect error 12170. VERSION INFORMATION: TNS for Linux: Version 10.2.0.1.0 - Production Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 -
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在 sqlnet.log 中错误如下：
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 10.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
Time: 29-NOV-2006 19:13:40
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 110
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=219.239.13.3)(PORT=19948))
# oerr tns 12170
12170, 00000, "TNS:Connect timeout occurred"
// *Cause: The server shut down because connection establishment or
// communication with a client failed to complete within the allotted time
// interval. This may be a result of network or system delays; or this may
// indicate that a malicious client is trying to cause a Denial of Service
// attack on the server.
// *Action: If the error occurred because of a slow network or system,
// reconfigure one or all of the parameters SQLNET.INBOUND_CONNECT_TIMEOUT,
// SQLNET.SEND_TIMEOUT, SQLNET.RECV_TIMEOUT in sqlnet.ora to larger values.
// If a malicious client is suspected, use the address in sqlnet.log to
// identify the source and restrict access. Note that logged addresses may
// not be reliable as they can be forged (e.g. in TCP/IP).
于是增大 sqlnet.ora 中的参数：
SQLNET.INBOUND_CONNECT_TIMEOUT = 30
SQLNET.RECV_TIMEOUT = 30
SQLNET.SEND_TIMEOUT = 30
在 listener.ora 增加：
INBOUND_CONNECT_TIMEOUT_LISTENER = 30
重启监听器：
lsnrctl reload
Fatal NI connect error 12170.
VERSION INFORMATION:
TNS for Linux: Version 10.2.0.1.0 - Production
Oracle Bequeath NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
TCP/IP NT Protocol Adapter for Linux: Version 10.2.0.1.0 - Production
Time: 29-NOV-2006 19:13:40
Tracing not turned on.
Tns error struct:
ns main err code: 12535
TNS-12535: TNS:operation timed out
ns secondary err code: 12560
nt main err code: 505
TNS-00505: Operation timed out
nt secondary err code: 110
nt OS err code: 0
Client address: (ADDRESS=(PROTOCOL=tcp)(HOST=219.239.13.3)(PORT=19948))
# oerr tns 12170
12170, 00000, "TNS:Connect timeout occurred"
// *Cause: The server shut down because connection establishment or
// communication with a client failed to complete within the allotted time
// interval. This may be a result of network or system delays; or this may
// indicate that a malicious client is trying to cause a Denial of Service
// attack on the server.
// *Action: If the error occurred because of a slow network or system,
// reconfigure one or all of the parameters SQLNET.INBOUND_CONNECT_TIMEOUT,
// SQLNET.SEND_TIMEOUT, SQLNET.RECV_TIMEOUT in sqlnet.ora to larger values.
// If a malicious client is suspected, use the address in sqlnet.log to
// identify the source and restrict access. Note that logged addresses may
// not be reliable as they can be forged (e.g. in TCP/IP).
于是增大 sqlnet.ora 中的参数：
SQLNET.INBOUND_CONNECT_TIMEOUT = 30
SQLNET.RECV_TIMEOUT = 30
SQLNET.SEND_TIMEOUT = 30
在 listener.ora 增加：
INBOUND_CONNECT_TIMEOUT_LISTENER = 30
重启监听器：
lsnrctl reload
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