1.連線資料庫時候報錯
[ora10g@dbsvr dbs]$ sqlplus "sys/oracle@test as sysdba"
sql*plus: release 10.2.0.4.0 - production on sun jun 14 16:59:39 2009
error:
ora-28547: connection to server failed, probable oracle net admin error
2。檢視監聽狀態
[ora10g@dbsvr admin]$ lsnrctl status
lsnrctl for linux: version 10.2.0.4.0 - production on 14-jun-2009 17:02:15
connecting to (description=(address=(protocol=tcp)(host=192.168.0.10)(port=1521)))
status of the listener
------------------------
alias listener
version tnslsnr for linux: version 10.2.0.4.0 - production
start date 14-jun-2009 16:59:04
uptime 0 days 0 hr. 3 min. 11 sec
trace level off
security on: local os authentication
snmp off
listening endpoints summary...
(description=(address=(protocol=tcp)(host=192.168.0.10)(port=1521)))
(description=(address=(protocol=ipc)(key=extproc0)))
services summary...
service "test" has 2 instance(s).
instance "test", status unknown, has 1 handler(s) for this service...
instance "test", status ready, has 1 handler(s) for this service...
service "testxdb" has 1 instance(s).
instance "test", status ready, has 1 handler(s) for this service...
service "test_xpt" has 1 instance(s).
instance "test", status ready, has 1 handler(s) for this service...
the command completed successfully
可以看到監聽正常
3。tnsping連線正常
[ora10g@dbsvr admin]$ tnsping test
tns ping utility for linux: version 10.2.0.4.0 - production on 14-jun-2009 17:02:54
used parameter files:
used tnsnames adapter to resolve the alias
attempting to contact (description = (address = (protocol = tcp)(host = 192.168.0.10)(port = 1521)) (connect_data = (server = dedicated) (service_name = test)))
ok (0 msec)
資料庫再次連線正常，可能是例項動態註冊的過程，會有一小段時間延遲
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