Question

我遇到了3个不同环境中所有数据库的问题。数据库，监听器，同一本地机器上的应用程序。基本简单的listener.ora，tnsnames.ora，带有一个SID /服务名称。几年前我使用DBCA创建数据库，使用netca配置监听器等。

直到最近，这似乎没有大量的问题，但是有很多连接超时，套接字错误。听众似乎并没有保持稳定。

我可以开始听众;但是，在初始启动后，可能是状态，监听器挂起状态。有时听众会在一段时间后完成，但更多时候，我会贪图并杀死PID。

我注意到的两件事（sqlnet.ora和pfile init文件）缺失但不确定这是否是一个问题，因为这是一个正常运行的系统。我添加了两个，它似乎没有取得任何进展。

当然我可以直接连接到数据库但是当我通过监听器时出现错误：

bin]$ ./sqlplus sys/xxxx@cosga as sysdba
SQL*Plus: Release 11.2.0.1.0 Production on Mon Feb 27 22:21:39 2017
Copyright (c) 1982, 2009, Oracle.  All rights reserved.
ERROR:
ORA-12547: TNS:lost contact

LISTENER.ORA：

# listener.ora Network Configuration File: /app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = server fully qualifed)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )
ADR_BASE_LISTENER = /app/oracle

tnsnames.ora中：

# tnsnames.ora Network Configuration File: /app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
COSGA =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = server fullyqualified)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = cosga)
    )
  )

TNSPING

$ ./tnsping cosga
TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 27-FEB-2017 22:28:41
Copyright (c) 1997, 2009, Oracle.  All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = server fully qualified)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = cosga)))
TNS-12547: TNS:lost contact

ETC /主机：

127.0.0.1       localhost.localdomain localhost
xxx.xx.xxx.xxx  serverfullyqualified server

显示参数（删除可能不适用）：

SQL> show parameters;
audit_file_dest  /app/oracle/admin/cosga/adump
background_dump_dest  /app/oracle/diag/rdbms/cosga/cosga/trace
bitmap_merge_area_size  1048576
compatible  11.2.0.0.0
control_file_record_keep_time  7
control_files  /app/oracle/oradata/cosga/control01.ctl, /app/oracle/flash_recovery_area/cosga/control02.ctl
core_dump_dest  /app/oracle/diag/rdbms/cosga/cosga/cdump
create_bitmap_area_size   8388608
db_files      200
db_name   cosga
db_recovery_file_dest  /app/oracle/flash_recovery_area
db_recovery_file_dest_size  3882M
db_unique_name  cosga
dg_broker_config_file1  /app/oracle/product/11.2.0/dbhome_1/dbs/dr1cosga.dat
dg_broker_config_file2  /app/oracle/product/11.2.0/dbhome_1/dbs/dr2cosga.dat
diagnostic_dest  /app/oracle
dispatchers  (PROTOCOL=TCP) (SERVICE=cosgaXDB)
distributed_lock_timeout  60
hash_area_size    131072
ifile  file
instance_name  cosga
job_queue_processes  1000
max_enabled_roles  150
memory_max_target  7G
memory_target     7G
open_cursors      300
open_links    4
open_links_per_instance   4
processes     300
resource_manager_cpu_allocation  4
resumable_timeout  0
service_names  cosga
session_cached_cursors  50
session_max_open_files  10
sessions      472
sga_max_size      7G
sga_target    0
shared_pool_reserved_size 144284057
standby_archive_dest  ?/dbs/arch
transactions      519
transactions_per_rollback_segment   5
undo_tablespace  UNDOTBS1
user_dump_dest  /app/oracle/diag/rdbms/cosga/cosga/trace

状态监听器：

]$ ./lsnrctl status listener
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 27-FEB-2017 18:30:46
Copyright (c) 1991, 2009, Oracle.  All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=servername.fullyqualified)(PORT=1521)))
TNS-01153: Failed to process string: ����

有没有人有任何建议？此时它正在影响这家大公司的供应商申请。如果侦听器运行不正常，tomee服务器不会启动，但我们和供应商认为它是SLM接口性能和容量问题的来源。

有一次，这种方法运行得非常好，甚至可以通过dbora，apache，tomee等重启来自动启动。

Answer 1

您的侦听器日志文件可能太大。尝试重命名它，以代替它。

$ORACLE_BASE\diag\tnslsnr\<hostname>\listener\trace\<listener_name>.log

听众挂不上状态

1 个答案: