在Oracle的11g版本中，alert文件的位置发生了变化，与此同时Oracle提供了一个命令行工具ADRCI，它可以很便利的查看数据库中出现的异常。 通过这个小文儿给大家展示一下使用ADRCI (ADR Command Interface) 在11g中查看Oracle的警告日志的方法。
1.进入到adrci命令行模式
ora11g@RHEL53 /home/oracle$ which adrci
/oracle/u01/app/oracle/product/1101/db/bin/adrci
ora11g@RHEL53 /home/oracle$ adrci -help
Syntax:
adrci [-help] [script=script_filename]
[exec = "one_command [;one_command;...]"]
Options Description (Default)
------------------------------------------------------
script script. file name (None)
help help on the command options (None)
exec exec a set of commands (None)
------------------------------------------------------
ora11g@RHEL53 /home/oracle$ adrci
ADRCI: Release 11.1.0.6.0 - Beta on Fri Feb 27 15:23:52 2009
Copyright (c) 1982, 2007, Oracle. All rights reserved.
ADR base = "/oracle/u01/app/oracle"
adrci>
2.使用 help show alert 命令查看帮助文档
adrci> help
HELP [topic]
Available Topics:
CREATE REPORT
ECHO
EXIT
HELP
HOST
IPS
PURGE
RUN
SET BASE
SET BROWSER
SET CONTROL
SET ECHO
SET EDITOR
SET HOMES | HOME | HOMEPATH
SET TERMOUT
SHOW ALERT
SHOW BASE
SHOW CONTROL
SHOW HM_RUN
SHOW HOMES | HOME | HOMEPATH
SHOW INCDIR
SHOW INCIDENT
SHOW PROBLEM
SHOW REPORT
SHOW TRACEFILE
SPOOL
There are other commands intended to be used directly by Oracle, type
"HELP EXTENDED" to see the list
adrci> help show alert
Usage: SHOW ALERT [-p <predicate_string>] [-term]
[ [-tail [num] [-f]] | [-file <alert_file_name>] ]
Purpose: Show alert messages.
Options:
[-p <predicate_string>]: The predicate string must be double quoted.
The fields in the predicate are the fields:
ORIGINATING_TIMESTAMP timestamp
NORMALIZED_TIMESTAMP timestamp
ORGANIZATION_ID text(65)
COMPONENT_ID text(65)
HOST_ID text(65)
HOST_ADDRESS text(17)
MESSAGE_TYPE number
MESSAGE_LEVEL number
MESSAGE_ID text(65)
MESSAGE_GROUP text(65)
CLIENT_ID text(65)
MODULE_ID text(65)
PROCESS_ID text(33)
THREAD_ID text(65)
USER_ID text(65)
INSTANCE_ID text(65)
DETAILED_LOCATION text(161)
UPSTREAM_COMP_ID text(101)
DOWNSTREAM_COMP_ID text(101)
EXECUTION_CONTEXT_ID text(101)
EXECUTION_CONTEXT_SEQUENCE number
ERROR_INSTANCE_ID number
ERROR_INSTANCE_SEQUENCE number
MESSAGE_TEXT text(2049)
MESSAGE_ARGUMENTS text(129)
SUPPLEMENTAL_ATTRIBUTES text(129)
SUPPLEMENTAL_DETAILS text(129)
PROBLEM_KEY text(65)
[-tail [num] [-f]]: Output last part of the alert messages and
output latest messages as the alert log grows. If num is not specified,
the last 10 messages are displayed. If "-f" is specified, new data
will append at the end as new alert messages are generated.
[-term]: Direct results to terminal. If this option is not specified,
the results will be open in an editor.
By default, it will open in emacs, but "set editor" can be used
to set other editors.
[-file <alert_file_name>]: Allow users to specify an alert file which
may not be in ADR. <alert_file_name> must be specified with full path.
Note that this option cannot be used with the -tail option
Examples:
show alert
show alert -p "message_text like '%incident%'"
show alert -tail 20
adrci>
3.使用 show alert 列出各个目录下的日志目录，输入编号4，系统会自动调用vi编辑器查看数据库的alert日志
adrci> show alert
Choose the alert log from the following homes to view:
1: diag/tnslsnr/RHEL53/listener
2: diag/clients/user_unknown/host_411310321_11
3: diag/clients/user_oracle/host_2175824367_11
4: diag/rdbms/ora11g/ora11g
Q: to quit
Please select option:4
4.另外一种查看方式是，指定具体的 homepath 然后使用“show alert -tail 15”查看对应日志文件的后15行
adrci> show homepath
ADR Homes:
diag/tnslsnr/RHEL53/listener
diag/clients/user_unknown/host_411310321_11
diag/clients/user_oracle/host_2175824367_11
diag/rdbms/ora11g/ora11g
adrci> set homepath diag/rdbms/ora11g/ora11g
adrci> show alert -tail 15
2009-02-27 14:25:05.036000 +08:00
Starting background process SMCO
SMCO started with pid=21, OS id=3855
Starting background process FBDA
FBDA started with pid=22, OS id=3857
replication_dependency_tracking turned off (no async multimaster replication found)
2009-02-27 14:25:07.246000 +08:00
Starting background process QMNC
QMNC started with pid=23, OS id=3859
2009-02-27 14:25:17.325000 +08:00
db_recovery_file_dest_size of 4096 MB is 0.00% used. This is a
user-specified limit on the amount of space that will be used by this
database for recovery-related files, and does not reflect the amount of
space available in the underlying filesystem or ASM diskgroup.
2009-02-27 14:25:33.727000 +08:00
Completed: ALTER DATABASE OPEN
2009-02-27 14:29:59.158000 +08:00
Starting background process CJQ0
CJQ0 started with pid=25, OS id=3892
adrci>
5.小结
使用ADRCI命令可以很好的对各个目录中的日志文件进行集中查看，可以有效的提高工作效率，赞一个，在高度紧张的问题处理环境中这个工具可以有效的提高问题诊断的效率。
============
#ADRCI
11G new feature
Automatic Diagnostic Repository Command-Interpreter
ADRCI工具是Oracle11g才推出的新工具，主要用来管理alert文件、trace文件、dump文件、健康监事报告等。
11g中alert,trace文件的位置发生了变化, 从原来的ORACLE_BASE/admin/INSTANCE_NAME目录变成了ORACLE_BASE/diag/rdbms/DBNAME/INSTANCE_NAME目录。
Oracle之所以修改了这个跨越多个版本都没有修改过的参数设置，就是因为Oracle在11g中推出了ADRCI。这个工具可以统一管理ASM实例和多个数据库实例的alert文件、后台trace文件、用户trace文件，dump文件等等。
而且这个工具可以快速查询错误相关的所有trace文件，并将这些文件打包到一个zip文件，以便将问题相关的信息提供给Oracle的技术支持。
下面是adrci 的一些快速学习的事项
0. 注意事项, 知识快速整理.
1. 定位problem,incident
2. 定位tracefile (user trace file, alert log file)
3. 生成package
0. 注意事项, 知识快速整理.
show alert -tail -f 相关操作的时候需要先
set home 因为adrci是多目录操作不然会报错 DIA-48449: Tail alert can only apply to single ADR home 这是为了保证在多实例下不至于造成混乱。
adrci 也支持spool
adrci 是基于一个叫做fault diagnosability infrastructure(错误诊断框架), 这样一个底层框架的, 核心的思想就是, 通过problem和incident来定位错误。
problem 和 incident 是一种相辅相成的关系, problem指的是大的问题,叫criticial error, 一个大问题会由很多小的incidents所导致。所以他们是1:n的关系.
而problem 的数据都预先定义在v$diag_critical_error了(应该是,猜的)
adrci> show incident
ADR Home = /u01/app/oracle/diag/rdbms/opt/opt:
*************************************************************************
INCIDENT_ID PROBLEM_KEY CREATE_TIME
-------------------- ----------------------------------------------------------- ----------------------------------------
121 ORA 4031 2010-08-17 14:49:59.384000 +08:00
209 ORA 4031 2010-08-17 14:50:25.980000 +08:00
2 rows fetched
adrci>
adrci>
adrci> show problem
ADR Home = /u01/app/oracle/diag/rdbms/opt/opt:
*************************************************************************
PROBLEM_ID PROBLEM_KEY LAST_INCIDENT LASTINC_TIME
-------------------- ----------------------------------------------------------- -------------------- ----------------------------------------
1 ORA 4031 209 2010-08-17 14:50:25.980000 +08:00
1 rows fetched
--- 很容易看到一个04031对应了: 209，121，2个事件
1. 如何identified 这以上的problem和incident的tracefile所在位置呢。
1. 先说problem, problem都是记录在alert里的, 一般是放在$ORACLE_BASE/diag/rdbms/$DBNAME/$ORACLE_SID/trace/alert_SID.log,
可以手动去找, 不过adrci提供了更高效的方式, 直接吧04031那段记录在TMP文件里。获取的命令是:
show alert -p "message_text like '%ORA-04031%'" #详细
show problem -p "problem_id=1" # 看某一个problem
2. incident 相关:
# INCIDENT_FILE 显示了tracefile的位置。
show incident -MODE DETAIL -p "incident_id=121"
2. 定位tracefile (user trace file, alert log file)
# This example shows all trace files for incidents 1 and 4, under the path /home/steve/temp:
show tracefile %mmon% -rt
# This example shows all trace files for incidents 1 and 4, under the path /home/steve/temp:
show tracefile -i 1 4 -path /home/steve/temp
4. 生成 package
set homepath diag/rdbms/opt/opt
方法一
ips pack problem 1
方法二
# Created package 8 without any contents, correlation level typical
ips create package
Added problem 1 to package 8
ips add incident 121 package 8
ips add incident 209 package 8
ips add file /u01/app/oracle/diag/rdbms/opt/opt/trace/opt_dbrm_5035.trc package 8
ips generate package 8
adrci> ips get metadata from file /home/oracle/script/IPSPKG_20110220163312_COM_1.zip
IPS metadata from file /home/oracle/script/IPSPKG_20110220163312_COM_1.zip:
----------------------------------------------------------
<?xml version="1.0" encoding="US-ASCII"?>
<PACKAGE>
<PACKAGE_ID>8</PACKAGE_ID>
<PACKAGE_NAME>IPSPKG_20110220163312</PACKAGE_NAME>
<MODE>Complete</MODE>
<SEQUENCE>1</SEQUENCE>
<LAST_COMPLETE>1</LAST_COMPLETE>
<DATE>2011-02-20 16:37:55.035301 +08:00</DATE>
<ADR_BASE>/u01/app/oracle</ADR_BASE>
<ADR_HOME>/u01/app/oracle/diag/rdbms/opt/opt</ADR_HOME>
<PROD_NAME>rdbms</PROD_NAME>
<PROD_ID>opt</PROD_ID>
<INST_ID>opt</INST_ID>
<OCM_GUID/>
<FINALIZED>1</FINALIZED>
</PACKAGE>
----------------------------------------------------------
ips unpack file /home/oracle/IPSPKG_20090215012523_COM_1.zip into /home/oracle
