11g新特性:A useful View V$DIAG_INFO

在11g中引入了自动诊断资料档案库(ADR)特性,默认情况下各种trace,dump存放的目录位置区别于9i/10g显得更加难以查找了。

ADR 基目录中可以包含多个 ADR 主目录,其中每个 ADR 主目录都是一个根目录,用于存放特定 Oracle 产品或组件的特定实例的全部诊断数据。前一张幻灯片的图形中显示了数据库的 ADR 主目录位置。

另外,还生成了两个预警文件。一个是文本形式的预警文件(与早期版本 Oracle DB 使用的预警文件非常相似),位于各个 ADR 主目录的 TRACE 目录下。还有一个符合 XML 标准的预警消息文件,存储在 ADR 主目录内的 ALERT 子目录下。可使用 Enterprise Manager 和 ADRCI 实用程序查看文本格式的预警日志(已删除了 XML 标记)。

此幻灯片中的图形显示了 ADR 主目录的目录结构。INCIDENT 目录包含多个子目录, 每个子目录均以特定意外事件命名,并且仅包含与该意外事件相关的转储。

HM 目录包含由健康状况监视器生成的检查器运行报告。

还有一个 METADATA 目录,其中包含资料档案库自身的重要文件。可以将此目录比作数据库字典。可使用 ADRCI 查询此字典。

ADR 命令解释器 (ADRCI) 是一个实用程序,可用于执行支持工作台允许的所有任务(但是仅限于在命令行环境中)。使用 ADRCI 实用程序,您还可以查看 ADR 中跟踪文件的名称以及删除了 XML 标记、具有和不具有内容筛选功能的预警日志。

此外,还可以使用 V$DIAG_INFO 列出一些重要的 ADR 位置。

自动诊断资料档案库 (ADR)的主要目录结构:

1.Server Directory Structure

adr1

2.Client Directory Structure

adr2

一个需要注意的细节是启用了ADR自动诊断资料档案库后,LISTENER监听器日志的默认位置也被移动到diagnostic_dest下了,而不在如9i/10g那样存放在$ORACLE_HOME/network/log目录下,有不少人因为忘记了这个细节而花费了大量时间去寻找listener.log,这个人也包括我。实际上我们还是可以将listener.log日志的位置还原回10g的形式,这一点可以通过修改$ORACLE_HOME/network/admin/listener.ora来达成:

[oracle@rh2 ~]$ cd $ORACLE_HOME/network/admin

[oracle@rh2 admin]$ cat listener.ora
# listener.ora Network Configuration File: /s01/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

LISTENER =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = rh2.oracle.com)(PORT = 1521))
  )

ADR_BASE_LISTENER = /s01/orabase

将以上listener.ora文件的ADR_BASE_LISTENER条目删除,并加上

DIAG_ADR_ENABLED_LISTENER = OFF

[oracle@rh2 log]$ lsnrctl reload

[oracle@rh2 admin]$ tnsping PROD
TNS Ping Utility for Linux: Version 11.2.0.2.0 - Production on 30-MAY-2011 21:39:21
Copyright (c) 1997, 2010, Oracle.  All rights reserved.
Used parameter files:
/s01/oracle/product/11.2.0/dbhome_1/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = rh-cluster-scan)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = PROD)))
OK (0 msec)

[oracle@rh2 log]$ cat $ORACLE_HOME/network/log/listener.log

TNSLSNR for Linux: Version 11.2.0.2.0 - Production on 30-MAY-2011 21:42:52

Copyright (c) 1991, 2010, Oracle.  All rights reserved.

System parameter file is /s01/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /s01/oracle/product/11.2.0/dbhome_1/network/log/listener.log
Trace information written to /s01/oracle/product/11.2.0/dbhome_1/network/trace/listener.trc
Trace level is currently 6
Started with pid=24331
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=rh2)(PORT=1521)))
Listener completed notification to CRS on start

TIMESTAMP * CONNECT DATA [* PROTOCOL INFO] * EVENT [* SID] * RETURN CODE
30-MAY-2011 21:42:53 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=rh2.oracle.com)(USER=oracle))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LISTENER)(VERSION=186647040)) * status * 0
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.122)(PORT=1521)))
30-MAY-2011 21:42:59 * service_register * PROD1 * 12542
TNS-12542: TNS:address already in use
 TNS-12560: TNS:protocol adapter error
  TNS-00512: Address already in use
   Linux Error: 98: Address already in use
Error listening on: (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.133)(PORT=1521)))
30-MAY-2011 21:42:59 * service_register * PROD1 * 12542
TNS-12542: TNS:address already in use
 TNS-12560: TNS:protocol adapter error
  TNS-00512: Address already in use
   Linux Error: 98: Address already in use
30-MAY-2011 21:43:02 * service_update * PROD1 * 0
30-MAY-2011 21:43:02 * service_update * PROD1 * 0
30-MAY-2011 21:43:37 * service_register * G10R2 * 0
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.122)(PORT=1521)))
30-MAY-2011 21:43:39 * service_register * +ASM1 * 12542
TNS-12542: TNS:address already in use
 TNS-12560: TNS:protocol adapter error
  TNS-00512: Address already in use
   Linux Error: 98: Address already in use

从以上ADR目录结构图中可以看到整个架构变得更复杂了,实际使用中的ADR档案资料库的复杂度要更高:

[grid@rh2 raw]$ tree -d  /s01/orabase/diag
/s01/orabase/diag
|-- asm
|   `-- +asm
|       `-- +ASM1
|           |-- alert
|           |-- cdump
|           |-- hm
|           |-- incident
|           |   |-- incdir_4897
|           |   |-- incdir_4898
|           |   |-- incdir_4899
|           |   |-- incdir_4900
|           |   |-- incdir_4901
|           |   |-- incdir_4902
|           |   `-- incdir_4903
|           |-- incpkg
|           |-- ir
|           |-- lck
|           |-- metadata
|           |-- metadata_dgif
|           |-- metadata_pv
|           |-- stage
|           |-- sweep
|           `-- trace
|               |-- cdmp_20110424212230
|               |-- cdmp_20110424214914
|               |-- cdmp_20110424220022
|               |-- cdmp_20110424221131
|               |-- cdmp_20110424222254
|               |-- cdmp_20110424223546
|               `-- cdmp_20110427154653
|-- clients
|   `-- user_oracle
|       `-- host_3070836769_80
|           |-- alert
|           |-- cdump
|           |-- incident
|           |-- incpkg
|           |-- lck
|           |-- metadata
|           |-- metadata_dgif
|           |-- metadata_pv
|           |-- stage
|           |-- sweep
|           `-- trace
|-- crs
|-- diagtool
|-- lsnrctl
|-- netcman
|-- ofm
|-- rdbms
|   |-- maclean
|   |   `-- MACLEAN
|   |       |-- alert
|   |       |-- cdump
|   |       |-- hm
|   |       |-- incident
|   |       |-- incpkg
|   |       |-- ir
|   |       |-- lck
|   |       |-- metadata
|   |       |-- metadata_dgif
|   |       |-- metadata_pv
|   |       |-- stage
|   |       |-- sweep
|   |       `-- trace
|   `-- prod
|       `-- PROD1
|           |-- alert
|           |-- cdump
|           |   |-- core_27975
|           |   |-- core_28006
|           |   |-- core_28013
|           |   `-- core_28034
|           |-- hm
|           |-- incident
|           |   |-- incdir_100831
|           |   |-- incdir_104831
|           |   |-- incdir_108831
|           |   |-- incdir_18201
|           |   |-- incdir_18202
|           |   |-- incdir_18266
|           |   |-- incdir_18361
|           |   |-- incdir_18362
|           |   |-- incdir_18369
|           |   |-- incdir_18385
|           |   |-- incdir_18387
|           |   |-- incdir_18393
|           |   |-- incdir_18402
|           |   |-- incdir_18410
|           |   |-- incdir_18411
|           |   |-- incdir_18441
|           |   |-- incdir_18457
|           |   |-- incdir_18458
|           |   |-- incdir_18465
|           |   |-- incdir_19737
|           |   |-- incdir_19738
|           |   |-- incdir_19739
|           |   |-- incdir_19745
|           |   |-- incdir_19746
|           |   |-- incdir_20589
|           |   |-- incdir_20701
|           |   |-- incdir_20736
|           |   |-- incdir_20737
|           |   |-- incdir_20738
|           |   |-- incdir_20739
|           |   |-- incdir_20740
|           |   |-- incdir_20957
|           |   |-- incdir_20973
|           |   |-- incdir_20989
|           |   |-- incdir_21005
|           |   |-- incdir_21778
|           |   |-- incdir_21936
|           |   |-- incdir_21937
|           |   |-- incdir_21938
|           |   |-- incdir_22200
|           |   |-- incdir_22201
|           |   |-- incdir_22216
|           |   |-- incdir_22232
|           |   |-- incdir_22233
|           |   |-- incdir_23306
|           |   |-- incdir_23506
|           |   |-- incdir_28123
|           |   |-- incdir_28147
|           |   |-- incdir_28148
|           |   |-- incdir_28227
|           |   |-- incdir_28228
|           |   |-- incdir_28229
|           |   |-- incdir_28230
|           |   |-- incdir_28235
|           |   |-- incdir_29323
|           |   |-- incdir_29324
|           |   |-- incdir_29325
|           |   |-- incdir_29326
|           |   |-- incdir_29327
|           |   |-- incdir_30681
|           |   |-- incdir_30682
|           |   |-- incdir_30683
|           |   |-- incdir_31724
|           |   |-- incdir_35253
|           |   |-- incdir_36453
|           |   |-- incdir_37653
|           |   |-- incdir_38853
|           |   |-- incdir_40053
|           |   |-- incdir_41253
|           |   |-- incdir_42453
|           |   |-- incdir_43653
|           |   |-- incdir_44853
|           |   |-- incdir_46053
|           |   |-- incdir_47253
|           |   |-- incdir_48453
|           |   |-- incdir_49653
|           |   |-- incdir_54525
|           |   |-- incdir_56918
|           |   |-- incdir_89183
|           |   |-- incdir_89184
|           |   |-- incdir_89185
|           |   |-- incdir_89186
|           |   |-- incdir_89187
|           |   |-- incdir_89327
|           |   |-- incdir_89343
|           |   |-- incdir_89351
|           |   |-- incdir_89359
|           |   |-- incdir_90270
|           |   |-- incdir_90271
|           |   |-- incdir_90272
|           |   |-- incdir_90273
|           |   |-- incdir_90274
|           |   |-- incdir_90275
|           |   `-- incdir_96831
|           |-- incpkg
|           |   `-- pkg_1
|           |       `-- seq_1
|           |           |-- crs
|           |           `-- export
|           |-- ir
|           |-- lck
|           |-- metadata
|           |-- metadata_dgif
|           |-- metadata_pv
|           |-- stage
|           |-- sweep
|           `-- trace
|               |-- cdmp_20110502214850
|               |-- cdmp_20110502214947
|               |-- cdmp_20110502221010
|               |-- cdmp_20110502221029
|               |-- cdmp_20110502221204
|               |-- cdmp_20110502221221
|               |-- cdmp_20110502221257
|               |-- cdmp_20110502221318
|               |-- cdmp_20110502221450
|               |-- cdmp_20110502221505
|               |-- cdmp_20110502222225
|               |-- cdmp_20110502222315
|               |-- cdmp_20110502222402
|               |-- cdmp_20110502224708
|               |-- cdmp_20110502230815
|               |-- cdmp_20110503202436
|               |-- cdmp_20110503202521
|               |-- cdmp_20110509231250
|               |-- cdmp_20110512171047
|               |-- cdmp_20110512171231
|               |-- cdmp_20110512171437
|               |-- cdmp_20110512171635
|               |-- cdmp_20110520165537
|               |-- cdmp_20110520232601
|               |-- cdmp_20110520234343
|               |-- cdmp_20110521000119
|               |-- cdmp_20110521000218
|               |-- cdmp_20110521065437
|               |-- cdmp_20110521065455
|               |-- cdmp_20110521065512
|               |-- cdmp_20110521074224
|               |-- cdmp_20110521074737
|               |-- cdmp_20110521075206
|               |-- cdmp_20110521080019
|               |-- cdmp_20110521080642
|               |-- cdmp_20110521140052
|               |-- cdmp_20110530202441
|               |-- cdmp_20110530202442
|               |-- cdmp_20110530202846
|               |-- cdmp_20110530202848
|               |-- cdmp_20110530202916
|               |-- cdmp_20110530202918
|               |-- cdmp_20110530203156
|               `-- cdmp_20110530203158
`-- tnslsnr
    `-- rh2
        `-- listener
            |-- alert
            |-- cdump
            |-- incident
            |-- incpkg
            |-- lck
            |-- metadata
            |-- metadata_dgif
            |-- metadata_pv
            |-- stage
            |-- sweep
            `-- trace

240 directories

所幸的是在11g中提供了比传统的gettrcname.sql脚本更为给力的诊断文件位置信息汇总的视图V$DIAG_INFO:

V$DIAG_INFO 视图列出了所有重要的 ADR 位置:
ADR Base:ADR 基目录的路径
ADR Home:当前数据库实例的 ADR 主目录的路径
Diag Trace:文本预警日志和后台/前台进程跟踪文件的位置
Diag Alert:XML 版本的预警日志的位置
Default Trace File:会话的跟踪文件的路径。SQL 跟踪文件将写入到这里。
Health Monitor: 健康检查报告所在目录
Active Problem Count:当前激活的问题总数
Active Incident Count  当前激活的事故总数

SQL>  select name,value from v$diag_info;

NAME                                    VALUE
--------------------------------------- ------------------------------------------------------------
Diag Enabled                            TRUE
ADR Base                                /s01/orabase
ADR Home                                /s01/orabase/diag/rdbms/prod/PROD1
Diag Trace                              /s01/orabase/diag/rdbms/prod/PROD1/trace
Diag Alert                              /s01/orabase/diag/rdbms/prod/PROD1/alert
Diag Incident                           /s01/orabase/diag/rdbms/prod/PROD1/incident
Diag Cdump                              /s01/orabase/diag/rdbms/prod/PROD1/cdump
Health Monitor                          /s01/orabase/diag/rdbms/prod/PROD1/hm
Default Trace File                      /s01/orabase/diag/rdbms/prod/PROD1/trace/PROD1_ora_22893.trc
Active Problem Count                    7
Active Incident Count                   373

11 rows selected.

adrci> show hm_run
**********************************************************
HM RUN RECORD 119
**********************************************************
   RUN_ID                        2481
   RUN_NAME                      HM_RUN_2481
   CHECK_NAME                    DB Structure Integrity Check
   NAME_ID                       2
   MODE                          2
   START_TIME                    2011-05-21 20:11:38.612669 +08:00
   RESUME_TIME
   END_TIME                      2011-05-21 20:11:38.619530 +08:00
   MODIFIED_TIME                 2011-05-21 20:11:38.619530 +08:00
   TIMEOUT                       0
   FLAGS                         0
   STATUS                        5
   SRC_INCIDENT_ID               0
   NUM_INCIDENTS                 0
   ERR_NUMBER                    0
   REPORT_FILE                   

adrci> create report hm_run HM_RUN_2481

adrci> show hm_run  -p "RUN_ID=2481"

ADR Home = /s01/orabase/diag/rdbms/prod/PROD1:
*************************************************************************

**********************************************************
HM RUN RECORD 1
**********************************************************
   RUN_ID                        2481
   RUN_NAME                      HM_RUN_2481
   CHECK_NAME                    DB Structure Integrity Check
   NAME_ID                       2
   MODE                          2
   START_TIME                    2011-05-21 20:11:38.612669 +08:00
   RESUME_TIME
   END_TIME                      2011-05-21 20:11:38.619530 +08:00
   MODIFIED_TIME                 2011-05-30 21:09:43.071150 +08:00
   TIMEOUT                       0
   FLAGS                         0
   STATUS                        5
   SRC_INCIDENT_ID               0
   NUM_INCIDENTS                 0
   ERR_NUMBER                    0
   REPORT_FILE                   /s01/orabase/diag/rdbms/prod/PROD1/hm/HMREPORT_HM_RUN_2481.hm

[oracle@rh2 ~]$ cd /s01/orabase/diag/rdbms/prod/PROD1/hm

[oracle@rh2 hm]$ cat HMREPORT_HM_RUN_2481.hm

<?xml version="1.0" encoding="US-ASCII"?>
<HM-REPORT REPORT_ID="HM_RUN_2481">
 <TITLE>HM Report: HM_RUN_2481</TITLE>
 <RUN_INFO>
 <CHECK_NAME>DB Structure Integrity Check</CHECK_NAME>
 <RUN_ID>2481</RUN_ID>
 <RUN_NAME>HM_RUN_2481</RUN_NAME>
 <RUN_MODE>REACTIVE</RUN_MODE>
 <RUN_STATUS>COMPLETED</RUN_STATUS>
 <RUN_ERROR_NUM>0</RUN_ERROR_NUM>
 <SOURCE_INCIDENT_ID>0</SOURCE_INCIDENT_ID>
 <NUM_INCIDENTS_CREATED>0</NUM_INCIDENTS_CREATED>
 <RUN_START_TIME>2011-05-21 20:11:38.612669 +08:00</RUN_START_TIME>
 <RUN_END_TIME>2011-05-21 20:11:38.619530 +08:00</RUN_END_TIME>
 </RUN_INFO>
 <RUN_PARAMETERS/>
 <RUN-FINDINGS/>
</HM-REPORT>

通过查询V$diag_info可以很容易找到自身服务进程的trace文件位置,对于其他进程的trace文件则可以查询v$process新加入的tracefile列:

SQL> select spid,tracefile from v$process;

SPID                     TRACEFILE
------------------------ --------------------------------------------------------------------------------
                         /s01/orabase/diag/rdbms/prod/PROD1/trace/PROD1_ora_0.trc
22789                    /s01/orabase/diag/rdbms/prod/PROD1/trace/PROD1_pmon_22789.trc
22791                    /s01/orabase/diag/rdbms/prod/PROD1/trace/PROD1_psp0_22791.trc

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