您好,登錄后才能下訂單哦!
今天就跟大家聊聊有關Oracle RAC環境的日志體系是什么,可能很多人都不太了解,為了讓大家更加了解,小編給大家總結了以下內容,希望大家根據這篇文章可以有所收獲。
在Oracle RAC環境中比單個系統的日志體系要復雜:見下圖:
簡單介紹一下有關Oracle集群環境中日志體系結構,在遇到問題時,可以快速查找所需的日志文件,及時的定位問題~
1.Oracle集群日志的文件路徑
Oracle集群涉及的日志主要位于“$GRID_HOME/log”和“$ORACLE_HOME/log”目錄中。
2.日志目錄結構
clusterware 層的日志結構:
grid@rac1:/home/grid>tree -d $ORACLE_HOME/log
/opt/rac/11.2.0/grid/log
|-- crs
|-- diag
| `-- clients
| `-- user_root
| `-- host_1874443374_76
| |-- alert
| |-- cdump
| |-- incident
| |-- incpkg
| |-- lck
| |-- metadata
| |-- stage
| |-- sweep
| `-- trace
`-- rac1
|-- admin
|-- agent
| |-- crsd
| | |-- oraagent_grid
| | |-- oraagent_oracle
| | `-- orarootagent_root
| `-- ohasd
| |-- oraagent_grid
| |-- oracssdagent_root
| |-- oracssdmonitor_root
| `-- orarootagent_root
|-- client
|-- crsd
|-- cssd
|-- ctssd
|-- diskmon
|-- evmd
|-- gipcd
|-- gnsd
|-- gpnpd
|-- mdnsd
|-- ohasd
|-- racg
| |-- racgeut
| |-- racgevtf
| `-- racgmain
`-- srvm
42 directories
RMDBS 層的日志結構:
oracle@rac1:/opt/rac/oracle/diag/rdbms/rac>tree -d rac1
rac1
|-- alert
|-- cdump
|-- hm
|-- incident
|-- incpkg
|-- ir
|-- lck
|-- metadata
|-- stage
|-- sweep
`-- trace
11 directories
其中“rac1”是主機名。
3.日志目錄功能說明
1)CRS日志存放在“$GRID_HOME/log/<hostname>/crsd”目錄,系統會對該日志每10M進行歸檔一次;
2)CSS日志存放在“$GRID_HOME/log/<hostname>/cssd”目錄,系統會對該日志每20M進行歸檔一次;
3)EVM日志存放在“$GRID_HOME/log/<hostname>/evmd”目錄;
4)“$GRID_HOME/log/<hostname>”和“$ORACLE_HOME/log/<hostname>”目錄中的racg目錄中記錄了RACG可執行文件對應的日志;
5)“$GRID_HOME/log/<hostname>/client”和“$ORACLE_HOME/log/<hostname>/client”目錄記錄了與srvctl、ocrdump、ocrconfig以及ocrcheck命令對應的日志信息。
4.Oracle集群的alert日志
Oracle RAC環境中的alert日志文件與Oracle單實例的alert日志一樣。該文件位于“在 $ORACLE_BASE/rdbms/<hostname>/trace”目錄下,命名規則為“alert_<nodename>.log”
該警告日志記錄了有關Oracle集群rdbms 層面的重要警告信息。
oracle@rac1:/opt/rac/oracle/diag/rdbms/rac/rac1/trace>more alert_rac1.log
Starting up:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options.
Using parameter settings in client-side pfile /opt/rac/oracle/admin/rac/pfile/init.ora on machine rac1
System parameters with non-default values:
processes = 150
nls_language = "SIMPLIFIED CHINESE"
nls_territory = "CHINA"
memory_target = 1584M
control_files = "+DATA2/rac/controlfile/current.260.781821965"
db_block_size = 8192
compatible = "11.2.0.0.0"
log_archive_dest_1 = "LOCATION=+DATA2"
log_archive_format = "yangdb_%t_%s_%r.dbf"
db_create_file_dest = "+DATA2"
undo_tablespace = "UNDOTBS1"
instance_number = 1
remote_login_passwordfile= "EXCLUSIVE"
db_domain = ""
dispatchers = "(PROTOCOL=TCP) (SERVICE=racXDB)"
remote_listener = "scan:1521"
audit_file_dest = "/opt/rac/oracle/admin/rac/adump"
audit_trail = "DB"
db_name = "rac"
open_cursors = 300
diagnostic_dest = "/opt/rac/oracle"
Cluster communication is configured to use the following interface(s) for this instance
10.10.10.10
cluster interconnect IPC version:Oracle UDP/IP (generic)
IPC Vendor 1 proto 2
Sat Apr 28 20:50:38 2012
PMON started with pid=2, OS id=16042
Sat Apr 28 20:50:38 2012
VKTM started with pid=3, OS id=16044 at elevated priority
VKTM running at (10)millisec precision with DBRM quantum (100)ms
Sat Apr 28 20:50:39 2012
GEN0 started with pid=4, OS id=16048
Sat Apr 28 20:50:39 2012
DIAG started with pid=5, OS id=16050
Sat Apr 28 20:50:39 2012
DBRM started with pid=6, OS id=16052
5.小結
熟悉Oracle集群環境下日志文件的位置和功能有助于快速定位故障的位置,善用之。
ORA-29780: unable to connect GPnP daemon [CLSGPNP_ERR]
安裝完成 11GR2 Grid 之后,使用asmca創建磁盤組的時候遇到如下報錯:
Started getting following error
ORA-29780: unable to connect to GPnP daemon [CLSGPNP_ERR]
google 一把 和環境變量有關:(CRS/GRID 是運行正常的).
grid@rac1 /oragrid/dbs> env | grep ORA
GRID_HOME=/opt/11.2.0/grid <====== 從老的bash_profle 中繼承的!
ORACLE_SID=+ASM1
ORACLE_BASE=/opt/rac/grid
ORACLE_HOME=/opt/rac/11.2.0/grid
$GRID_HOME變量必須和$ORACLE_HOME 保持一致,否則在使用asmca創建磁盤的時候 會認不到asm 磁盤!
看完上述內容,你們對Oracle RAC環境的日志體系是什么有進一步的了解嗎?如果還想了解更多知識或者相關內容,請關注億速云行業資訊頻道,感謝大家的支持。
免責聲明:本站發布的內容(圖片、視頻和文字)以原創、轉載和分享為主,文章觀點不代表本網站立場,如果涉及侵權請聯系站長郵箱:is@yisu.com進行舉報,并提供相關證據,一經查實,將立刻刪除涉嫌侵權內容。