ERROR

一套Linux上的11.2.0.2 RAC系统，其中一个节点startup mount时出现ORA-19808错误，日志如下：


SQL> alter database mount;
alter database mount
*
ERROR at line 1:
ORA-01105: mount is incompatible with mounts by other instances
ORA-19808: recovery destination parameter mismatch


SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options


[oracle@rh3 ~]$ oerr ora 19808
19808, 00000, "recovery destination parameter mismatch"
// *Cause:  The value of parameters DB_RECOVERY_FILE_DEST and
//          DB_RECOVERY_FILE_DEST_SIZE must be same in all instances.
//          instance. All databases must have same recovery destination
//          parameters.
// *Action: Check DB_RECOVERY_FILE_DEST and DB_RECOVERY_FILE_DEST_SIZE
//          values in all instances.

SQL> col name for a30
SQL> col value for a30

SQL> select name ,value,inst_id from gv$system_parameter  where name='db_recovery_file_dest_size';

NAME                           VALUE                             INST_ID
------------------------------ ------------------------------ ----------
db_recovery_file_dest_size     0                                       1
db_recovery_file_dest_size     42278584320                             2

该错误是由于启动节点使用了pfile形式的参数文件，而该参数文件中的db_recovery_file_dest_size值与已经启动的另一个节点的db_recovery_file_dest_size不一致所造成。

如果使用共享的server parameter file则不可能出现上述情况，当然也可以通过在启动节点上修改db_recovery_file_dest_size来解决问题。

晚上有兴趣测试了下Goldengate的initial load功能，通过initial load+change sync可以很容易做到数据迁移data migration；不过发现一个令人很郁闷的细节，就是replicat的params中定义map参数时TARGET到前面一个逗号间要留一个空格space:

MAP table spec, TARGET table spec     
/*TARGET到前面一个逗号间要留一个空格space*/
[, DEF ]
[, TARGETDEF ]
[, COLMAP ()]
[, EVENTACTIONS ()]
[, EXCEPTIONSONLY]
[, EXITPARAM “”]
[, FILTER ()]
[, HANDLECOLLISIONS | NOHANDLECOLLISIONS]
[, INSERTALLRECORDS]
[, INSERTAPPEND | NOINSERTAPPEND]
[, KEYCOLS ()]
[, REPERROR ( , )]
[, SQLEXEC ()]
[, TRIMSPACES | NOTRIMSPACES]
[, WHERE ()]
;

如果map参数中target和前面的逗号间没有空格会出现invaild option for map错误:

GGSCI (rh2.oracle.com) 32> view params init1
extract init1
userid ggate,password ggate
RMTHOST rh3.oracle.com,MGRPORT 7809
RMTTASK replicat,GROUP  init3
table sh.products;

GGSCI (rh3.oracle.com) 40> view params init3

replicat init3
userid ggate,password ggate
ASSUMETARGETDEFS
map sh.products,target sh.products;

GGSCI (rh2.oracle.com) 33> start extract init1

Sending START request to MANAGER ...
EXTRACT INIT1 starting

GGSCI (rh3.oracle.com) 41> view report init3
..............
MAP resolved (entry SH.PRODUCTS):
  map SH.PRODUCTS, sh.products;

Source Context :
  SourceModule            : [er.main]
  SourceID                : [/home/ecloud/workspace/Build_FBO_OpenSys_r11.1.1.0.0_078_[34093]/perforce/src/app/er/rep.c]
  SourceFunction          : [get_map_entry]
  SourceLine              : [8573]
  ThreadBacktrace         : [11] elements
                          : [./replicat(CMessageContext::AddThreadContext()+0x26) [0x5d9516]]
                          : [./replicat(CMessageFactory::CreateMessage(CSourceContext*, unsigned int, ...)+0x7b2) [0x5cffb2]]
                          : [./replicat(_MSG_ERR_STARTUP_PARAMERROR_INVALID_OPTION_VALUE
(CSourceContext*, char const*, char const*, CMessageFactory::MessageDisposition)
+0x9b) [0x59086b]]
                          : [./replicat(get_map_entry(char*, int, __wc*, int)+0x284d) [0x4ee66d]]
                          : [./replicat [0x5357d5]]
                          : [./replicat(WILDCARD_check_table(char const*, char const*, int, 
unsigned int*, int, unsigned int, DBString<777>*, int)+0x15e) [0x536fce]]
                          : [./replicat(REP_find_source_file_wc(char const*, unsigned int, DBString<777>*, int)+0x64f) [0x8a1caf]]
                          : [./replicat [0x8a9b04]]
                          : [./replicat(main+0x227a) [0x4f50da]]
                          : [/lib64/libc.so.6(__libc_start_main+0xf4) [0x340d01d994]]
                          : [./replicat(__gxx_personality_v0+0x1e2) [0x4d86ba]]

2010-12-01 08:58:30  ERROR   OGG-00212  Invalid option for MAP: sh.products.

/*我们来加上空格*/

GGSCI (rh3.oracle.com) 43> view params init3
replicat init3
userid ggate,password ggate
ASSUMETARGETDEFS
map sh.products, target sh.products;

GGSCI (rh3.oracle.com) 43> view report init3
MAP resolved (entry SH.PRODUCTS):
  map SH.PRODUCTS, target sh.products;

2010-12-01 09:00:30  WARNING OGG-00869  No unique key is defined for table PRODUCTS. 
All viable columns will be used to represent the key, but may not guarantee uniqueness.  
KEYCOLS may be used to define the key.
Using following columns in default map by name:
  PROD_ID, PROD_NAME, PROD_DESC, PROD_SUBCATEGORY, PROD_SUBCATEGORY_ID, 
  PROD_SUBCATEGORY_DESC, PROD_CATEGORY, PROD_CATEGORY_ID, 
  PROD_CATEGORY_DESC, PROD_WEIGHT_CLASS, PROD_UNIT_OF_MEASURE, 
  PROD_PACK_SIZE, SUPPLIER_ID, PROD_STATUS, PROD_LIST_PRICE, 
  PROD_MIN_PRICE, PROD_TOTAL, PROD_TOTAL_ID, PROD_SRC_ID, 
  PROD_EFF_FROM, PROD_EFF_TO, PROD_VALID

/* 加上空格后初始化成功*/

ORA-19808错误一例

Goldengate一个令人郁闷的小细节