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*/
Comment