cdc目标端数据库初始化（backup restore）

1、   backup database to establish table mapping

 

[db2inst1@mongo1 ~]$ db2 backup db sample online include logs

 

Backup successful. The timestamp for this backup image is : 20181030093222

 

[db2inst1@mongo1 ~]$ ll

total 182968

-rw-rw-r--  1 db2inst1 db2inst1      1715 Oct 30 00:43 1.sql

-rw-rw-r--  1 db2inst1 db2inst1      1668 Oct 30 00:47 2.sql

drwxrwxr-x  3 db2inst1 db2inst1        22 Oct 29 22:53 archlog

-rw-rw-r--  1 db2inst1 db2inst1   1474496 Oct 29 14:23 date.log

drwxrwxr-x  3 db2inst1 db2inst1        22 Oct 23 23:40 db2inst1

drwxrwxr-x  5 db2inst1 db2inst1       180 Oct 24 10:30 mon

-rw-------  1 db2inst1 db2inst1 185872384 Oct 30 09:32 SAMPLE.0.db2inst1.DBPART000.20181030093222.001

drwxrwsr-t 24 db2inst1 db2inst1      4096 Oct 29 22:54 sqllib

[db2inst1@mongo1 ~]$ scp SAMPLE.0.db2inst1.DBPART000.20181030093222.001 db2inst1@mongo2:/home/db2inst1

db2inst1@mongo2's password:

SAMPLE.0.db2inst1.DBPART000.20181030093222.001                                                                                       100%  177MB  26.9MB/s   00:06   

[db2inst1@mongo1 ~]$

 

 

2、   target create cdc instance

[db2inst1@mongo2 ~]$ cd /opt/ibm/InfoSphereDataReplication/ReplicationEngineforIBMDB2/bin/

[db2inst1@mongo2 bin]$ ./dmconfigurets

Initializing. Please wait...

MAIN MENU

---------

 

1. List Current Instances

2. Add an Instance

3. Edit an Instance

4. Delete an Instance

5. Consolidate Instances

 

6. Exit

 

Enter your selection:4

DELETING AN INSTANCE

--------------------

 

List of current Instances:

 

1. target

2. sample

 

 

Enter the number of the instance you want to delete or press ENTER to return to the Main menu:2

 

Are you sure you want to delete instance sample (y/n):y

 

Instance sample successfully deleted.

 

Press ENTER to return to the Main menu...

MAIN MENU

---------

 

1. List Current Instances

2. Add an Instance

3. Edit an Instance

4. Delete an Instance

5. Consolidate Instances

 

6. Exit

 

Enter your selection:2

ADDING A NEW INSTANCE

---------------------

 

Enter the name of the new instance: sample

Enter the server port number [10902]:

 

Staging Store Disk Quota is used to limit the disk space used by IBM InfoSphere Data Replication staging Store. If this space is exhausted, this instance may run at a

lower speed. The minimum value allowed is 1 GB.

Enter the Staging Store Disk Quota for this instance (GB) [100]: 2

Enter the Maximum Memory Allowed for this instance (MB) [1024]: 256

Select y to use JMS or TCP/IP engine communication connection, select n to use TCP only engine communication connection (y/n) [n]:

Select a DB2 Instance

 

1. db2inst1

2. Other...

 

Select a DB2 Instance [db2inst1]:

Select a database name

 

1. TARGET

2. SAMPLE

3. Other...

 

Select a database name: 2

Would you like to configure advanced parameters (y/n) [n]:

Enter the username [db2inst1]:

Enter the password:

Retrieving schema list...

Metadata schema:

 

1. CDC

2. DB2INST1

3. Other...

 

Select a database schema for metadata tables: 1

Would you like to specify a refresh loader path (y/n) [y]: n

 

 

Creating a new instance. Please wait...

 

 

You are about to overwrite metadata for a previous instance of IBM InfoSphere Data Replication that appears to be removed from the system. If you overwrite the metadat

a, you will not be able to use previous instance of IBM InfoSphere Data Replication. Do you want to proceed (y/n)?y

Instance sample was successfully created.

 

Would you like to START instance sample now (y/n)?y

 

Starting instance sample. Please wait...

 

Instance sample started successfully. Press ENTER to go to the Main menu...

MAIN MENU

---------

 

1. List Current Instances

2. Add an Instance

3. Edit an Instance

4. Delete an Instance

5. Consolidate Instances

 

6. Exit

 

Enter your selection:6

 

Exiting...

[db2inst1@mongo2 bin]$

 

3、   add table mapping

 

4、   target export cdc metadata tables

[db2inst1@mongo2 bin]$ db2 connect to sample

 

   Database Connection Information

 

 Database server        = DB2/LINUXX8664 10.5.10

 SQL authorization ID   = DB2INST1

 Local database alias   = SAMPLE

 

[db2inst1@mongo2 bin]$ db2 list tables for schema cdc

 

Table/View                      Schema          Type  Creation time            

------------------------------- --------------- ----- --------------------------

TS_AUTH                         CDC             T     2018-10-30-09.37.27.518036

TS_BOOKMARK                     CDC             T     2018-10-30-09.37.28.682909

TS_CONFAUD                      CDC             T     2018-10-30-09.37.29.051967

TS_DDLAUD                       CDC             T     2018-10-30-09.37.29.574086

 

  4 record(s) selected.

 

[db2inst1@mongo2 bin]$ cd

[db2inst1@mongo2 ~]$ db2 "export cdc.ts_auth.del of del select * from cdc.ts_auth"

SQL0104N  An unexpected token "cdc.ts_auth.del" was found following "EXPORT". 

Expected tokens may include:  "TO".  SQLSTATE=42601

[db2inst1@mongo2 ~]$ db2 "export to cdc.ts_auth.del of del select * from cdc.ts_auth"

SQL3104N  The Export utility is beginning to export data to file

"cdc.ts_auth.del".

 

SQL3105N  The Export utility has finished exporting "6" rows.

 

 

Number of rows exported: 6

 

[db2inst1@mongo2 ~]$ db2 "export to cdc.ts_bookmark.del of del select * from cdc.ts_bookmark"

SQL3104N  The Export utility is beginning to export data to file

"cdc.ts_bookmark.del".

 

SQL3105N  The Export utility has finished exporting "0" rows.

 

 

Number of rows exported: 0

 

[db2inst1@mongo2 ~]$ db2 "export to cdc.ts_confaud.del of del select * from cdc.ts_confaud"

SQL3104N  The Export utility is beginning to export data to file

"cdc.ts_confaud.del".

 

SQL3105N  The Export utility has finished exporting "0" rows.

 

 

Number of rows exported: 0

 

[db2inst1@mongo2 ~]$ db2 "export to cdc.ts_ddlaud.del of del select * from cdc.ts_ddlaud"

SQL3132W  The character data in column "STATEMENT" will be truncated to size

"32700".

 

SQL3104N  The Export utility is beginning to export data to file

"cdc.ts_ddlaud.del".

 

SQL3105N  The Export utility has finished exporting "0" rows.

 

 

Number of rows exported: 0

5、   source external unload start

开始之前，模拟一个事务持续执行插入数据 :

i=1

 while (($i < 10000))

 do

 db2 "insert into xpf1 values(int(rand()*1000), char(int(rand()*1000)||'abc'||int(rand()*1000)))"

 db2 "insert into xpf2 values(int(rand()*1000), char(int(rand()*1000)||'abc'||int(rand()*1000)))"

 db2 "insert into xpf3 values(int(rand()*1000), char(int(rand()*1000)||'abc'||int(rand()*1000)))"

 i=$((i=i+1))

 sleep 1

 done

 

 

[db2inst1@mongo1 ~]$ cd /opt/ibm/InfoSphereDataReplication/ReplicationEngineforIBMDB2/bin

[db2inst1@mongo1 bin]$ ./dmmarkexternalunloadstart -I source -s SAMPLE -t DB2INST1.XPF1

Successfully marked the unload start point.

[db2inst1@mongo1 bin]$ ./dmmarkexternalunloadstart -I source -s SAMPLE -t DB2INST1.XPF2

Successfully marked the unload start point.

[db2inst1@mongo1 bin]$ ./dmmarkexternalunloadstart -I source -s SAMPLE -t DB2INST1.XPF3

Successfully marked the unload start point.

[db2inst1@mongo1 bin]$

6、   source backup database online

[db2inst1@mongo1 bin]$ cd ~

[db2inst1@mongo1 ~]$ db2 backup db sample online include logs

 

Backup successful. The timestamp for this backup image is : 20181030094634

 

[db2inst1@mongo1 ~]$ ll

total 364484

-rw-rw-r--  1 db2inst1 db2inst1      1715 Oct 30 00:43 1.sql

-rw-rw-r--  1 db2inst1 db2inst1      1668 Oct 30 00:47 2.sql

drwxrwxr-x  3 db2inst1 db2inst1        22 Oct 29 22:53 archlog

-rw-rw-r--  1 db2inst1 db2inst1   1474496 Oct 29 14:23 date.log

drwxrwxr-x  3 db2inst1 db2inst1        22 Oct 23 23:40 db2inst1

drwxrwxr-x  5 db2inst1 db2inst1       180 Oct 24 10:30 mon

-rw-------  1 db2inst1 db2inst1 185872384 Oct 30 09:32 SAMPLE.0.db2inst1.DBPART000.20181030093222.001

-rw-------  1 db2inst1 db2inst1 185872384 Oct 30 09:46 SAMPLE.0.db2inst1.DBPART000.20181030094634.001

drwxrwsr-t 24 db2inst1 db2inst1      4096 Oct 29 22:54 sqllib

7、   source external unload end

[db2inst1@mongo1 ~]$ cd /opt/ibm/InfoSphereDataReplication/ReplicationEngineforIBMDB2/bin

[db2inst1@mongo1 bin]$ ./dmmarkexternalunloadend -I source -s SAMPLE -t DB2INST1.XPF1

Successfully marked the unload stop point.

[db2inst1@mongo1 bin]$ ./dmmarkexternalunloadend -I source -s SAMPLE -t DB2INST1.XPF2

Successfully marked the unload stop point.

[db2inst1@mongo1 bin]$ ./dmmarkexternalunloadend -I source -s SAMPLE -t DB2INST1.XPF3

Successfully marked the unload stop point.

8、   target restore database

[db2inst1@mongo1 ~]$ scp SAMPLE.0.db2inst1.DBPART000.20181030094634.001 db2inst1@mongo2:/home/db2inst1

db2inst1@mongo2's password:

SAMPLE.0.db2inst1.DBPART000.20181030094634.001                                                                                       100%  177MB  29.2MB/s   00:06   

[db2inst1@mongo1 ~]$

 

 

[db2inst1@mongo2 ~]$ db2 restore db sample logtarget /home/db2inst1/logtarget/

DB20000I  The RESTORE DATABASE command completed successfully.

[db2inst1@mongo2 ~]$ db2 "rollforward db sample to end of logs and stop overflow log path ('/home/db2inst1/logtarget')"

 

                                 Rollforward Status

 

 Input database alias                   = sample

 Number of members have returned status = 1

 

 Member ID                              = 0

 Rollforward status                     = not pending

 Next log file to be read               =

 Log files processed                    = S0000016.LOG - S0000016.LOG

 Last committed transaction             = 2018-10-30-02.00.34.000000 UTC

 

DB20000I  The ROLLFORWARD command completed successfully.

[db2inst1@mongo2 ~]$ db2 connect to sample

 

   Database Connection Information

 

 Database server        = DB2/LINUXX8664 10.5.10

 SQL authorization ID   = DB2INST1

 Local database alias   = SAMPLE

 

[db2inst1@mongo2 ~]$ db2 "import from cdc.ts_auth.del of del replace into cdc.ts_auth"

SQL3109N  The utility is beginning to load data from file "cdc.ts_auth.del".

 

SQL3110N  The utility has completed processing.  "6" rows were read from the

input file.

 

SQL3221W  ...Begin COMMIT WORK. Input Record Count = "6".

 

SQL3222W  ...COMMIT of any database changes was successful.

 

SQL3149N  "6" rows were processed from the input file.  "6" rows were

successfully inserted into the table.  "0" rows were rejected.

 

 

Number of rows read         = 6

Number of rows skipped      = 0

Number of rows inserted     = 6

Number of rows updated      = 0

Number of rows rejected     = 0

Number of rows committed    = 6

 

9、   management console restart subscription

10、             compare source and target

source:

[db2inst1@mongo1 ~]$ db2 "select count(*) from xpf3"

 

1         

-----------

        808

 

  1 record(s) selected.

 

[db2inst1@mongo1 ~]$ db2 "select count(*) from xpf2"

 

1         

-----------

        808

 

  1 record(s) selected.

 

[db2inst1@mongo1 ~]$ db2 "select count(*) from xpf1"

 

1         

-----------

        809

 

  1 record(s) selected.

[db2inst1@mongo1 ~]$ db2 "select count(*) from xpf3"

 

1         

-----------

        808

 

  1 record(s) selected.

 

[db2inst1@mongo1 ~]$ db2 "select count(*) from xpf2"

 

1         

-----------

        808

 

  1 record(s) selected.

 

[db2inst1@mongo1 ~]$ db2 "select count(*) from xpf1"

 

1         

-----------

        809

 

  1 record(s) selected.

 

 

target:

[db2inst1@mongo2 bin]$  db2 "select count(*) from xpf1"

 

1         

-----------

        809

 

  1 record(s) selected.

 

[db2inst1@mongo2 bin]$  db2 "select count(*) from xpf2"

 

1         

-----------

        808

 

  1 record(s) selected.

 

[db2inst1@mongo2 bin]$  db2 "select count(*) from xpf3"

 

1         

-----------

        808

 

  1 record(s) selected.

 

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