【OGG】OGG的单向复制配置-支持DDL(二)

一.1  BLOG文档结构图

一.2  前言部分

一.2.1  导读

各位技术爱好者，看完本文后，你可以掌握如下的技能，也可以学到一些其它你所不知道的知识，~O(∩_∩)O~：

① OGG的单向DDL实时复制功能

注意：本篇BLOG中代码部分需要特别关注的地方我都用黄色背景和红色字体来表示，比如下边的例子中，thread 1的最大归档日志号为33，thread 2的最大归档日志号为43是需要特别关注的地方。

List of Archived Logs in backup set 11

Thrd Seq     Low SCN    Low Time            Next SCN   Next Time

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

1    32      1621589    2015-05-29 11:09:52 1625242    2015-05-29 11:15:48

1    33      1625242    2015-05-29 11:15:48 1625293    2015-05-29 11:15:58

2    42      1613951    2015-05-29 10:41:18 1625245    2015-05-29 11:15:49

2    43      1625245    2015-05-29 11:15:49 1625253    2015-05-29 11:15:53

本文如有错误或不完善的地方请大家多多指正，ITPUB留言或QQ皆可，您的批评指正是我写作的最大动力。

一.2.2  实验环境介绍

项目	source db	target  db
db 类型	单实例	单实例
db version	11.2.0.3	11.2.0.3
db 存储	FS type	FS type
ORACLE_SID	ogg1	ogg2
db_name	ogg1	ogg2
主机IP地址：	192.168.59.129	192.168.59.130
OS版本及kernel版本	RHEL6.5 64位，2.6.32-504.16.2.el6.x86_64	RHEL6.5 64位，2.6.32-504.16.2.el6.x86_64
OGG版本	11.2.1.0.1 64位	11.2.1.0.1 64位
OS hostname	orcltest	rhel6_lhr

一.2.3  相关参考文章链接

【OGG】OGG的下载和安装篇：http://blog.itpub.net/26736162/viewspace-1693241/

【OGG】OGG的单向DML复制配置(一):http://blog.itpub.net/26736162/viewspace-1696020/

一.2.4  本文简介

本文基于OGG的DML复制功能，加上DDL复制功能，后续会推出系列的OGG配置，包括双向复制，还有rac到单实例的复制等等，主要参考网址为：http://ylw6006.blog.51cto.com/all/470441/16 ，非常感谢斩月大师。

一.3  实验部分

一.3.1  实验目标

配置2台服务器，搭建OGG,实现hr用户下的数据ddl和DML复制功能。

一.3.2  先验证之前的配置不支持DDL复制

验证之前的配置不支持DDL复制，这里在source端，新建一张表，发现无法复制到target端！target端也新建相同的表后，DML操作可以成功复制。

[oracle@orcltest ~]$ sqlplus hr/hr@ogg1

SQL*Plus: Release 11.2.0.3.0 Production on Wed Jun 10 16:18:03 2015

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> create table t2 (id number primary key,name varchar2(20));

Table created.

SQL> conn hr/hr@ogg2

Connected.

SQL> select tname from tab where tname='T2';

no rows selected

SQL> create table t2 (id number primary key,name varchar2(20));

Table created.

SQL>  conn hr/hr@ogg1

Connected.

SQL>  insert into t2 values (1,'one');

1 row created.

SQL> commit;

Commit complete.

SQL> conn hr/hr@ogg2

Connected.

SQL> select * from t2;

ID NAME

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

1 one

SQL>

此时source库：

GGSCI (orcltest) 26> dblogin userid ggusr@ogg1,password lhr

Successfully logged into database.

GGSCI (orcltest) 29> info trandata hr.t2

Logging of supplemental redo log data is disabled for table HR.T2.

GGSCI (orcltest) 30>

一.3.3  开始配置OGG支持DDL复制(在source端操作)

一.3.3.1  赋予ggusr用户相应的权限，修改全局配置文件添加ggschema参数

[oracle@orcltest ~]$ sqlplus sys/lhr@ogg1 as  sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Wed Jun 10 16:27:05 2015

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL>  grant execute on utl_file to ggusr;

Grant succeeded.

SQL>

[oracle@orcltest gg11]$ ggsci

Oracle GoldenGate Command Interpreter for Oracle

Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO

Linux, x64, 64bit (optimized), Oracle 11g on Apr 23 2012 08:32:14

Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.

GGSCI (orcltest) 1> edit param ./GLOBALS

GGSCHEMA ggusr

~

~

~

~

。。。。。。。。。。。。。。。

~

~

~

~

"./GLOBALS" 1L, 15C written

GGSCI (orcltest) 2> view param ./GLOBALS

GGSCHEMA ggusr

GGSCI (orcltest) 3>

一.3.3.2  运行相关的sql脚本

如果想使用DDL功能，需要在之前运行支持DDL的相关脚本。

1.@marker_setup.sql

2.@ddl_setup.sql

3.@role_setup.sql

4.GRANT GGS_GGSUSER_ROLE TO gguser

5.@ddl_enable.sql

6.@?/rdbms/admin/dbmspool.sql

7.@ddl_pin.sql ggusr

[oracle@orcltest gg11]$ sqlplus sys/lhr@ogg1 as  sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Wed Jun 10 16:30:45 2015

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> @marker_setup.sql

Marker setup script

You will be prompted for the name of a schema for the Oracle GoldenGate database objects.

NOTE: The schema must be created prior to running this script.

NOTE: Stop all DDL replication before starting this installation.

Enter Oracle GoldenGate schema name:ggusr

Marker setup table script complete, running verification script...

Please enter the name of a schema for the GoldenGate database objects:

Setting schema name to GGUSR

MARKER TABLE

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

OK

MARKER SEQUENCE

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

OK

Script complete.

SQL> @ddl_setup.sql

Oracle GoldenGate DDL Replication setup script

Verifying that current user has privileges to install DDL Replication...

You will be prompted for the name of a schema for the Oracle GoldenGate database objects.

NOTE: For an Oracle 10g source, the system recycle bin must be disabled. For Oracle 11g and later, it can be enabled.

NOTE: The schema must be created prior to running this script.

NOTE: Stop all DDL replication before starting this installation.

Enter Oracle GoldenGate schema name:ggusr

Working, please wait ...

Spooling to file ddl_setup_spool.txt

Checking for sessions that are holding locks on Oracle Golden Gate metadata tables ...

Check complete.

Using GGUSR as a Oracle GoldenGate schema name.

Working, please wait ...

DDL replication setup script complete, running verification script...

Please enter the name of a schema for the GoldenGate database objects:

Setting schema name to GGUSR

CLEAR_TRACE STATUS:

Line/pos             Error

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

No errors            No errors

CREATE_TRACE STATUS:

Line/pos             Error

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

No errors            No errors

TRACE_PUT_LINE STATUS:

Line/pos             Error

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

No errors            No errors

INITIAL_SETUP STATUS:

Line/pos             Error

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

No errors            No errors

DDLVERSIONSPECIFIC PACKAGE STATUS:

Line/pos             Error

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

No errors            No errors

DDLREPLICATION PACKAGE STATUS:

Line/pos             Error

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

No errors            No errors

DDLREPLICATION PACKAGE BODY STATUS:

Line/pos             Error

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

No errors            No errors

DDL IGNORE TABLE

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

OK

DDL IGNORE LOG TABLE

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

OK

DDLAUX  PACKAGE STATUS:

Line/pos             Error

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

No errors            No errors

DDLAUX PACKAGE BODY STATUS:

Line/pos             Error

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

No errors            No errors

SYS.DDLCTXINFO  PACKAGE STATUS:

Line/pos             Error

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

No errors            No errors

SYS.DDLCTXINFO  PACKAGE BODY STATUS:

Line/pos             Error

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

No errors            No errors

DDL HISTORY TABLE

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

OK

DDL HISTORY TABLE(1)

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

OK

DDL DUMP TABLES

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

OK

DDL DUMP COLUMNS

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

OK

DDL DUMP LOG GROUPS

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

OK

DDL DUMP PARTITIONS

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

OK

DDL DUMP PRIMARY KEYS

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

OK

DDL SEQUENCE

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

OK

GGS_TEMP_COLS

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

OK

GGS_TEMP_UK

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

OK

DDL TRIGGER CODE STATUS:

Line/pos             Error

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

No errors            No errors

DDL TRIGGER INSTALL STATUS

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

OK

DDL TRIGGER RUNNING STATUS

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

ENABLED

STAYMETADATA IN TRIGGER

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

OFF

DDL TRIGGER SQL TRACING

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

0

DDL TRIGGER TRACE LEVEL

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

0

LOCATION OF DDL TRACE FILE

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

/u02/app/oracle/diag/rdbms/ogg1/ogg1/trace/ggs_ddl_trace.log

Analyzing installation status...

STATUS OF DDL REPLICATION

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

SUCCESSFUL installation of DDL Replication software components

Script complete.

SQL>  @role_setup.sql

GGS Role setup script

This script will drop and recreate the role GGS_GGSUSER_ROLE

To use a different role name, quit this script and then edit the params.sql script to change the gg_role parameter to the preferred name. (Do not run the script.)

You will be prompted for the name of a schema for the GoldenGate database objects.

NOTE: The schema must be created prior to running this script.

NOTE: Stop all DDL replication before starting this installation.

Enter GoldenGate schema name:ggusr

Wrote file role_setup_set.txt

PL/SQL procedure successfully completed.

Role setup script complete

Grant this role to each user assigned to the Extract, GGSCI, and Manager processes, by using the following SQL command:

GRANT GGS_GGSUSER_ROLE TO <loggedUser>

where <loggedUser> is the user assigned to the GoldenGate processes.

SQL> grant ggs_ggsuser_role to ggusr;

Grant succeeded.

SQL> @ddl_enable.sql

Trigger altered.

SQL> @?/rdbms/admin/dbmspool.sql

Package created.

Grant succeeded.

SQL>  @ddl_pin.sql ggusr

PL/SQL procedure successfully completed.

PL/SQL procedure successfully completed.

PL/SQL procedure successfully completed.

SQL>

/u02/app/oracle/diag/rdbms/ogg1/ogg1/trace/ggs_ddl_trace.log 为DDL语句的日志。

一.3.4  source端修改extract进程的params文件，添加"ddl include all"参数，重启extract进程

GGSCI (orcltest) 1> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING

EXTRACT     RUNNING     EORA_HR     00:00:27      00:00:08

EXTRACT     RUNNING     PORA_HR     00:00:00      00:00:02

GGSCI (orcltest) 4> edit params eora_hr

extract eora_hr

setenv (ORACLE_SID=ogg1)

setenv (ORACLE_HOME=/u02/app/oracle/product/11.2.0/dbhome_1)

setenv (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)

ddl include all

userid ggusr,password lhr

exttrail ./dirdat/hr

table hr.*;

~

~

~

~

~

。。。。。。。。。。。。

~

~

~

~

~

~

~

~

"dirprm/eora_hr.prm" 8L, 229C written

GGSCI (orcltest) 5> view params eora_hr

extract eora_hr

setenv (ORACLE_SID=ogg1)

setenv (ORACLE_HOME=/u02/app/oracle/product/11.2.0/dbhome_1)

setenv (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)

ddl include all

userid ggusr,password lhr

exttrail ./dirdat/hr

table hr.*;

GGSCI (orcltest) 6> stop eora_hr

Sending STOP request to EXTRACT EORA_HR ...

Request processed.

GGSCI (orcltest) 7> start eora_hr

Sending START request to MANAGER ...

EXTRACT EORA_HR starting

GGSCI (orcltest) 8> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING

EXTRACT     RUNNING     EORA_HR     00:00:00      00:00:07

EXTRACT     RUNNING     PORA_HR     00:00:00      00:00:09

GGSCI (orcltest) 9>

GGSCI (orcltest) 9> view report EORA_HR

***********************************************************************

Oracle GoldenGate Capture for Oracle

Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO

Linux, x64, 64bit (optimized), Oracle 11g on Apr 23 2012 08:42:16

Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.

Starting at 2015-06-10 16:41:04

***********************************************************************

Operating System Version:

Linux

Version #1 SMP Sun Nov 10 22:19:54 EST 2013, Release 2.6.32-431.el6.x86_64

Node: orcltest

Machine: x86_64

soft limit   hard limit

Address Space Size   :    unlimited    unlimited

Heap Size            :    unlimited    unlimited

File Size            :    unlimited    unlimited

CPU Time             :    unlimited    unlimited

Process id: 22734

Description:

***********************************************************************

**            Running with the following parameters                  **

***********************************************************************

2015-06-10 16:41:04  INFO    OGG-03035  Operating system character set identified as UTF-8. Locale: en_US, LC_ALL:.

extract eora_hr

setenv (ORACLE_SID=ogg1)

Set environment variable (ORACLE_SID=ogg1)

setenv (ORACLE_HOME=/u02/app/oracle/product/11.2.0/dbhome_1)

Set environment variable (ORACLE_HOME=/u02/app/oracle/product/11.2.0/dbhome_1)

setenv (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)

Set environment variable (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)

ddl include all

userid ggusr,password ***

exttrail ./dirdat/hr

table hr.*;

2015-06-10 16:41:04  INFO    OGG-01815  Virtual Memory Facilities for: BR

anon alloc: mmap(MAP_ANON)  anon free: munmap

file alloc: mmap(MAP_SHARED)  file free: munmap

target directories:

/u01/gg11/BR/EORA_HR.

Bounded Recovery Parameter:

BRINTERVAL = 4HOURS

BRDIR      = /u01/gg11

2015-06-10 16:41:04  INFO    OGG-01815  Virtual Memory Facilities for: COM

anon alloc: mmap(MAP_ANON)  anon free: munmap

file alloc: mmap(MAP_SHARED)  file free: munmap

target directories:

/u01/gg11/dirtmp.

CACHEMGR virtual memory values (may have been adjusted)

CACHESIZE:                               64G

CACHEPAGEOUTSIZE (normal):                8M

PROCESS VM AVAIL FROM OS (min):         128G

CACHESIZEMAX (strict force to disk):     96G

Database Version:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

PL/SQL Release 11.2.0.3.0 - Production

CORE    11.2.0.3.0      Production

TNS for Linux: Version 11.2.0.3.0 - Production

NLSRTL Version 11.2.0.3.0 - Production

Database Language and Character Set:

NLS_LANG         = "AMERICAN_AMERICA.ZHS16GBK"

NLS_LANGUAGE     = "AMERICAN"

NLS_TERRITORY    = "AMERICA"

NLS_CHARACTERSET = "ZHS16GBK"

2015-06-10 16:41:04  WARNING OGG-01423  No valid default archive log destination directory found for thread 1.

2015-06-10 16:41:04  INFO    OGG-01513  Positioning to Sequence 8, RBA 4283920, SCN 0.1107430.

2015-06-10 16:41:04  INFO    OGG-01516  Positioned to Sequence 8, RBA 4283920, SCN 0.1107430, Jun 10, 2015 4:40:34 PM.

2015-06-10 16:41:04  INFO    OGG-01055  Recovery initialization completed for target file ./dirdat/hr000001, at RBA 1076.

2015-06-10 16:41:04  INFO    OGG-01478  Output file ./dirdat/hr is using format RELEASE 11.2.

2015-06-10 16:41:04  INFO    OGG-01026  Rolling over remote file ./dirdat/hr000001.

2015-06-10 16:41:04  INFO    OGG-01053  Recovery completed for target file ./dirdat/hr000002, at RBA 1076.

2015-06-10 16:41:04  INFO    OGG-01057  Recovery completed for all targets.

***********************************************************************

**                     Run Time Messages                             **

***********************************************************************

2015-06-10 16:41:04  INFO    OGG-01517  Position of first record processed Sequence 8, RBA 4283920, SCN 0.1107430, Jun 10, 2015 4:40:34 PM.

GGSCI (orcltest) 10>

GGSCI (orcltest) 10> info extract eora_hr

EXTRACT    EORA_HR   Last Started 2015-06-10 16:41   Status RUNNING

Checkpoint Lag       00:00:00 (updated 00:00:04 ago)

Log Read Checkpoint  Oracle Redo Logs

2015-06-10 16:42:16  Seqno 8, RBA 4302848

SCN 0.1107495 (1107495)

GGSCI (orcltest) 11>

一.3.5  target端修改replicat进程的params文件，添加"ddl include all"和"ddlerror default ignore retryop maxretries 3 retrydelay 5" 参数，重启replicat进程

[oracle@rhel6_lhr gg11]$ ggsci

Oracle GoldenGate Command Interpreter for Oracle

Version 11.2.1.0.1 OGGCORE_11.2.1.0.1_PLATFORMS_120423.0230_FBO

Linux, x64, 64bit (optimized), Oracle 11g on Apr 23 2012 08:32:14

Copyright (C) 1995, 2012, Oracle and/or its affiliates. All rights reserved.

GGSCI (rhel6_lhr) 1> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING

REPLICAT    RUNNING     RORA_HR     00:00:00      00:00:07

GGSCI (rhel6_lhr) 2> edit params rora_hr

GGSCI (rhel6_lhr) 3> view params rora_hr

replicat rora_hr

setenv (ORACLE_SID=ogg2)

setenv (ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1)

setenv (NLS_LANG=AMERICAN_AMERICA.ZHS16GBK)

ddl include all

ddlerror default ignore retryop maxretries 3 retrydelay 5

userid ggusr,password lhr

handlecollisions

assumetargetdefs

discardfile ./dirrpt/rora_hr.dsc,purge

map hr.* ,target hr.*;

GGSCI (rhel6_lhr) 4> stop rora_hr

Sending STOP request to REPLICAT RORA_HR ...

Request processed.

GGSCI (rhel6_lhr) 5> start rora_hr

Sending START request to MANAGER ...

REPLICAT RORA_HR starting

GGSCI (rhel6_lhr) 6> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING

REPLICAT    RUNNING     RORA_HR     00:00:00      00:00:06

GGSCI (rhel6_lhr) 7>

GGSCI (rhel6_lhr) 7> info replicat rora_hr

REPLICAT   RORA_HR   Last Started 2015-06-10 02:39   Status RUNNING

Checkpoint Lag       00:00:00 (updated 00:00:08 ago)

Log Read Checkpoint  File ./dirdat/pa000000

First Record  RBA 7200161

GGSCI (rhel6_lhr) 8>

一.3.6  测试

[oracle@orcltest ~]$ sqlplus hr/hr@ogg1

SQL*Plus: Release 11.2.0.3.0 Production on Wed Jun 10 16:47:12 2015

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to:

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production

With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> alter table t2 add location varchar2(200);

Table altered.

SQL> conn hr/hr@ogg2

Connected.

SQL> desc t2

Name                                      Null?    Type

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

ID                                        NOT NULL NUMBER

NAME                                               VARCHAR2(20)

LOCATION                                           VARCHAR2(200)

SQL> conn hr/hr@ogg1

Connected.

SQL> create table t3 as select object_id,object_name from dba_objects;

Table created.

SQL> select count(1) from t3;

COUNT(1)

----------

75262

SQL> conn hr/hr@ogg2

Connected.

SQL> select tname from tab where tname='T3';

TNAME

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

T3

SQL> select count(1) from t3;

COUNT(1)

----------

75217

可以看到DDL语句已经执行了，我们看看DDL语句的日志：

SESS 380011-2015-06-10 16:47:19 : DDL : ************************* Start of log for DDL sequence [14], v[ $Id: ddl_setup.sql /st_oggcore_11.2.1/8 2012/04/02 11:11:33 smijatov Exp $ ] trace level [0], owner schema of DDL package [GGUSR], objtype [TABLE] name [HR.T2]

SESS 380011-2015-06-10 16:47:19 : DDLTRACE1 : Before Trigger: point in execution = [1.0], objtype [TABLE] name [HR.T2]

SESS 380011-2015-06-10 16:47:19 : DDL : DDL operation [alter table t2 add location varchar2(200) ], sequence [14], DDL type [ALTER] TABLE, real object type [TABLE], validity [VALID], object ID [76836], object [HR.T2], real object [HR.T2], base object schema [], base object name [], logged as [HR]

SESS 380011-2015-06-10 16:47:19 : DDL : Start SCN found [1107605]

SESS 380011-2015-06-10 16:47:20 : DDL : ------------------------- End of log for DDL sequence [14]

SESS 390002-2015-06-10 16:48:14 : DDL : ************************* Start of log for DDL sequence [501], v[ $Id: ddl_setup.sql /st_oggcore_11.2.1/8 2012/04/02 11:11:33 smijatov Exp $ ] trace level [0], owner schema of DDL package [GGUSR], objtype [TABLE] name [HR.T3]

SESS 390002-2015-06-10 16:48:14 : DDLTRACE1 : Before Trigger: point in execution = [1.0], objtype [TABLE] name [HR.T3]

SESS 390002-2015-06-10 16:48:14 : DDL : DDL operation [create table t3 as select object_id,object_name from dba_objects ], sequence [501], DDL type [CREATE] TABLE, real object type [TABLE], validity [], object ID [], object [HR.T3], real object [HR.T3], base object schema [], base object name [], logged as [HR]

SESS 390002-2015-06-10 16:48:14 : DDL : Start SCN found [1107994]

SESS 390002-2015-06-10 16:48:14 : DDL : ------------------------- End of log for DDL sequence [501]

一.3.7  实验总结

DDL复制，我们可以从日志看出其执行的SQL语句，若DML配置熟悉的话，DDL配置就很简单了。

一.4  About Me

...........................................................................................................................................................................................

本文作者：小麦苗，只专注于数据库的技术，更注重技术的运用

ITPUB BLOG：http://blog.itpub.net/26736162

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