OGG-00446 分析与解决

1. 00446
- 1.1. Missing filename opening checkpoint file
  - 1.1.1. 错误信息
  - 1.1.2. 分析
- 1.2. could not find archived log
  - 1.2.1. 错误信息
  - 1.2.2. 分析

1 00446

OGG 的一些错误编号，包含了很多种不同的原因。00446 就是这样的一种，不同的原因有不同的提示。本文包含两种：

Missing filename opening checkpoint file
could not find archived log

下面看分析与解决方法。

1.1 Missing filename opening checkpoint file

1.1.1 错误信息

2019-07-02T23:26:17.998+0800  ERROR   OGG-00446  Oracle GoldenGate Delivery, xmsys.prm:  Missing filename opening checkpoint file.
2019-07-02T23:26:17.999+0800  ERROR   OGG-01668  Oracle GoldenGate Delivery, xmsys.prm:  PROCESS ABENDING.

1.1.2 分析

出现此错误，原因是参数配置与命令不匹配。比如from file方式的数据应用进程,如果使用ggsci命令start命令来启动, 则会出现这种错误。下面是两则安全，根本原因都是命令与参数配置不匹配，一种是初始化，一种是实时应用。

案例1->初始化

参数配置 以下配置为一例 ogg for kafka 的 From File 方式初始化应用进程的配置。

  SPECIALRUN    -- 此行为重点
END RUNTIME
SETENV(nls_lang="AMERICAN_AMERICA.ZHS16GBK")
targetdb libfile libggjava.so set property=dirprm/xmins.props
EXTFILE dirdat/ii
reportcount every 1 minutes , rate
grouptransops 10000

启动命令
```
start initsp
```

日志

  .........
2019-07-02T23:26:15.409+0800  INFO    OGG-01360  Oracle GoldenGate Delivery, xmsys.prm:  REPLICAT is running in Special Run mode.
2019-07-02T23:26:15.615+0800  INFO    OGG-15052  Oracle GoldenGate Delivery, xmsys.prm:  Using Java class path: ggjava/ggjava.jar:ggjava/resources/lib/optional/log4j-api-2.9.1.jar:ggjava/resources/lib/optional/log4j-core-2.9.1.jar:ggjava/resources/lib/optional/log4j-slf4j-impl-2.9.1.jar.
2019-07-02T23:26:17.988+0800  INFO    OGG-01815  Oracle GoldenGate Delivery, xmsys.prm:  Virtual Memory Facilities for: COM
                                  anon alloc: mmap(MAP_ANON)  anon free: munmap
                                  file alloc: mmap(MAP_SHARED)  file free: munmap
                                  target directories:
                                  /home/ogg/dirtmp.
2019-07-02T23:26:17.998+0800  ERROR   OGG-00446  Oracle GoldenGate Delivery, xmsys.prm:  Missing filename opening checkpoint file.
2019-07-02T23:26:17.999+0800  ERROR   OGG-01668  Oracle GoldenGate Delivery, xmsys.prm:  PROCESS ABENDING.

解决通过操作系统命令 replicat 执行初始化:

$OGG_HOME/replicat paramfile $OGG_HOME/dirprm/xmsys.prm

案例2->实时抽取

参数配置

  passthru
rmthost 192.168.153.129, mgrport 7809
rmttrail /u02/ggs/dirdat/td
gettruncates
table scott.*;
sequence scott.*;

分析第一行应为:
```
extract test
```

1.2 could not find archived log

1.2.1 错误信息

在ggserr.log 中发现如下错误:

2019-05-31t10:56:53.629+0800  error   ogg-00446  oracle goldengate capture for oracle, extxmdev.prm:  could not find archived log for sequence 2649 thread 1 under default destinations sql <select  name    from v$archived_log   where sequence# = :ora_seq_no and         thread# = :ora_thread and         resetlogs_id = :ora_resetlog_id and         archived = 'yes' and         deleted = 'no' and         name not like '+%'         and standby_dest = 'no' >, error retrieving redo file name for sequence 2649, archived = 1, use_alternate = 0not able to establish initial position for sequence 2649, rba 13816848.
2019-05-31t10:56:53.641+0800  error   ogg-01668  oracle goldengate capture for oracle, extxmdev.prm:  process abending.

1.2.2 分析

从错误信息提示来看，是归档日志找不到引起的中断。经查看归档日志确实不存在。已被物理删除。且没有备份。

数据不重要

此时可以修改extract 的起始值,跳过缺失的归档文件，这在测试和开发环境中应用较多。首先查看可用归档:

select sequence# ,first_change#, next_change# ,deleted,applied,status from v$archived_log;

 sequence# first_change# next_change# del applied   s
---------- ------------- ------------ --- --------- -
      3759      16360310     16401138 yes no        a
      3760      16401138     16419033 no  no        a

从上面的查询结果来看，3759号归档已被删除，最新可用归档是3760. 对应最早的 scn号是16401138. 将extract 进程的scn 值调整至16401138:

alter extrace extxmdev, scn 16401138
start ext extxmdev

数据重要

OGG-00446 分析与解决

OGG-00446 分析与解决

Table of Contents

1 00446

Missing filename opening checkpoint file

could not find archived log

1.1 Missing filename opening checkpoint file

1.1.1 错误信息

1.1.2 分析

1.2 could not find archived log

1.2.1 错误信息

1.2.2 分析