Oracle 11g OGG 修改 trail 文件大小

OGG 修改 trail 文件大小

2018-06-11 15:14 380 0 原创 GoldenGate

本文链接：https://www.cndba.cn/leo1990/article/2856

1. OGG 修改 trail 文件大小

1.1. 添加进程指定trail文件大小

添加本地队列文件的时候megabytes 添加参数指定队列文件的大小，如果指定默认是100m
例如：
add exttrail ./dirdat/et, extract ext1
add rmttrail ./dirdat/et,extract pump1
GGSCI (cndba) 8> info exttrail *

       Extract Trail: ./dirdat/et
             Extract: EXT1
               Seqno: 8
                 RBA: 1075
           File Size: 100M

       Extract Trail: ./dirdat/et
             Extract: PUMP1
               Seqno: 6
                 RBA: 1314
           File Size: 100M
可通过以下方式在添加时指定trail文件大小：
add exttrail ./dirdat/et,extract ext1,megabytes 500
ADD RMTTRAIL ./dirdat/et, EXTRACT pump1, MEGABYTES 500

1.2. 修改trail文件大小

你可以通过alter 命令调整MEGABYTES 参数的值来改变trail 文件的大小，是使用ALTER EXTTRAIL
或者 ALTER RMTTRAIL要看trail 文件是在本地还是在其它地方
使用下面的命令获得你想修改trail 文件的存放地址，你的trail文件所属的组
本地
INFO EXTTRAIL * (Local trail)
INFO RMTTRAIL * （Remote trail）
通过以下命名修改本地和远端的trail文件
(Remote trail)
ALTER RMTTRAIL <trail name>, EXTRACT <group name>, MEGABYTES <n>
(Local trail)
ALTER EXTTRAIL <trail name>, EXTRACT <group name>, MEGABYTES <n>

1.3. 修改trail文件大小步骤

1.3.1. 停止源端抽取和投递进程

GGSCI (cndba) 12> stop ext1

Sending STOP request to EXTRACT EXT1 ...
Request processed.

1.3.2. 查看复制进程应用trail 文件情况

检查源端投递到目标端的trail文件和目标端trail文件检查点是否一致，若果一样说明复制进程应用完成可以继续后面的操作
--源端查看检查点信息
GGSCI (cndba) 5> info pump1,showch

EXTRACT    PUMP1     Last Started 2018-06-11 21:17   Status RUNNING
Checkpoint Lag       00:00:00 (updated 00:00:07 ago)
Log Read Checkpoint  File ./dirdat/et000025
                     2018-06-11 21:17:54.955265  RBA 1075

Current Checkpoint Detrail:

Read Checkpoint #1

  GGS Log Trail

  Startup Checkpoint (starting position in the data source):
    Sequence #: 24
    RBA: 1324
    Timestamp: 2018-06-11 18:49:55.000000
    Extract Trail: ./dirdat/et

  Current Checkpoint (position of last record read in the data source):
    Sequence #: 25
    RBA: 1075
    Timestamp: 2018-06-11 21:17:54.955265
    Extract Trail: ./dirdat/et

Write Checkpoint #1

  GGS Log Trail

  Current Checkpoint (current write position):
    Sequence #: 22
    RBA: 1314
    Timestamp: 2018-06-11 21:20:05.434123
    Extract Trail: ./dirdat/et

CSN state information:
  CRC: 41-A9-39-75
  Latest CSN: 1311152
  Latest TXN: 3.2.972
  Latest CSN of finished TXNs: 1311152
  Completed TXNs: 3.2.972

Header:
  Version = 2
  Record Source = A
  Type = 1
  # Input Checkpoints = 1
  # Output Checkpoints = 1

File Information:
  Block Size = 2048
  Max Blocks = 100
  Record Length = 2048
  Current Offset = 0

Configuration:
  Data Source = 0
  Transaction Integrity = 1
  Task Type = 0

Status:
  Start Time = 2018-06-11 21:17:53
  Last Update Time = 2018-06-11 21:20:05
  Stop Status = A
  Last Result = 400
--目标端查看检查点信息
GGSCI (cndba) 6> info rep1,showch

REPLICAT   REP1      Last Started 2018-06-11 21:18   Status RUNNING
Checkpoint Lag       00:00:00 (updated 00:00:02 ago)
Log Read Checkpoint  File ./dirdat/et000022
                     2018-06-11 21:17:55.377684  RBA 1314

Current Checkpoint Detrail:

Read Checkpoint #1

  GGS Log Trail

  Startup Checkpoint (starting position in the data source):
    Sequence #: 21
    RBA: 2327
    Timestamp: 2018-06-11 18:49:49.320050
    Extract Trail: ./dirdat/et

  Current Checkpoint (position of last record read in the data source):
    Sequence #: 22
    RBA: 1314
    Timestamp: 2018-06-11 21:17:55.377684
    Extract Trail: ./dirdat/et

CSN state information:
  CRC: 9-70-46-F2
  Latest CSN: 1311152
  Latest TXN: 3.2.972
  Latest CSN of finished TXNs: 1311152
  Completed TXNs: 3.2.972

Header:
  Version = 2
  Record Source = A
  Type = 1
  # Input Checkpoints = 1
  # Output Checkpoints = 0

File Information:
  Block Size = 2048
  Max Blocks = 100
  Record Length = 2048
  Current Offset = 0

Configuration:
  Data Source = 0
  Transaction Integrity = -1
  Task Type = 0

Database Checkpoint:
  Checkpoint table = ogg.checkpoint
  Key = 401993224 (0x17f5ee08)
  Create Time = 2018-06-07 16:09:16

Status:
  Start Time = 2018-06-11 21:18:05
  Last Update Time = 2018-06-11 21:35:09
  Stop Status = A
  Last Result = 400

1.3.3. 在源端查看trail文件大小信息

GGSCI (cndba) 14>  info exttrail *

       Extract Trail: ./dirdat/et
             Extract: EXT1
               Seqno: 8
                 RBA: 1075
           File Size: 100M

       Extract Trail: ./dirdat/et
             Extract: PUMP1
               Seqno: 6
                 RBA: 1314
           File Size: 100M

1.3.4. 投递进程

GGSCI (cndba) 13> stop pump1

Sending STOP request to EXTRACT PUMP1 ...
Request processed.

1.3.5. 停止目标端复制进程

GGSCI (cndba) 10> stop rep1

Sending STOP request to REPLICAT REP1 ...
Request processed.

GGSCI (cndba) 11> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING
REPLICAT    STOPPED     REP1        00:00:00      00:00:01

1.3.6. 修改本地和远端trail文件大小

修改本地文件需要重启抽取进程
GGSCI (cndba) 19> alter exttrail ./dirdat/et,extract ext1,megabytes 200
EXTTRAIL altered.
如果只修改远端trail文件大小的话不需要重启进程，直接修改。
GGSCI (cndba) 18> alter rmttrail ./dirdat/et, extract pump1, megabytes 200
RMTTRAIL altered.

1.3.7. 启动源端进程

GGSCI (cndba) 21> start ext1

Sending START request to MANAGER ...
EXTRACT EXT1 starting
GGSCI (cndba) 22> start pump1

Sending START request to MANAGER ...
EXTRACT PUMP1 starting

1.3.8. 生成本地和远端新的trail文件

GGSCI (cndba) 23> SEND extract ext1, ROLLOVER

Sending ROLLOVER request to EXTRACT EXT1 ...
Request processed.

GGSCI (cndba) 24> SEND extract pump1, ROLLOVER

Sending ROLLOVER request to EXTRACT PUMP1 ...
Request processed.
查看修改后的trail文件大小
GGSCI (cndba) 25> info exttrail *

       Extract Trail: ./dirdat/et
             Extract: EXT1
               Seqno: 10
                 RBA: 1016
           File Size: 200M

       Extract Trail: ./dirdat/et
             Extract: PUMP1
               Seqno: 8
                 RBA: 1265
           File Size: 200M

1.3.9. 启动目标端进程

GGSCI (cndba) 12> start rep1

Sending START request to MANAGER ...
REPLICAT REP1 starting

GGSCI (cndba) 13> info all

Program     Status      Group       Lag at Chkpt  Time Since Chkpt

MANAGER     RUNNING
REPLICAT    RUNNING     REP1        00:00:00      00:00:02