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IDS Forum

CDR_LOG_LAG_ACTION shutdown issues

Date: Tuesday, 8 October 2013, at 3:16 p.m.


I have an Enterprise Replication setup in a lab environment, and I am specifically testing to see if setting CDR_LOG_LAG_ACTION to shutdown will turn off replication when the replay position is in danger of being overrun. I have three 256MB logical log files, and I pulled the network connection to the backup server in order to test this. I am using the OpenAdmin Tool to monitor the progress. I verified that the OAT Configuration tab has CDR_LOG_LAG_ACTION set to shutdown. I observed the Proximity to DDRBLOCK go from about 57,000 to -21,000. cdr list server still shows the primary to be in an Active state, and the OAT Proximity to DDR Block is continually decreasing to a negative value then resetting to a large positive value. I would have thought that cdr list server would have given me an Enterprise Replication not active error. When can I expect ER to shut down?

Here are the particulars:
IBM Informix Dynamic Server Version 11.70.FC5GE

Tail of online log:

13:59:18 CDR Spool transaction queue completed
14:07:00 CDR Spool transaction queue completed
14:10:04 CDR connection to server lost, id 22, name <testbk_server>
Reason: ASF connect attempt failed
14:10:31 Warning - The log space appears to be configured too small

for use with Enterprise Replication (ER). ER may require

additional logical logs to avoid a DDRBLOCK state

and/or replay position log wrap. It is recommended that the

logical log configuration be expanded.
14:10:32 Logical Log 195 Complete, timestamp: 0xbd1029b.
14:10:32 Process exited with return code 1: /bin/sh /bin/sh -c /informix/11.70/etc/ 2 23 "Logical Log 195 Complete, timestamp: 0xbd1029b." "Logical Log 195 Complete, timestamp: 0xbd1029b." "" 23001
14:10:48 CDR Spool transaction queue completed
14:28:14 Checkpoint Completed: duration was 5 seconds.
14:28:14 Tue Oct 8 - loguniq 196, logpos 0xb69b118, timestamp: 0xbda6380 Interval: 3450

14:28:14 Maximum server connections 128
14:28:14 Checkpoint Statistics - Avg. Txn Block Time 0.013, # Txns blocked 10, Plog used 206859, Llog used 138662

Capture Log Position: 196:335163392
Capture Log Position: 196:335160568
Replay Log Position: 196:2908200

Last Data ACKed: 193:183484832

I also observed the Proximity to DDRBLOCK value go from -71720 to 51274 in 30 seconds, and at the same time, the Proximity to Log Wrap went from 55257 to 178251. These were both steadily decreasing over a period of 30 minutes or so.

Thanks in advance.


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