|
Problem IT17139
|
Status: Closed |
HADR STANDBY ONLY WRITES ONE LOG PAGE AT A TIME TO DISK DURING REMOTE CATCHUP STATE WHICH COULD MAKE THE GAP BIGGER |
| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
When this problem happens, OS command like topas shows db2 only
write 4KB per I/O at most of the times, i.e. one log page per
write, this I/O is
inefficient.
The cause is that we are splitting the received data pages into
separate and individual data blocks
based on whether this page is marked as end of flush. Each I/O
only writes one separated block on disk. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Db2 10.5 Fix Pack 9 or higher *
**************************************************************** |
| Local Fix: |
N/A |
| Solution |
First fixed in Db2 10.5 Fix Pack 9 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 20.09.2016
29.09.2017
29.09.2017 |
| Problem solved at the following versions (IBM BugInfos) |
9.0.
|
| Problem solved according to the fixlist(s) of the following version(s) |
