Informix - Problem description
Problem IT26765 | Status: Closed |
AFTER SYSPURGE() EXECUTES, THE NEXT NEW FRAGMENT IN A ROLLING WINDOW IS CREATED IN THE FIRST DBSPACE OF THE STORE IN() CLAUSE | |
product: | |
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10 | |
Problem description: | |
In general, the expected behavior of a Rolling window fragmentation strategy is that the next fragment should be created in the next available dbspace in line following the most recent fragment. In 12.10.xC10 a fix was added to ensure after an instance stop and restart that the next fragment would go to the next dbspace in line. However, syspurge() does not behave as should be expected after that fix. After syspurge() successfully destroys old fragments outside the range of the rolling window in 12.10.xC12, the next fragment gets created in the very first dbspace listed in the STORE IN() clause, when it should be created in the next dbspace in line following the most recent previous fragment. This results in uneven fragmentation distribution and storage issues that may require creation of new chunks to handle the extra, unplanned, data in a given dbspace. | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * Users of IDS versions prior to 12.10.xC14. * **************************************************************** * PROBLEM DESCRIPTION: * * After syspurge() executes in 12.10.xC12, the next new * * fragment in a Rolling window is created in the first dbspace * * of the STORE IN() clause. * **************************************************************** * RECOMMENDATION: * **************************************************************** | |
Local Fix: | |
Solution | |
Workaround | |
not known / see Local fix | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 26.10.2018 24.09.2019 24.09.2019 |
Problem solved at the following versions (IBM BugInfos) | |
12.10.xC14 | |
Problem solved according to the fixlist(s) of the following version(s) |